Check out our new search page - the second item in the acronyms menu - and go straight to your acronym.
|
ACRONYM
|
CONTEXT
|
EXPANSION
|
|
TOP
|
| - |
| -OE | Software Engineering | an ending that generally means Operating Environment - |
| 1 |
| 1337 | blogs, Internet Gaming, odd stuff (not an acronym), slang | Pronounced "leet", means "elite", also spelled "l33t" . - |
| 1NF | Relational Databases | First Normal Form - |
| 1xRTT | Radio Telephony, Wireless Networking | 1x (single-carrier) Radio Transmission Technology - a CDMA technology, aka "2.5G" that offers faster voice and data speeds than IS-95 . |
| 2 |
| 2G | Radio Telephony, Wireless Networking | 2nd Generation - Second Generation |
| 2NF | Relational Databases | Second Normal Form - |
| 2PC | Databases | Two-Phase Commit - |
| 3 |
| 3DES | Network Engineering | 3x Data Encryption Standard - a 168-bit encryption (see DES) |
| 3G | Radio Telephony, Wireless Networking | 3rd Generation - Second Generation |
| 3GPP | Radio Telephony, Wireless Networking | 3rd Generation Partnership Project - a 3rd Generation technology project that resulted in the creation of the specifications for, the UTMS system. |
| 3NF | Relational Databases | Third Normal Form - |
| A |
| AA | NCR Organization | Administrative Assistant - |
| AA | ATI, Computer Gaming, Computer Graphics, Computer Video, NVidia | Anti-Aliasing - |
| AAA | IETF, Internet, Network Protocols, TCP/IP | Authentication, Authorization and Accounting - a category of requirements for most network/communications protocols now under development (2004) |
| AAF | Multi-Media Formats | Advanced Authoring Format - |
| AAF | Engineering | Automated Analysis Facility - |
| AAL | ATM Communications Protocol | ATM Adaptation Layer - |
| ABR | OSE Networking | Area Border Router - |
| AC | Electrical Engineering | Alternating Current - |
| AC-3 | Audio Engineering | A surround-sound encoding developed by Dolby, supports 5 channels and a non-directional subwoofer. Also known as Dolby Digital - |
| ACD | Telephony Engineering | Automatic Call Distributor - a CTI feature which routes incoming calls to a (one of) specific group of telephones, e.g. a sales group |
| ACDT | Apple Computer Certification | Apple Certified Desktop Technician - |
| ACHDS | Apple Computer Certification | Apple Certified Help Desk Specialist - |
| ACID | Marketing | Automaticity Consistency Integrity Durability - a.k.a. the ACID test |
| ACIS | Telephony Engineering | Automatic Customer/Caller Identification - |
| ACL | Bluetooth, Networking | Asynchronous Connectionless Link - |
| ACL | Security | Access Control List - list of who or what can access something |
| ACPI | BIOS, Motherboards, PC Hardware | Advanced Configuration and Power Interface - a feature of some computer motherboard BIOS' which ensnles the operating system to control certain hardware functions, especially having to to with power. |
| ACPT | Apple Computer Certification | Apple Certified Portable Technician - |
| ACS | Telephony Engineering | Automatic Call Sequencer - |
| ACSA | Apple Computer Certification | Apple Certified Systems Administrator - |
| ACTC | Apple Computer Certification | Apple Certified Technical Coordinator - |
| ActiveMQ | Communications Protocols, Internet, Internet Protocols, Network Protocols | a message broker from Apache - a product, not an acronym. |
| AD | Organization | Retail Solutions Group - |
| AD | NCR Marketing | Account Director - |
| ADE | Engineering | Application Development Environment - |
| ADEC | National Science Foundation | American Distance Education Consortium - check out AISEP on the internet. |
| ADM | Engineering | Amp Disk Module - |
| ADO | Software Engineering | Active Data Objects (Microsoft) - |
| ADSL | Network Protocol | Asymmetric Digital Subscriber Line - |
| AEP | Apple Networking | AppleTalk Echo Protocol - |
| AES | Networking Encryption | Advanced Encryption Standard - a (more) secure 256-bit encryption standard from NIST |
| AES-CCMP | Networking Encryption | Advanced Encryption Standard - Counter Mode CBC-MAC Protocol - a secure 256-bit encryption standard from NIST designed specifically for wireless networks. |
| AFI | OSI Network | Authority and Format Identifier - one byte in a NSAP |
| AFM | Engineering | Automated Fault Management - |
| AFP | Apple, Macintosh, Networking | Apple Filesharing Protocol - A network file-sharing protocol; the successor to AppleTalk |
| AFR | ATI, Computer Gaming, Computer Graphics, Computer Video, NVidia | Alternative Frame Rendering - |
| AFS | Data Storage | Andrew File System - A scalable, distributed file system available from Transarc |
| AH | Networking | Authentication Header - used in IPSec, largely for historical reasons |
| AH-ESP | Networking | Authentication Header - Encapsulating Security Payload |
| AICPA | Standards Organizations | American Institute of Certified Public Accountants - |
| AIN | NANP, NPAC, Telecommunications Architectures | Advanced Intelligent Network - |
| AISEP | National Science Foundation | Advanced Internet Satellite Extension Project - an NSF project under the American Distance Education Consortium |
| AIX | IBM, Operating Systems | Advanced Interactive eXecutive - IBM's UNIX-like operating system |
| aka | Common Abbreviations | Also Known As - |
| ALCS | International Business Machines | AirLine Control System - an IBM TPF solution for airline ticketing |
| AM | Networking, Radio | Amplitude Modulation - adding a signal (information) to a (radio frequency) carrier by varying the strength or power of the carrier. |
| AMC | Hardware Engineering | ASIC Memory Controller - |
| AMD | Chips, Computers, CPU, PC, Processors, Semiconductors | Advanced Micro Devices - the original name, although AMD may be the current name. |
| AMP | NCR Management | Advanced Management Program - |
| AMP | NCR 5100, NCR Teradata | Access Module Processor - |
| AMPS | Cell Phones, Mobile Phones, Telecommunications | Advanced Mobile Phone Service - |
| AMQP | "chips", "chips", Access | Advanced Message Queuing Protocol - |
| ANI | Telephony Engineering | Automatic Number Identification - provides incoming caller's number at time of call or on monthly bill |
| ANN | Artificial Intelligence | Artificial Neural Network - |
| ANSI | Engineering Specifications | American National Standards Institute - |
| ANSIR | US Federal Bureau of Investigation | Awareness of National Security Issues and Response program, a federal information initiative. - |
| AON | Application Layer, Networking | Application-Oriented Networking - a Cisco software product that uses IOS |
| AP | Networking | Access Point - |
| AP | Software Engineering, UNIX | Application Processor - |
| AP | Telephony Engineering | Adjunct/Applications Processor - a computer connected to a telephone switch which provides additional capability |
| APC | Computer Controlled Machine Tools | Automated Pallet Cell - |
| API | Engineering | Applications Programming Interface - |
| APL | Software Engineering | Applications Programming Language - |
| APL | Programming Languages | A Programming Language - a specific programming language characterized by functions which have character stream input and output |
| APOP | Networking | Advanced Peer-to-Peer Network - |
| APP | Engineering | ?[found used with MPP but not translated] Associatively Parallel Processing? - |
| APPN | Telephony Engineering | Adjunct/Applications Processor - a computer connected to a telephone switch which provides additional capability |
| APS | IBM Mainframe Systems | Accounts Payable System - |
| APT | Computer Numeric Control, Machine Tools | Automatic Programmed Tools - language used to program machine tools |
| ARC | NCR Teradata Administration | ARchive ReCovery - |
| ARE | Engineering | Active Redundancy Environment - |
| area | Networking | a sub-domain; a well-defined subdivision of a domain - |
| ARG | Internet Gaming | Alternate Reality Game - |
| ARI | Marketing | Area Ready to Install - an area (Europe, North America, etc.) which has support in place for system installations. |
| ARLL | Disk Drives | Advanced Run Length Limited - see RLL. Enhanced RLL scheme allows limiting runs of zeros to 1 to 7 or 3 to 9. More complex but more powerful than RLL. |
| ARP | Data Link Layer, Networking, TCP/IP | Address Resolution Protocol - - |
| ARS | Marketing | Area Ready to Sell - an area (Europe, North America, etc.) in which a product is ready to be sold |
| AS | Engineering | Administration Station - |
| AS/U | Product | [see ASU] - |
| AS2 | EDIINT, Electronic Data Interchange, IETF, S/MIME | Applicability Statement 1 - |
| AS2 | EDIINT, Electronic Data Interchange, IETF, S/MIME | Applicability Statement 2 - |
| ASAR | RADAR Electronics | Advanced Synthetic Aperture RADAR - |
| ASCI | US Government Development Programs | Accelerated Strategic Computing Initiative - |
| ASCII | Digital Data Encoding | American Standard Code for Information Interchange - |
| ASD | Software Engineering | Applications Status Display - |
| ASE | Marketing | Account String Expansion - |
| ASF | NCR Computer Marketing | Archive Storage Facility - |
| ASF | Multi-Media Formats | Advanced Streaming Format - |
| ASF | Software Engineering | ActiveX Streaming Format - |
| ASIC | Engineering | Application Specific Integrated Circuit - |
| ASMO | Electronic Media Engineering | Advanced Storage Magneto Optical - |
| ASMP | Computer Engineering | Asymmetric MultiProcessing - |
| ASN | SCSI II Standard Specification | ASynchronous event Notification - This function compensates for a deficiency in the original SCSI which did not permit a target to advise the initiator of asynchronous events such as a cartridge being loaded into a tape drive. |
| ASP | Apple Networking | AppleTalk Session Protocol - |
| ASP | Microsoft Products | Active Server Pages - a feature of MS IIS: a built-in scripting language |
| ASP | Telecommunications Industry | Applications Service Provider - |
| ASU | Product | Advanced Server for UNIX - (early NT) a product for UNIX which makes the system look like an NT server. |
| AT | IBM, Marketing, PC | Advanced Technology - as in PC AT, IBM PC AT or IBM AT, the next generation of IBM PC after the PC AT, it was released in 1984 |
| ATA | Computer Hardware, Hard Drives, IDE | AT Attachment - an enhancement of the IDE specification, "AT" probably comes from IBM "AT" type PC. |
| ATA | Internet Telephony, Skype, VoIP | Analog Telephone Adapter - |
| ATAPI | Engineering | AT Attachment Packet Interface - an enhancement of the IDE specification |
| ATL | Computer Systems Architecture, Engineering | Automated Tape Library - |
| ATL | Microsoft Software Development | Active Template Library - |
| ATM | Communications Protocol | Asynchronous Transfer Mode - |
| ATP | Apple Networking | AppleTalk Transaction Protocol - |
| ATR | Telecommunications | Attenuation to Cross-talk Ratio - |
| ATT | Corporations | American Telephone and Telegraph - better known as "AT&T" |
| AUI | NCR Parallel Server Engineering | Attachment Unit Interface - |
| AVI | Multi-Media Formats | Audio-Video Interleaved - |
| AVM | Marketing | Automatic Vending Machine - |
| AWC | Computer Controlled Machine Tools | Automated Work-Changer - |
| AWS | Engineering | Administrative WorkStation - |
| B |
| B2B | Business | Business to Business - |
| BA | Engineering | Battery - |
| BBC | Radio and Televison Broadcasting | British Broadcasting Corporation - |
| BBS | Engineering | Bulletin Board System - |
| BCC | NCR Organization | Business Critical Computing - |
| BDC | Networking | Backup Domain Controller - see also PDC |
| BDL | NCR Parallel Systems Engineering | BYNET Data Link - |
| BEAM | Robotics | Biology, Aesthetics, Electronics and Mechanics - |
| BGMP | Internet, Network Protocols, Session Layer, TCP/IP | Border Gateway Multicast Protocol - |
| BGP | Internet, Network Protocols, Routing, TCP/IP | Border Gateway Protocol - a TCP/IP inter-domain routing protocol which enables routers to exchange network reachability information. |
| BGP-4 | Internet, Network Protocols, Routing, TCP/IP | Border Gateway Protocol version 4 - |
| BI | Management | Business Information - |
| BI | Business, Business Computing | Business Intelligence - |
| BIOS | Engineering | Basic Input/Output System - |
| BIS | NCR Parallel Systems Engineering | BYNET Interconnect System - |
| Bisynch | communications Protocol (IBM, Legacy) | Binary Synchronous Protocol, a.k.a Multi-leaving - |
| BIU | NCR Parallel Systems Engineering | Battery Interface Unit - |
| BL | Telephony Engineering | Business Line - |
| BLM | NCR Parallel Systems Engineering | BYNET Link Manager - |
| blog | (not an acronym) Internet | short for "web log", an on-line journal usually with daily entries and often with more than one contributor. - |
| Bluetooth | Wireless Networks | wireless connection for cell phones, computer accessories - |
| BMCA | NCR Parallel Systems Engineering | BYNET Micro-Channel Adapter - |
| BNEP | Networking | Bluetooth Network Encapsulation Protocol - |
| BNU | Engineering | Basic Network Utilities - |
| BOC | Telecommunications | Bell Operating Company - aka RBOC a company formed as a result of the AT&T divestiture. |
| BOF, BoF | IETF | Birds-Of-a-Feather - used to describe groups of persons working on different projects who have a common interest in a project not their own. |
| BOM | Accounting | Bill Of Materials - |
| BOM | Management | Business Object Model - |
| BOOTP | Networking | BOOTstrap Protocol - |
| bot | Automation, Computer Programs | short for roBOT - a computer program or programmed machine which performs a repetitive process automatically. Usually the process is simple and easily understood. |
| BPI | Business Systems | Business Process Integration - see also EAI. |
| BPM | business operation | Business Process Management - |
| BPSK | Networking | BiPhase Shift Keying - |
| BRAN | Networking | Broadband Radio Access Network - |
| BREW | Cell Phones, Mobile Phones, Telecommunications, Telephony | Binary Runtime Environment for Wireless - a method of downloading applications, graphics and ringtones to CDMA mobile phones from a personal computer. A BREW component on the service provider's server can manage billing for downloads from the cellular network. Also see J2ME |
| BRG | NCR Meta-Organization | Business Resource Group - recognized within NCR as part of our commitment to creating and sustaining an environment in which everyone can achieve his/her full potential. |
| BRML | Internet, WWW | Business Rules Markup Language - |
| BRMS | Information Technology | Business Rules Management System, aka Rulebase or a Rule-Based System. - |
| BS | Telecommunications Engineering | Bell South - |
| BSS | Networking | Basic Service Set - (IEEE 802.11) |
| BTEQ | DataBase | Batch/Basic Teradata Query facility - |
| BTW | Electronic Mail Abbreviations | By The Way - |
| BYA16X | NCR Engineering | Bynet for up to 16 SMP - |
| BYA32X | NCR Engineering | Bynet for up to 128 SMP (release 2) - |
| BYA4P | NCR Engineering | Bynet for Eveready - |
| BYNET | NCR MPP Engineering | BanYan topology NETwork - used to connect multiple processor nodes in NCR MPP products |
| C |
| CA | Internet, Network Security | Certification Authority - a third party which issues and revokes certificates. |
| CA | Astronomy | Closest Approach to Earth - |
| CA | Engineering | Cable Adapter - |
| CAB | Engineering | Cabinet - |
| CAC | Asynchronous Transfer Mode | Connection Admission Control - |
| CAD | Computer Applications, Drafting | Computer Aided Design - |
| CAP | Encoding, Telecommunications | Carrier Amplitude Phase - |
| captcha | Computer Security, SPAM | Completely Automated Public Turing test to tell Computers and Humans Apart - a test which can easily be solved by humans but is extremely difficult, if not impossible, to be solved by a computer. Used to foil "spam bots" from harvesting email addresses from the web. |
| CAT5 | Networking | Category 5 - a standard for twisted pair cabling. |
| CBA-IBI | Software Engineering Institute | Capability maturity model Based Appraisal-Internal Process Improvement - |
| CBC | Networking Encryption | Cipher Block Chaining - an block encryption method in which each subsequent encrypted block is XOR'd with the previous block. |
| CBN | Engineering | Customer Business Needs - |
| CC-NUMA | Computer Architecture | Cache Coherent Non-Uniform Memory Access - |
| CCC | NCR Organizational | Closed Circuit Conference - a.k.a. a Wormhole, conference or the conference room which has an on-line closed circuit television connection to the same at another NCR site with the United States. |
| CCD | Solid State Devices | Charge-Coupled Device - |
| CCFL | LCD Panels, Manufacturing and Technology, monitors | Cold-Cathode Fluorescent Lamp - |
| CCI | NCR MPP Engineering | Complex Control Interface - |
| CCIA | Electronics Industry | Computer and Communications Industry Association - |
| CCITT | Engineering | International Consultative Committee for Telephony and Telegraphy - |
| CCK | Networking | Complimentary Code Keying - an IEEE802.11b modulation method |
| ccNUMA | Computer Architecture | cache coherent Non-Uniform Memory Access - |
| CCS | Telecommunications, Telephone Services | Common Channel Signaling - |
| CD | Audio/Music and Computer Engineering | Compact Disk - also used for CD-ROM |
| CD-R | Computer Engineering | Compact Disk Recordable - a WORM device |
| CDE | Software Standard | Common Desktop Environment - |
| CDF | Web Authoring, XML | Channel Definition Format - |
| CDMA | Cell Phones, Mobile Phones, Telecommunications | Code Division Multiple Access - |
| CDR | Computer Engineering | CD-ROM - |
| CDR | Telephony Engineering | Call Detail Recording - process which records the details of a telephone call |
| CDSA | Computer Security | Common Data Security Architecture - |
| CE | Culture, Organization | Customer Engineer (formerly, Field Engineer) - |
| CeBIT | Marketing | welt-CEntrum der Büro- und InformationsTechnik - world Center of Office and Information Technology |
| CEC | Engineering | Central Electronic Complex - |
| CEO | Management | Chief Executive Officer - |
| CESDIS | Technical Research | Center of Excellence in Space Data and Information Sciences - an organization operated by Universities Space Research Association under contract to the National Aeronautics and Space Administration. |
| CEU | NCR Marketing | Customer Evaluation Unit - |
| CFM | Marketing | Configuration File Management - |
| CFO | Organization | Chief Financial Officer - |
| CFS | Engineering | Cluster File System - |
| CFS | Organization | Customer Focused Solutions - |
| CFT | Organization | Customer Focus Team - |
| CGI | Web Authoring/DTP | Common Gateway Interface - |
| CHAP | Networking | Challenge-Handshake Authentication Protocol (also: MS-CHAP) - |
| CHS | Computer Hardware, Disks, Hard Drives | Cylinder-Head-Sector - aka LBA, a feature of EIDE (distinguishing it from IDE) which allows logical or virtual sector addressing. |
| CIAC | U.S. Department of Energy | Computer Incident Advisory Capability - |
| CICS | IBM Product | Customer Information Control System - |
| CIF | Solid-State/Hardware Engineering | Chip In FaBRication - |
| CIF | ATM, Telecommunications | Cells in Frames - ATM with variable length packets. Reduces ATM overhead from 25-35% to 5% |
| CIFS | Data Storage, Microsoft, Networking, Software | Common Internet File System - |
| CIGSS | Battlespace, Defense, Intelligence, Military, Security | Common Imagery Ground/Surface System - part of IMINT architecture. |
| CIO | | Chief Information Officer - the person responsible for the Information Technology of a company or corporation. |
| CIS | Organization | Customer Information Services - |
| CIT | NCR Firmware Engineering | Component Interoperability Testing - pronounced "sit", a testing milestone described as between unit test and FIT |
| CL | DCE RPC protocols | ConnectionLess - |
| CLASS | Telecommunications | Custom Local Area Signaling Services - premium services offered by CLECs and BOCs such as call forwarding, caller ID and automatic callback. |
| CLC | NCR 5100 | Cabinet Level Controller - |
| CLCA | Engineering | Closed Loop Corrective Action - |
| CLEC | Telecommunications Industry | Competitive Local Exchange Carriers - |
| CLI | Software Development | Call Level Interface - the syntax protocol used in programming language source or binary to call library subroutines, functions or system calls. |
| CLI | DEC Computers, RSX-11M Operating System | Command Language Interface - generic term. See definition below. |
| CLI | Linux, Operating Systems, Unix, Windows | Command Line Interface - the text-based command and applications interface usually used by typing text into a hardware text-based terminal (interface) or a window-simulated terminal or text window in a GUI environment. |
| CLI | Cellular Phones, Telecommunications, Telephones, VoIP | Calling Line Identifier - also known as the "Caller ID" service |
| CLIPS | Business Rules, Information Technology, NASA, OPS | C Language Interface for Production Systems. See also JESS, OPS - |
| CLNP | OSI Networking Protocol | ConnectionLess Network Protocol (ISO 8473) - |
| CLNS | OSI Networking Service | ConnectionLess Network Service - |
| CLP | Asynchronous Transfer Mode | Cell Loss Priority - |
| CME | Astronomy | Coronal Mass Ejection - |
| CMIC | NCR 5100 Engineering | Cabinet Management Interface Controller - a 486-based PC system used to configure and boot a 5100 and its RAID. Also known as the AWS Interface Module |
| CMIP | Network Protocol | Common Management Information Protocol - |
| CML | Web Authoring, XML | Chemical Markup Language - |
| CMM | Carnegie-Mellon Software Engineering Institute | Capability Maturity Model - |
| CMM | Computer Controlled Machine Tools | Coordinate Measuring Machine - |
| CMNS | OSI Networking Service | Connection-Mode Network Service - |
| CMOS | Semiconductor Chip FaBRication | Complimentary Metal Oxide Semiconductor - |
| CMS | Engineering | Conversational Monitoring System - |
| CMS | NCR Computer Engineering | Cable Management System - cabinet cabling kit required for LifeKeeper 35XX clusters; improves appearance, expandability. (feature kit# 4850-K795) |
| CMTS | Broadband | Cable Modem Termination System - a device in an ISP network for the distribution of broadband internet services. |
| CMVC | Software Development Tools (IBM) | Configuration Management Version Control - |
| CNAM | Telecommunications, Telephone Services | Caller id with a NAMe - |
| CNC | Computer Controlled Machine Tools | Computer Numeric Control - |
| CO | Telephony | Central Office - the local exchange |
| CO | DCE RPC protocols | Connection-Oriented - |
| CO | Telephony Engineering | Central Office - |
| COA | Microsoft, Software Piracy | Certificate of Authority - document which gives owner license to use software |
| COBIT | Information Technology | Control OBjectives for Information and related Technology - |
| COBOL | Business Computing | COmmon Business Oriented Language - |
| CODAR | Engineering | Central On-line Dispatch and Reporting system - |
| CODAR | Engineering | Central On-line Dispatch and Reporting system - |
| COFDM | Satellite Radio, Sirius, Telecommunications | Coded Orthogonal Frequency Division Multiplexing - |
| COM | Microsoft Development | Component Object Model - |
| CONP | OSI Networking Protocol | Connection-Oriented Network Protocol - (ISO 8208) is based on X.25 PLP |
| COO | Management | Chief Operating Officer - |
| COP | NCR Teradata Engineering | COmmunication Processor - |
| COPS | Application Layer, Internet, Network Protocols, TCP/IP | Common Open Policy Services - |
| COPS | Marketing | Computer Oracle and Password System - |
| CORBA | Software Engineering | Common Object Request Broker Architecture - |
| COTS | Buying, Electronic and Computer Military Components Marketing | Commercial Off The Shelf - See also GOTS, MOTS, NOTS, ROTS |
| CPCS | ATM Communications Protocol | Common Part Convergence Sub-layer - |
| CPCS | Aviation | Cabin Pressure Control System - |
| CPE | Telephony Engineering | Customer Premise Equipment - equipment on the customer's premises |
| CPM | Corporations, Information Technology | Corporate Performance Management - |
| CPTWG | CD & DVD Industry | Copy ProTection Working Group - |
| CPU | Engineering | Central Processing Unit - the integrated circuit (IC) or processor chip which executes the computer's instructions. |
| CRM | Information Technology | Customer Relationship Management - |
| CRT | Computer monitors, Television | Cathode Ray Tube - a "TV" picture tube, a vacuum tube used as a video screen in a television, computer monitor, etc. Named for the glowing electric cathode at the narrow end of the tube. |
| CRU | Engineering | Customer Replaceable Unit - |
| CRU | Computing Tariffs | Cray Resource Unit - Equivalent to 1 hour of Cray-1 time. CRU hours are CPU hours multiplied by two scaling factors: the Machine Charge Factor and the Class Priority Factor.[per Hans Cronander 8/30/2000] |
| CS | NCR Culture | Customer Service - |
| CS | ATM Communications Protocol | Convergence Sub-layer - |
| CSA | Microsoft Development | Component Services Architecture - Created in 1998 as a fusion of the Common Object Model Plus (COM+) and Microsoft Transaction Server (MTS) |
| CSD | Organization | Customer Service Division - |
| CSF | Organization | Customer Support Facility - |
| CSG | Organization | Computer Systems Group - |
| CSI | NCR 5100 Engineering | Complex Service Interface - |
| CSM | Disk Storage | Cluster Storage Management - |
| CSMA/CD | Networking | Carrier Sense Multiple Access/Collision Detection - |
| CSME | NCR LifeKeeper Publication | Configuring Multi-System Environments - |
| CSP | Marketing | Continuous Scaleable Processing - |
| CSR | Microprocessor or Board Engineering | Control and Status Register - |
| CSS | NCR Organization | Clerical Support Services - |
| CSS | Web Software Development | Cascading Style Sheets - |
| CSV | Databases, Information Technology, Text Files | Comma Separated Values - a text file format containing lines of data items separated by commas |
| CTD | Robotics | Conductivity, Temperature, Depth - a device used to measure geographic data in bodies of water |
| CTG | Engineering | IBM Channel Tailgate - |
| CTI | Telephony Engineering | Computer Telephony Interface - |
| CTI | Telephony Engineering | Computer Telephony Integration - |
| CTL | Engineering | Disk Controller (JBOD or Disk Array) - |
| CTO | Organization | Chief Technical Officer, Corporate Technical Officer - |
| CU | UNIX commands | Call Unix - |
| CUA | Engineering | Channel Unit Address - |
| CVD | Solid State Device Engineering | Chemical Vapor Deposition - |
| CW | NCR Hardware/Firmware Engineering | Configuration Wizard - software which configures the hardware |
| CXO | Corporate Organization, Corporations | Chief "any" Officer - a generic term for company or coporate officers. |
| D |
| DA | Networking | Directory Agent - a network service that acts as a central repository for service location information |
| DA | Engineering | Disk Array - |
| DAC | Engineering | Disk Array Controller - |
| DAC | Access Control, Security | Discretionary Access Control - |
| DAC | System Security | Discretionary Access Control - |
| DAC | Solid State Devices | Digital to Analog Converter - |
| DAD | Networking | Directory Agent Discovery - process by which network services are discovered and registered |
| DAD | Document Imaging | Document Analysis and Design - |
| DAL | Telephony Engineering | Dedicated Access Line - |
| DAML | Business Rules, DARPA | DARPA Agent Markup Language - |
| DAO | Microsoft | Direct Access Object - a feature of the Microsoft ODBC standard |
| DAP | Product | Disk Array Plus - |
| DAR | Hardware | Digital-to-Analog Converter - |
| DARO | Battlespace, Defense, Intelligence, Military, Security | Defense Air Reconnaissance Office - now known as DCGS |
| DARPA | Defense, Internet, US Government | Defense Advance Research Projects Administration - |
| DAS | Engineering | Dual Attached Station - |
| DASD | Data Storage | Direct Access Storage Device - usually a collection of hard disks with a RAID controller |
| DB | DataBase Engineering | Data Base - |
| DBA | DataBase Engineering | Database Administrator - |
| DBC | Computer Engineering | 3600 Parallel Database Computer - |
| DBF | Databases, Information Technology | DataBase File - |
| DBI | PERL; DataBase/Software Engineering | DataBase Interface - |
| DBList | Computer Engineering | Data Block Descriptors List - |
| DBMS | Computer System Engineering | DataBase Management System - |
| DBS | Engineering | Database Software - |
| DC | Electrical Engineering | Direct Current - |
| DCAM | Digital Electronics | Digital CAMera - |
| DCAP | Data Link Layer, Internet, Network Protocols, TCP/IP | Data link switching Client Access Protocol - |
| DCB | Engineering | Disk Cache RAM Board - |
| DCC | Engineering | DC-to-DC Converter - |
| DCE | Computer Systems | Distributed Computing Environment - |
| DCE | Networking | Data Communications Equipment - |
| DCE | Hardware Engineering | DC - to - DC Converter |
| DCGS | Battlespace, Defense, Intelligence, Military, Security | Distributed Common Ground Space - formerly DARO - a military intelligence system integrating information of various types and sources. |
| DCHP | Internet Protocol | Dynamic Host Configuration Protocol - |
| DCL | DEC Computers, RSX-11M Operating System | Digital Command Language - commands that can be typed in on a PDP-11 terminal. |
| DCOM | Microsoft | Distributed Common Object Model - a specification based on DCE intended to replace OLE |
| DCR | Software Engineering | Disk Cache RAM - |
| DCRAM | Engineering | Disk Cache Random Access Memory - |
| DD/D | Marketing | Data Dictionary / Directory - |
| DDE | Engineering | Dynamic Data Exchange - |
| DDII | OS Engineering | Dump/Express Disk I/O Interface - |
| DDL | Engineering | Data Definition Language - |
| DDP | (Apple) Networking | Datagram Delivery Protocol - |
| DDR | Computer Memory Technology, SDRAM, Solid State Devices | Double Data Rate - |
| DEC | Computer Manufacturers | Digital Equipment Corporation - |
| DELTT | Solid State Technology - Sandia Labs | Double Electron Layer Tunneling Transistor - the first quantum mechanical transistor invented at Sandia National Labs in 1998 |
| DEN | Networking | Directory Enabled Network - |
| DES | Network Engineering | Data Encryption Standard - usually a 56-bit encryption (see 3DES{href=#3DES}) |
| DFD | Information Technology | Data Flow Diagram - |
| DFM | Computers, Manufacturing | Demand Flow Manufacturing - |
| DFP | Displays, monitors | Digital Flat Panel - |
| DFS | Engineering | Design For Stage-ability - |
| DFS | Data Storage, Networking | Distributed File System - |
| DHCP | Internet, Network Layer, Network Protocols, TCP/IP | Dynamic Host Configuration Protocol - |
| DHTML | Web Authoring | Dynamic Hyper-Text Markup Language, an extension of HTML - |
| Diameter | Internet, Network Protocols, Session Layer, TCP/IP | A protocol designed to replace RADIUS, overcoming the RADIUS deficiencies in authentication, authorization and accounting (AAA). - |
| DIHA | NCR 5100 | Diagnostic Interface Host Adapter - |
| DikuMUD | Computer Games | a specific type MUD (Multi-User Dungeon) in which users are restricted to modifying objects which are a fixed part of the game. See MUD. - |
| DIM | Engineering | Diagnostic Interconnect Module - |
| DIN | Standards Organizations | Deutsche Institut fuer Normung - (German Institute for Standards) |
| DIP | Chip Types, Solid State Device Packaging | Dual In-line Package - rectangular chip with pins on the two longer sides of the package. Fits in a socket or has round leads which are wave-soldered to the printed circuit board. |
| DIPS | Telecommunications, Telephone Services | Database Inquiry by a Phone Switch [ a guess on my part] - local phone switch query to a remote database |
| DIS | Internet, Network Protocols, Session Layer, TCP/IP | Distributed Interactive Simulation - |
| DIS | Standards Committees | Draft International Standard - |
| DISP | Standards Committees | Draft International Standardized Profiles - |
| DLAN | Engineering | Diagnostic Local Area Network - |
| DLC | Networking | Data Link Control Protocol - |
| DLL | MS Windows Technology | Dynamic Link LiBRary - |
| DLM | Software Product for Oracle Databases | Distributed Lock Manager - |
| DLP | Security | Data Leak Prevention - |
| DLT | Hardware Device Type | Digital Linear Tape - |
| DMA | Computer Engineering | Direct Memory Access - |
| DMARC | Internet, Networking, Telecommunications | DeMARCation point - the customer's interface point (connector) to a high-speed telecommunications service. This may be the same as the MPOE or it may be a point inside the customer's property where the customer connects the service to his equipment. Stringing a cable from the MPOE to the DMARC is called "extending the DMARC" or a "DMARC extension." |
| DMCA | NCR MicroChannel Architecture | Dual MicroChannel Adapter - The subsystem which combines the primary and secondary MCA backplane into a single 16-slot architecture |
| DMI | Engineering | Desktop Management Interface - |
| DMP | DEC Computers, RSX-11M Operating System | File Dump Program - a utility that dumps files in hexadecimal, octal, decimal or ASCII formats. |
| DMP | IBM, Operating System Architecture | Distributed Memory Processor - a computer architecture that shares memory over a high-performance switch or a LAN |
| DMS | Document Imaging | Document Management System - |
| DMS | Dell Certifications, Dell Computer Services, Dell Computers | Dell Managed Services - |
| DMTF | Internet Telephony, Telecommunications, VoIP | Dual-Tone Multi-Frequency - this is the technical adjective for telephone "touch tones". |
| DNC | Automated Machines (Manufacturing) | Direct Numerical Control - |
| DNS | Internet, Network Protocols, Session Layer, TCP/IP | Domain Name Service(s) - |
| DNSBL | Internet, Network Protocols, Session Layer, TCP/IP | Domain Name Service Black-hole List - list of domain names used by known spammers. |
| DOCSIS | Networking, Telecommunications | Data Over Cable System Interface Specification - |
| DOE | US Government Departments | Department of Energy - |
| DOM | SGML, Web Authoring | Document Object Model - |
| domain | OSI Networking | any portion of an OSI network under a common administrative authority (Paquet & Teare) - |
| DOS | Engineering | Disk Operating System - usually for a PC, and usually MSDOS |
| DP | Computer Engineering | Diagnostic Processor - |
| DPbus | Computer Engineering | Display Panel bus - |
| DPC | Telecommunications, Telephone Services | Destination Point Code - a field in a routing packet that gives the destination of the CCS/SS7 signaling message. |
| DR | Software Engineering | Dynamic Recompiling - |
| DRAM | Computer Memory Technology, RAM, Solid State Devices | Dynamic Random Access Memory - |
| DRDA | International Business Machines | Distributed Relational Database Architecture - |
| DRE | Engineering Process | Defect Removal Efficiency - |
| DRM | Engineering | DOS RAID Manager - |
| DRM | Computers, Copyrights, Digital Media, Internet, Napster, Politics | Digital Rights Management - |
| DRT | NCR Culture | Development Realization Team - |
| DSA | Engineering | Data Striping without Parity - |
| DSK | Engineering | Disk - |
| DSL | Telecommunications Engineering | Digital Subscriber Loop - |
| DSLAMs | Telecommunications Engineering | Digital Subscriber Line Access Modules - |
| DSP | Microsoft Marketing | Delivery Service Partner - |
| DSP | Signal Processing | Digital Signal Processor - |
| DSP | Asynchronous Transfer Mode, ATM, Networking | Domain Specific Part - a part of an NSAP consisting of a HODSP, system-ID and NSEL. |
| DSP | Dell Certifications, Dell Computer Services, Dell Computers | Dell Service Provider - |
| DSS | Database Technology | Decision Support Systems - |
| DSSSL | SGML, Web Authoring, XML | Document Style Semantics and Specification Language - |
| DSTN | LCD Panels, Manufacturing and Technology, monitors | Dual-scan Super Twist Nematic or Dual-scan STN - |
| DSTP | Database Networking | Data Space Transfer Protocol - |
| DSU | NCR Teradata Engineering | Disk Storage Unit - |
| DTD | Web Authoring | Document Type Definition, related to SGML - |
| DTE | Networking | Data Terminal Equipment - |
| DTMF | Telecommunications Engineering | Dual Tone Multi-tone Frequency - |
| DTP | Systems Engineering | Distributed Transaction Processing - |
| DTP | Consumer Marketing | DeskTop Publishing - |
| DTR | Serial Communications | Data Terminal Ready - |
| DUL | Marketing | Dump Unload and Load - |
| DVD | Recording Engineering | Digital Versatile Disk; formerly Digital Video Disk - |
| DVD-A | Recording Engineering | Digital Versatile Disk Minus Audio - Audio: an audio format recorded on DVD. Competes with SACD. |
| DVD-R | Recording Engineering | Digital Versatile Disk Minus Recordable - a DVD recorder or recordable DVD format. Records 4.7GB at a 650nm wavelength but does not include copy protection. Competes with DVD R. |
| DVD-ROM | Computer Engineering, Recording Engineering | Digital Versatile Disk - Read Only Memory - A DVD recorder (computer hardware) or a recorded DVD or a DVD which can be recored once, same as a DVD-R and similar to a CD-R{href=#CD-r} Technically a general recording form called a WORM{href=#WORM}. |
| DVD-RW | Recording Engineering | Digital Versatile Disk Minus ReWritable - A DVD recorder or recordable DVD format. Records 4.7GB at a 650nm wavelength but does not include copy protection. Competes with DVD R. |
| DVMRP | Internet, Network Layer, Network Protocols, TCP/IP | Distance Vector Multicast Routing Protocol - |
| DWA | Wireless Networking, WUSB | Device Wire Adapter - |
| E |
| E.164 | Telecommunications Standards | ITU-T ISDN telephone numbering standard - |
| E1 | Telecommunications Standards | European level 1 Time Division Multiplexing (TDM) standard, 2.048 megabits/second - |
| E3 | Telecommunications Standards | European level 3 Time Division Multiplexing (TDM) standard, 34 megabits/second - |
| E4 | Telecommunications Standards | European level 4 Time Division Multiplexing (TDM) standard, 139 megabits/second - |
| E4X | ActionScript, Computer Languages, JavaScript, XML | ECMAScript for XML - |
| EA | Marketing | Ease Advantage - |
| EAI | Software Engineering | Enterprise Application Integration - |
| EAP | Networking | Extensible Authentication Protocol - |
| EBCDIC | Information Interchange | Extended Binary Code Decimal Interchange Code - |
| EBT | Commerce | Electronic Banking Transfers - |
| EC | Computer Industry | Electronic Commerce - |
| ECA | SCSI Standard/Specification | Extended Contingent Allegiance - This extends the utility of the Contingent Allegiance state for an indefinite period during which the initiator that received the error can perform advanced recovery algorithms. |
| ECC | Solid State Engineering | Error Checking and Correcting - used to describe Random Access Memory |
| ECMA | Computer Industry | European Computer Manufacturers Association - |
| ECMA-262 | Computer Industry Standards | ECMAScript-262 - a standard with the objective of unifying JavaScript and JScript. |
| ECMAScript | Computer Industry Standards | ECMAScript - a standard with the objective of unifying JavaScript, JScript and ActionScript (Macromedia Flash.) |
| ECML | World Wide Web | Electronic Commerce Modeling Language - |
| ECOE | Software Engineering | Enterprise Client Operating Environment - |
| ECTF | Telephony Engineering | Enterprise Computer Telephony Forum - an international CTI standards consortium |
| EDA | Information Technology | Electronic Document Access - |
| EDAC | Engineering | Error Detection and Correction - |
| EDGE | Cellular Phones, Mobile Phones, Telecommunications, Wireless Networks | Enhanced Date rates for GSM Evolution - |
| EDI | IETF, Software Engineering | Electronic Data Interchange - |
| EDI | DEC Computers, RSX-11M Operating System | Editor - a line - and (ASCII) character - based editor. |
| EDIINT | IETF, Software Engineering | Electronic Data Interchange INTernet - |
| EDW | Marketing | Enterprise Data Warehouse - |
| EFF | Internet | Electronic Frontiers Foundation - An organization (q.v., at www.eff.org) promoting online/electronic rights such as free speech, privacy, etc. |
| EFI | BIOS | Extensible Firmware Interface - a specification for motherboard firmware promoted by Intel and Microsoft designed to replace, or control the proliferation of, independent motherboard BIOS design. |
| EFS | Data Storage | Encrypting File System - |
| egcs | GNU / Free Software Foundation | Experimental GNU Compiler System - |
| EGP | Internet Protocol | Exterior Gateway Protocol - a TCP/IP extra-domain routing protocol |
| EGP | Internet, Network Protocols, Routing, TCP/IP | Extended Gateway Protocol - |
| EHS | Business Rules, Programming | Else Hand Side - the (program) code executed when there is an exception to the application of a business rule or "if" statement. See also RHS, LHS. |
| EIA | Industry | Electronic Industries Association - |
| EIDE | Disk Drives | Enhanced Integrated Drive Electronics - an extension of the IDE. |
| EIF | Organization | Enterprise Information Factory - |
| EIGRP | Internet, Network Protocols, Routing, TCP/IP | Enhanced Interior Gateway Routing Protocol (CISCO Proprietary) - |
| EISA | Computer Hardware Engineering | Extended Industry Standard Architecture - a bus (adapter/card/board connector/slot) specification. Others are ISA, PCI, NUBUS. |
| EISM | NCR LifeKeeper Systems Engineering | External Interface Server Management - a single server management API for both UNIX and Windows NT. |
| EITO | Marketing | European information Technology Observatory - |
| EJB | Java Software Development | Enterprise Java Beans - |
| EL | LCD Panels, Manufacturing and Technology, monitors | ElectroLuminescent - |
| ELC | Marketing | Entry Level Computer - |
| ELS | Marketing | Entry Level Server - |
| ELS | NCR Organization (1997) | Entry Level Servers - |
| EMA | Networking Industry | Electronic Messaging Association - |
| EMF | Electrical Engineering | Electro-Motive Force - |
| EMF | Microsoft | Enhanced MetaFile spooling architecture - |
| EMS | Cellular Phones, Email, Mobile Phones, Networks, Telecommunications, Text Messaging | Electronic Messaging Service - |
| ENV | Engineering | Environmental Board - |
| EOS | Hardware Engineering | E (E.M.F.-voltage) Over Specification - a fault due to too high voltage |
| EPIC | Intel Microprocessors | Explicitly Parallel Instruction Computing - |
| EPM | Desk Top Publishing | Engineering Program Management - |
| EPMS | Desk Top Publishing | Electronic Publishing Management System - |
| EPO | NCR 5100 | Emergency Power Off - |
| EPS | Graphic File Format | Encapsulated Post Script - originated by Adobe Systems |
| ERD | Enterprise, Industry | Entity Relationship Diagrams - |
| ERP | Enterprise, Industry | Enterprise Resource Planning - high level applications which do this (PeopleSoft, SAP) |
| ES-IS | OSI Network Routing Protocol | End System to Intermediate System (ISO 9542) - |
| eSATA | Computer Hardware, Hard Drives | external SATA, external Serial ATA - a specification for attaching hard drives to motherboards by means of a (copper) wire cable. |
| ESB | Business Computing, Business Systems | Enterprise Service Bus - |
| ESD | Organization | Enterprise System Division - |
| ESD | Engineering | Electrostatic Discharge - |
| ESH | OSI Network Routing Protocol | End System Hello - a packet sent by an End System (see ES-IS) |
| ESL | Retail Store Computing | Electronic Shelf Labeling - |
| ESP | Networking | Encapsulating Security Payload - used in IPSec |
| ESP | Management, Organization | External Service Provider - a job shop or contracting company who may also provide services from a foreign country. |
| ESP | SIIPS | Entry Processing Unit - |
| ESPU | SIIPS | Entry Processing and Sort Unit - |
| ESS | NCR Organization | Enterprise Support Service - |
| ESU | SIIPS | Encode and Sort Unit - |
| ET | Engineering | Exception Trace - |
| ETL | Engineering Organization | Engineering Team Leader - |
| EULA | Microsoft Licensing | End User LIcense Agreement - |
| EV-DO | Radio Telephony, Wireless Networking | EVolution - Data Optimized - a 3rd Generation CDMA technology, aka "2.5G" offering faster voice and data speeds than 1xRTT . |
| EVMS | Computer Engineering, Linux, Unix | Enterprise Volume Management System - software that causes any number of physical hard drives to be used as one or more virtual disks, often in a RAID configuration. |
| F |
| FA | Software Product | Feature Audit - |
| FA | Engineering | Failure Analysis - |
| FACE | Software Product | Framed Access Command Environment - |
| FANP | Application Layer, Internet, Network Protocols, TCP/IP | Flow Attribute Notification Protocol - |
| FAST | 1997, NCR Organization | Feature Audit Tools and Systems - a department under GPS, General Purpose Systems |
| FAT | Windows OS | File Allocation Table - |
| FC | Network Engineering | FiBRe Channel - |
| FC-AL | Network Engineering | FiBRe Channel - Arbitrated Loop |
| FCC | US Government | Federal Communications Commission - |
| FCLC | Network Engineering | FiBRe Channel Loop Community - manufacturers of FC related hardware and software |
| FCP | Data Storage Engineering | Fiber Channel Protocol - protocol to transfer data from storage to CPU; NOT FireWire! |
| FCS | DEC Computers, RSX-11M Operating System | File Control Services - a set of commands and libraries to control PDP-11 files, especially ISAM files. |
| FDDI | Engineering | Fiber Distributed Data Interface - |
| FDIS | Standards Committees | Final Draft International Standard - |
| FDK | Engineering | Flexible Disk - |
| FDM | Telecommunications | Frequency Division Multiplexing - |
| FE | Organization | Chief Executive Officer - |
| FEE | Encryption Algorithms | Fast Elliptic Encryption - |
| FEEPROM | Computer Engineering | Flash Electrically Erasable and Programmable Read Only Memory - |
| FEP | Engineering | Front-End Processor - |
| FEU | NCR 5100 | Front End Unit - in a Series 5100 cabinet converts input AC power to approximately 56 Volts DC for distribution to other subsystems. |
| Finger | Application Layer, Internet, Network Protocols, TCP/IP | User Information Protocol - |
| FIT | Engineering Process | Feature Integration Test - |
| FLOPS | Computer Engineering | FLoating-point Operations Per Second - |
| FLX | DEC Computers, RSX-11M Operating System | File Transfer Program - a utility program that copies files to and from different file formats. |
| flyback | CRTs, Electronics | a flyback transformer - see LOPT |
| FM | Electronics, Radio | Frequency Modulation - a method of radio broadcasting which uses an audio frequency (ususally) to vary (modulate) the transmission carrier frequency. |
| FMLI | Software Product | Form and Menu Language Interpreter - |
| FMS | Engineering | Fault Management System - |
| FoIP | FAX, Internet, T38, Telephony, VoIP | FAX over Internet Protocol - FAX over the internet equivalent of VoIP |
| FOMA | Radio Telephony, Wireless Networking | Freedom Of Mobile multimedia Access - a third generation cellular network used in Japan based on W-CDMA and compatible with UTMS . |
| FOSS | Computer Software, Computers | Free and Open Source Software - |
| FPGA | Integrated Circuit Engineering | Field Programmable Gate Array - |
| FQDN | Networking | Fully Qualified Domain Name - |
| FRE | Organization | Feature Realization Engineer - |
| FRO | NCR Product Engineering | Field Retrofit Option - |
| FRS | Marketing | Fault Resilient Systems, implies better than 99.99% availability - |
| FRS | Organization | Fault Resilient Systems [archaic, now High Availability] - |
| FRSTN | LCD Panels, Manufacturing and Technology, monitors | Fast Response Super Twist Nematic or Fast Response STN - |
| FRU | Engineering | Field Replaceable Unit - |
| FRU | Engineering Support | Field Retrofit Update (also called a kit) - |
| FSAA | Video Processing | Full-Scale Anti-Aliasing - |
| FSG | Corporate Organization | Financial Systems Group - |
| FSTN | Black and White LCD Panels, Manufacturing and Technology, monitors | Film-compensated Super Twist Nematic or Fast Response STN Filtered Super Twist Nematic or Fast Response STN Formulated Super Twist Nematic or Fast Response STN - |
| FT | Marketing | Fault Tolerant, implies better than 99.9999% availability - |
| FTAM | Engineering | File Transfer, Access, and Management - |
| FTL | Engineering Organization | Feature Team Leader - |
| FTP | Application Layer, Internet, Network Protocols, TCP/IP | File Transfer Protocol - |
| FTP | Telecommunications | Foil Twisted Pair - |
| FUD | Marketing (any competitive industry) | Fear, Uncertainty and Doubt - |
| FW | Hardware Engineering | FirmWare - |
| FXO | Internet Telephony, Telecommunications, VoIP | Foreign eXchange Office - the telephone jack on a telephone that accepts a plug from a telephone cord. |
| FXS | Internet Telephony, Telecommunications, VoIP | Foreign eXchange Subscriber - the POTS telephone jack (usually on the wall) which accepts the plug on one end of a telephone cord. |
| G |
| GB | Computer Industry | GigaByte - technically equal to 1,073,741,824 (1024*1024*1024) bytes, 1024MB(MegaBytes) or 1,048,576KB(KiloBytes); less formally, 1,000,000,000 bytes, 1000MB or 1,000,000KB |
| GBIC | Networking | GigaBit Interface Converter - a plug-in device to connect a fiber-optic interface with ethernet. |
| GCA | Engineering Process | General Customer Availability - |
| GCS | NCR Marketing | Guaranteed Customer Satisfaction - |
| GDDR | Computer Memory, Solid State Devices | Graphics Double Data Rate - |
| GDI | Microsoft Architecture | Graphic Device Interface - |
| GDM | Linux, Open Source | GNOME Display Manager - |
| GDS | Information Technology | Global Distribution System - an organization with global distribution of goods or services such as a large bank |
| GEMS | Waste Management | Groundwater and Environmental Monitoring System - |
| GEMS | Medical Instrumentation | General Electric Medical Systems - |
| GHR | NCR Organization | Global Human Resources - |
| GIF | Graphics File Formats | Graphics Interchange Format - |
| GIMP | Graphics File Formats | Gnu Image Manipulation Program - also see GNU |
| GIS | Organization | Global Information Solutions - |
| GLONASS | Global Positioning Systems | Global Navigation Satellite System (Russian) - |
| GMR | Magnetic Recording Industry | Giant Magneto-Restrictive - |
| GNOME | Software Industry/Free Software Foundation | GNU Network Object Model Environment - |
| GNU | Software Industry/Free Software Foundation | Gnu is Not Unix - |
| GOTS | Buying, Electronic and Computer Military Components Marketing | Government Off The Shelf - See also COTS, MOTS, NOTS, ROTS |
| GPCGSC | 1997, NCR Organization | General Purpose Computing Global Support Center - |
| GPL | Software Engineering | Graphical Programming Language - |
| GPO | Microsoft Windows Security | Group Policy Object - |
| GPS | 1997, NCR Organization | General Purpose Systems - |
| GPS | 1997, NCR Organization | General Purpose Systems - |
| GRP | NCR Culture | Global Realization Process - |
| GRT | NCR Culture | Global Realization Team - |
| GSC | Organization | Global Support Center - |
| GSM | Cell Phones, Mobile Phones, Telecommunications, Telephony | Global System for Mobile communications - "Global Satellite Mobility" |
| GSS | Battlespace, Defense, Intelligence, Military, Security | Ground- and Surface-based Systems - |
| GUI | Engineering | Graphical User Interface - |
| H |
| H-OSA | Multi-Media, Networking, Services, Telephony | High-level Open Service Architecture - |
| H.323 | Internet Communications, Microsoft NetMeeting, Networking, VoIP | H.323 - an ITU standard based on the IETF RTP and RTCP protocols. H.323 is a very flexible protocol that allows the exchange of data, video and audio over networks that have an indeterminant quality of service. Two applications of this protocol are VOIP and Microsoft's NetMeeting. For VOIP, H.323 is not as NAT friendly as IAX . H.323 provides QoS monitoring and is good at video conferencing. |
| h2g2 | blogs, Internet Gaming, odd stuff (not an acronym), slang | A BBC website inspired by the book "The HitchHiker's Guide to the Galaxy" by Douglas Adams. In 2006, the website was http://www.bbc.co.uk/dna/h2g2 . - |
| h4x0r | Internet Gaming, slang | [not an acronym] hacker - an unconscionable interactive game player. |
| HA | Computer Systems | [rare] Host Adapter - |
| HA | Marketing | High Availability, implies better than 99.9% availability - |
| HAL | Operating Systems and Computer Architecture | Hardware Abstraction Layer - |
| HASE | Organization | High Availability Software Engineering - |
| HATP | Organization | High Availability Transaction Processing - |
| HCB | Microsoft | Hardware Compatibility Test - as in HCL list, a list of hardware with which NT is compatible or vice versa |
| HCT | Engineering | Software Development (or Developer's) Kit - |
| HDA | Disk Drives | Head Disk Assembly - |
| HDD | Disk Drives | Hard Disk Drive - |
| HDLC | Network Communications Protocol | High-level Data Link Control - a derivative of SDLC used by PPP (Point-to-Point Protocol) |
| HEN | Engineering | Hardware ENabler - |
| Hi8 | Motion Picture Engineering | an enhances 8mm video cassette standard - |
| HIPAA | Employment Law | Health Insurance Portability and Accountability Act - |
| HIPPI | Networking | High Performance Parallel Interface - |
| HITC | NCR Organization | Human Interface Technology Center - |
| HMC | Computer Controlled Machine Tools | Horizontal Machine Center - |
| HMI | Software Design | Human Machine Interface - |
| HODSP | Networking | High-Order Domain-Specific Part - part of a NSAP which defines the area of the domain |
| HPC | SuperComputers | High Performance Computer - |
| HPS | Computer System Architecture, IBM | High Performance Switch - a method of connecting computers running in parallel. |
| HQL | NCR Computer Engineering | Hardware Qualification List - |
| HRFWG | Home Device Engineering | Home Radio Frequency Working Group - |
| HSDPA | Radio Telephony, Wireless Networking | High Speed Downlink Packet Access - a 3rd Generation technology associated with W-CDMA and GSM technologies and may also compete with WiMAX . |
| HSI | Engineering | High Speed Interconnect (YNet) - |
| HSM | Data Storage | Hierarchical Storage Management - |
| HSRP | Internet, Network Protocols, Routing, TCP/IP | (Cisco) Hot Standby Router Protocol - |
| HTML | Web Authoring | Hyper-Text Markup Language, a DTD or application of SGML - |
| HTTP | Application Layer, Internet, Network Protocols, TCP/IP | Hyper Text Transfer Protocol - |
| HTTP-NG | Internet Protocol | Hyper Text Transfer Protocol - Next Generation - a not very original name for the second phase of World Wide Web development from W3C which features machine to machine communication over the Web |
| HWA | Wireless Networking, WUSB | Host Wire Adapter - |
| I |
| i.LON | Echelon Corporation | a name for an internet server - |
| I/O | Computer Industry | Input-Output - |
| i2o | Computer Input/Output | Intelligent Input/Output - |
| IA | Artificial Intelligence, Computers, Programming | Intelligent Agent - |
| IA | Embedded Systems, Sun | Information Appliance - |
| IA-64 | Intel Microprocessors | Intel-Architecture - 64, a 64-bit architecture manifested in the "Merced" CPU chip |
| IAC | Microsoft | Inter-Application Communication - |
| IAL | Intel Corporation | Intel Architecture Lab - Intel's computer architecture lab located in Hillsboro, Oregon |
| IAX | Internet Protocols, VoIP | Inter-Asterisk eXchange - an extremely flexible, NAT - friendly internet protocol for VoIP. A second version is also known as "IAX2". |
| IBM | Computer Manufacturers | International Business Machines, Inc. - usually "IBM" |
| IBRP | Product Process | Integrated Business and Realization Plan - |
| IC | Microsoft Exchange | Integrated Circuit - a "chip" or electronic logic device consisting of a few or many transistors or gates. |
| ICA | Computer Terminals | Intelligent Console Architecture - |
| ICDA | Disk Arrays, RAID | Integrated Cache Disk Array - |
| ICI | Product Engineering | Initial Customer Installation - |
| ICL | DEC Computers, RSX-11M Operating System | Indirect Command Language - A language framework using "go to on status" for DCL and MCR commands. |
| ICMP | Internet, Network Layer, Network Protocols, TCP/IP | Internet Control Message Protocol - used primarily for the ping command (RFC792) |
| ICMPv6 | Internet, Network Layer, Network Protocols, TCP/IP | Internet Control Message Protocol - version 6 |
| ICP | DEC Computers, RSX-11M Operating System | Indirect Command Processor - software that allows the execution of the Indirect Command Language |
| ICP | Telephony Engineering | Intelligent Call Processing - ability of an ACD to route a call based on a caller database |
| ICSI | NCR Parallel Systems Engineering | Integrated Complex Service Interface - |
| ICT | Hardware Engineering | In-Circuit Tester - |
| ID | Industry | an IDentification number, name or character string which uniquely identifies a person, part or product within a restricted context - |
| ID | NCR Marketing | Industry Director - |
| IDA | Engineering | Independent Disk Array or Internal Disk Array - |
| IDE | Engineering | Integrated Drive Electronics - a disk drive interface specification |
| IDE/ATAPI | Computer Storage Engineering | Integrated Drive Electronics / AT Attachment Packet Interface - |
| iDEN | Wireless (RF/Radio Frequency) Engineering | Integrated Dispatch Enhanced Network - uses TDMA (Time Division Multiple Access) and VSELP (Vector Sum Excited Linear Predictor) technologies |
| IDF | Intel | Intel Developers Forum - |
| IDI | OSI Networking | Inter-Domain Identifier - a part of the NSAP up to 10 bytes long. |
| IDL | Object Oriented Design | Interface Definition Language - |
| IDP | OSI Networking | Initial Domain Part - first part of the NSAP consisting of the ADI and the IDI. |
| IDT | Firmware Engineering | Internal Device Table - |
| IDTI | Semiconductor Industry | Integrated Device Technology, Inc. - a semiconductor manufacturer and competitor of Intel. |
| IEC | Industry Standardization Group | International Electro-technical Committee - |
| IEEE | Engineering | Institute of Electrical and Electronic Engineers - a standards organization |
| IEF | Database Technology | Information Engineering Facility (a Texas Instruments software product) - |
| IETF | Internet Protocols | Internet Engineering Task Force - |
| IFP | NCR Teradata Engineering | InterFace Processor - |
| IGMP | Internet, Network Layer, Network Protocols, TCP/IP | Internet Group Management Protocol - |
| IGRP | Internet, Network Protocols, Routing, TCP/IP | Interior Gateway Routing Protocol (CISCO Proprietary) - |
| IHVT | CRTs, Electronics | Integrated High Voltage Transformer - see LOPT |
| IIDA | Computer Storage Engineering | Independent Internal Disk Array - |
| IIS | Microsoft Product | Internet Information Server - Microsoft program that serves internet web pages |
| IKE | Network Protocol | Internet Key Exchange - used in IPSec (see also ISAKMP) |
| ILD | Engineering | Integrated LAN Driver - |
| IMAP | Application Layer, Internet, Network Protocols, TCP/IP | Internet Message Access Protocol - |
| IMAP4 | Application Layer, Internet, Network Protocols, TCP/IP | Internet Message Access Protocol revision 4 - |
| IMHO | Electronic Mail Abbreviations | In My Humble Opinion - |
| IMINT | Battlespace, Defense, Intelligence, Military, Security | IMagery INTelligence - |
| IMO | Electronic Mail Abbreviations | In My Opinion - |
| IMPP | Application Layer, Internet, Network Protocols, TCP/IP | Instant Messaging and Presence Protocols - IMPPpre - presence protocol, IMPPmes - messaging protocol |
| IMS | IBM Systems, Marketing | Information Management System - |
| IMTS | Cell Phones, Mobile Phones, Telecommunications | Improved Mobile Telephone Service - |
| IN | Networking | Intelligent Network - |
| INAP | Networking | Intelligent Network Application Protocol - |
| INSEAD | NCR Management | European Institute of International Business in Fontainebleau, France - |
| IO | Computer Input/Output | Input-Output - aka I/O |
| IOP | Marketing | Inter Operability Problems - |
| IOS | | Internetwork Operating System - Cisco proprietary operating system |
| IP | Networking | Internet Protocol - see TCP/IP |
| IP ETET | AT{href=#ATT}&T, Internet, Network Protocols, TCP/IP | IP End-To-End-Tool - |
| IPC | Network Engineering | Inter-Process Communication - |
| IPDC | Application Layer, Internet, Network Protocols, TCP/IP | Internet Protocol Device Control - |
| IPng | Internet Protocol | Internet Protocol next-generation - |
| IPO | Corporate Finance, Corporations | Initial Public Offering - first time ownership is made public for a corporation. |
| IPR | Engineering | Initial Problem Report - |
| IPS | Document Imaging | Image Processing System - |
| IPv6 | Internet, Network Layer, Network Protocols, TCP/IP | Internet Protocol version six - ca. 1998, IPv6 began replacing IPv4, the previous standard |
| IPX/SPX | Novell Networking Protocol | Internet Packet eXchange/Sequenced Packet eXchange - |
| IRC | Application Layer, Internet, Network Protocols, TCP/IP | Internet Relay Chat protocol - |
| IRDA | Connector/Transmission Medium Standard | Infra-Red Device Association - |
| IRDB | Cellular, Mobile Telephones, TDMA | Intellegent Roamer DataBase - a feature of TDMA mobile phones similar to MNC for GSM mobile phones and PRL for CDMA mobile phones. |
| IS | Information Technology | Information Systems - |
| IS-95 | Radio Telephony, Wireless Networking | Internation Standard 95 - the tecnical standard for digital wireless technology that is CDMA . |
| IS-IS | OSI Network Routing Protocol | Intermediate System to Intermediate System - an intra-domain routing protocol, (ISO/IEC 10589,RFC 1195) |
| ISA | Computer Hardware Engineering | Industry Standard Architecture - a bus (adapter/card/board connector/slot) specification. Others are EISA, PCI, NUBUS. |
| ISA | Computer Architecture, Computer Processor Architecture, Intel | Instruction Set Architecture - a computer processor instruction set. When related to Intel processors and clones, often the same as the X86 instruction set or, briefly, X86. |
| ISA | Artificial Intelligence | Intelligent Software Agent - |
| ISAKMP | Internet, Network Protocols, Session Layer, TCP/IP | Internet Security Association and Key Management Protocol - a security key exchange protocol that negotiates a shared security policy and shared encryption keys. |
| ISAKMP/IKE | Internet, Network Protocols, Session Layer, TCP/IP | Internet Security Association and Key Management Protocol and Internet Key Exchange Protocol - a security key exchange protocol that negotiates a shared security policy and shared encryption keys. |
| ISAM | DataBase, Information Engineering | Indexed Sequential Access Method - |
| ISAPI | Microsoft Product | Internet Server Applications Programming Interface (API) - Microsoft program that serves internet web pages |
| ISB | Microsoft, Microsoft Products | Internet Service Bus - |
| ISBN | Standards Committee | Draft International Standard - |
| ISCI | NCR 5100 | International Standard Book Number - |
| iSCSI | Internet, Network Protocols, Session Layer, TCP/IP | "Scuzzy" - Small Computer Systems Interface - a disk drive(and other devices) interface specification |
| ISD | Engineering | Interactive System Definition - |
| ISDN | Engineering | Integrated Services Digital Network - |
| ISH | OSI Network Routing Protocol | Intermediate System Hello - a packet sent by an Intermediate System (see IS-IS) |
| ISO | Organization | International Standards Organization or more correctly translated, International Organization for Standardization - based in Europe |
| ISO-IGRP | OSI Network Routing Protocol | ISO Interior Gateway Routing Protocol - based on Cisco Proprietary IGRP |
| ISP | World Wide Web | Internet Service Provider - |
| ISP | NCR LifeKeeper | In Service, Protected: resource running and LifeKeeper protecting it - |
| ISP | Standards Committees | International Standardized Profiles - |
| ISSN | Standards Committees | International Standard Serial Number - |
| ISU | NCR LifeKeeper | In Service, Unprotected: resource running and LifeKeeper not protecting it - |
| ISV | Organization | Independent Software Vendor - |
| IT | Marketing | Information Technology - |
| ITA | Industry | Information Technology Agreement - an international trade agreement under which member countries have agreed to eliminate import duties on a range of information technology products. |
| ITEQ | Marketing | Interactive Teradata Query facility - |
| ITFS | Wireless Internet | Instructional Television Fixed Services - |
| ITIL | Information Technology | Information Technology Infrastructure Library - |
| ITO | LCD Panels, Manufacturing and Technology, monitors | Indium Tin Oxide - used as a conductive layer |
| ITS | Telephony Engineering | Internet Telephony Server - |
| ITSP | Telecommunications Industry | Internet Telephony Service Provider - |
| ITU | Networking, Telecommunications Industry | International Telecommunications Union - the international telecommunications standards organization |
| IVR | Telephone Engineering | Interactive Voice Response - telephone call center system in which voice prompts or menus are given and the caller responds by pushing a (touch-tone) key on the telephone key pad |
| IXC | Telecommunications Industry | Inter eXchange Carrier - |
| J |
| J1 | Telecommunications Industry | Japanese TDM Hierarchy Level 1 - |
| J2 | Telecommunications Industry | Japanese TDM Hierarchy Level 2 - |
| J2ME | Cell Phones, Mobile Phones, Telecommunications, Telephony | Java 2 Micro Edition - A version of Java for embeded applications. J2ME applications can be created by anyone who has the ability to program in Java. J2ME competes with BREW functions but is used used mostly in non- CDMA cell phones. |
| J3 | Telecommunications Industry | Japanese TDM Hierarchy Level 3 - |
| J4 | Telecommunications Industry | Japanese TDM Hierarchy Level 4 - |
| JBOD | Engineering | Just a Bunch Of Disks - an array of disks without any hardware RAID adapter/controller |
| JBOD-SE | Disk Drives, RAID | Single-Ended [SCSI] Just a Bunch Of Disks - |
| JCL | IBM Systems | Job Control Language - |
| JDBC | Java Technology | Java Data Base Connectivity - |
| JESS | Business Rules, Information Technology, Java Technology | Java Expert System Shell - A BRMS that uses CPLIPS, OPS |
| JFS | Engineering | Journaling File System - |
| JIT | Manufacturing | Just In Time - |
| JIT | Software Engineering | Just In Time compiler - |
| JNI | Java | Java Native Interface - |
| JPEG | Graphics File Formats | Joint Photographic Experts Group - |
| JSM | Software Product | Japanese System Messages - |
| JSP | Internet | Java Server Pages - |
| JSR94 | Business Rules, Information Technology, Java Technology | Java Specification Request 94 - makes Java-based BRMSes interoperable. |
| JTAPI | Telephony Engineering | Java Telephony Applications Programming Interface, Sun's specification for a CTI - |
| JTRS | Wireless Communications, Wireless Networking, Wireless Radio | Joint Tactical Radio Systems - |
| K |
| KB | Computer Industry | KiloByte - technically equal to 1,024 bytes; less formally, 1,000 bytes |
| KB | Information Technology | Knowledge Base - |
| KBS | Business Rules, Information Technology | Knowledge Based System - in a Business Rules context, a business rules system which may use an ANN (Artificial Neural Network) |
| KDE | Linux | "K" Desktop Environment - |
| KMBS | Engineering | Knowledge Base Management System - |
| KNI | INTEL Computer Architecture | Katmai New Instructions - a new set of instructions included with the Intel Katmai Architecture. |
| KPA | Engineering | Key Process Area - |
| KPC | Marketing | Key Purchase Criteria - |
| KRA | Management | Key Results Area - |
| KRA | Management | Key Responsibilities Area - |
| KRI | Management | Key Performance Index - |
| KSU | Telecommunications, Telephony | Key System Unit - |
| kV | electricity, Electronics, high voltage | kilovolt or kilovolts - a multiplier of one thousand (1,000) volts |
| L |
| L2TP | Networking | Layer 2 Transfer Protocol - secure; uses authentication and encryption |
| l33t | blogs, Internet Gaming, odd stuff (not an acronym), slang | Pronounced "leet", means "elite", also spelled "1337" . - |
| LAFR | NCR GLobal Realization Process | Late Arriving Feature Requirement - |
| LAN | Engineering | Local Area Network - |
| LANE | Asynchronous Transfer Mode | LAN (Local Area Network) Emulation - |
| LBB | Microsoft Windows Networking, Windows File and Printer Sharing | Local Backup Browser - |
| LCD | Electronic Display Technology | Liquid Crystal Display - |
| LCD | NCR LifeKeeper | Lifekeeper Configuration Database - |
| LCM | Electronic Display Technology | Liquid Crystal Module - same as LCD |
| LCM | NCR LifeKeeper | Lifekeeper Communication Manager - |
| LCMP | Engineering | Loosely-Coupled Multi-Processing - |
| LCP | Networking | Link Control Protocol - |
| LDAP | Internet, Network Protocols, Session Layer, TCP/IP | Lightweight Directory Access Protocol - |
| LEAD | Engineering Process | Live Early Adoption and Demonstration - |
| LEC | Internet, Networking, Telecommunications | Local Exchange Carrier - an ISP or company that provides high-speed telecommunications services such as a T1 line. |
| LED | Electrical Engineering | Light Emitting Diode - |
| letterbox | Motion Pictures, Television | describes the version of a motion picture shrunk to fit all of the screen on a television. This leaves black bands at the top and bottom of the TV monitor. See "aspect ratio". - |
| LFM | Engineering | Log File Management - |
| LHS | Business Rules, Programming | Left Hand Side - the code or syntax on the left or target side of an assignment statement; the code executed when a predicate condition is true; in a business rule, the code executed when a business rule is true. |
| LINQ | Microsoft, Microsoft Windows Software Development | Language INtegrated Query - |
| LIW | Computer CPU | Long Instruction Word - |
| LK | Software Product | LifeKeeper - |
| LLC | Networking | Logical Link Control - |
| LLC | Legal | Limited Liability Corporation - |
| LLNL | Computer Research and Development | Lawrence Livermore National Laboratory - |
| LMB | Microsoft Windows Networking, Windows File and Printer Sharing | Local Master Browser - |
| LMO | Marketing | Large Memory Option - |
| LOB | Marketing | Line Of Business - |
| LOPT | CRT, Electronics | Line OutPut Transformer - also known as a flyback transformer, simply a "flyback", or an IHVT - a specialized transformer used in the electronics industry to produce a very high voltage source, usually in excess of 15,000 volts (15 kv{href=#kV}) and typically in the range of 20,000 to 30,000 volts for the purpose of powering (the electron gun used in) cathode ray tubes (CRT{href=#CRT}s). |
| LP-MUD | Computer Games | Lars Pensjö MUD - a MUD which uses the computer language LPC to create objects. SEE MUD, LPC. |
| LPB | Engineering | Local Peripheral Adapter (Board) - |
| LPC | Computer Games, Computer Languages | Lars Pensjö C - a language invented by Lars Pensjö to allow the creation of objects in LP-MUD. SEE MUD, LP-MUD. |
| LRACI | NCR LifeKeeper | LifeKeeper Recovery Alarming and Control Interface - |
| LSGSC | Organization | Large Systems Global Support Center - |
| LSM | Computer Peripherals | Library Storage Module - a StorageTek Digital Linear Tape LiBRary unit |
| LSM | Linux, Security | Linux Security Module - |
| LSP | OSI Networking | Label Switch Path - |
| luminance | Video Recording Engineering | the BRightness component of an analog video signal - |
| LUN | Computer Engineering, SCSI | Logical Unit Number - |
| LVFP | Organization Technology | Leadership Value Feedback Process - |
| LVM | Computer Engineering, Linux, Unix | Logical Volume Manager - software that causes any number of physical hard drives to be used as one or more virtual disks, often in a RAID configuration. |
| M |
| MAC | Ethernet Networks | Media Access Control - "MAC address" - a number stored in six bytes unique to each NIC (Network Interface Card) and hardware network interface module. (IEEE 802) |
| MAC | Access Control, Security | Mandatory Access Control (contrasted with Discretionary Access Control) - |
| MAC | Encryption, Networking | Message Authentication Code - a code used to check message integrity or authenticity, also known as U.S. Government Standard Data Authentication Code. |
| MAN | Networking | Metropolitan Area Network - |
| MASINT | Battlespace, Defense, Intelligence, Military, Security | Measurements And Signatures INTelligence - |
| MathML | Web Authoring, XML | Mathematics Markup Language - |
| MAU | NCR Engineering | Medium Attachment Unit - |
| MB | Computer Industry | MegaByte - technically equal to 1,048,576 (1024*1024) bytes or 1024KB(KiloBytes); less formally, 1,000,000 bytes or 1000KB |
| MBA | BIOS, Booting, Diskless Computers, Networking | Managed Boot Agent - a program or hardware that boots a computer from a network |
| MBE | Solid State Device Engineering | Molecular Beam Epitaxy - |
| MCA | Engineering | Micro Channel Architecture - a backplane/baseboard bus architecture standard invented by IBM |
| MCA | Circuit Board Engineering | Memory Controller ASIC [SIC] - |
| MCCA | Engineering | Micro Channel to Channel Adapter - |
| MCF | Web Authoring, XML | Meta Content Framework - |
| MCR | DEC Computers, RSX-11M Operating System | Monitor Console Routine - a set of commands each of which can be run from a PDP-11 terminal. |
| MCU | Telecommunications Networking | Multi-party Controller Unit - |
| MD | Linux, Storage Management, Unix | Multiple Devices - software that causes any number of physical hard drives to be used as one or more virtual disks, often in a RAID configuration. |
| MD5 | Computer Networking | Message Digest 5 - a method used for encrypting telnet commands. |
| MDA | Engineering | Mirrored Disk Array - |
| MDS | Wireless Networking | Multipoint Distribution Services - |
| mega | Computer Industry | a prefix meaning one million (10**6) or in powers of 2, 1024*1024 (2**20) - |
| MFC | Microsoft | Microsoft Foundation Classes - |
| MFD | DEC Computers, RSX-11M Operating System | Master File Directory - the upper level directory in the two-tier hierarchy of the PDP-11 file system. See also UFD. |
| MFM | Disk Drives | Modified Frequency Modulation - an information encoding technique used on disk drives. Commonly found on floppy drives and old AT and XT PC |
| MIB | Desktop Management Interface, SNMP | Management Information Base - |
| MIC | Networking | Message Integrity Check - |
| MIDI | Audio and Music Technology | Musical Instrument Digital Interface - |
| MIDP | Cellular Phones, Mobile Phones, Telecommunications, Wireless Networks | Mobile Information Device Profile - |
| MIF | Desktop Management Interface | Management Information Format - |
| MIMD | Computer Architecture | Multiple Instruction Multiple Data-stream - the capability of processing data sets with more than one instruction |
| MIME | Internet Electronic Mail | Multipurpose Internet Mail Extension - |
| MIMO | Wireless Networking | Multiple In, Multiple Out - a wireless network specification in which a single connection consists of two or more unique radio signals, in the same radio channel, where each signal carries different digital information |
| MIPS | Computer Engineering | Million Instructions Per Second - |
| MIRS | (Motorola) Wireless Telecommunications: Mobile Phones, Cell Phones | Motorola Integrated Radio System - similar to IDEN |
| MLM | Marketing | Multi-Level Marketing - |
| MLOAD | Engineering | Multi-LOAD - |
| mm | Mechanical Engineering | MilliMeter: a linear measurement equivalent to 1/1000 of a meter or about 1/25 of an inch - |
| MMAC | Cabletron Systems Product | Multi-Media Access Center - |
| MMORPG | Computer Games | Massively Multiplayer Online Role Playing GamesMUD{href=#MUD} Object Oriented - a type of MUD{href=#MUD}, Multi-User Dungeon. See MUD{href=#MUD}, MOO{href=#MOO}, MUSH{href=#MUSH} |
| MMS | Multi-Media, Networking, Services, Telephony | Multimedia Messaging Service - |
| MNC | Cellular, GSM, Mobile Telephones | Mobile Network Code - a feature of GSM mobile phones similar to PRL for CDMA mobile phones and IRDB for TDMA mobile phones. |
| MNLS | Organization | Multinational Language Support - |
| MNP | Engineering | Microcomm Network Protocol - |
| MobileIP | Internet, Network Protocols, TCP/IP, Transport Layer | MobileIP{href=#Mobile%20IP} Protocol - |
| MOO | Computer Games | MUD Object Oriented - a type of MUD, Multi-User Dungeon. See MMORPG, MUD, MUSH |
| MOSI | Marketing | Micro Operating System Interface - |
| MOTS | Buying, Electronic and Computer Military Components Marketing | Military or Modifiable Off The Shelf - See also COTS, GOTS, NOTS, ROTS |
| MP | Engineering | Multiprocessor - |
| MP-RAS | NCR version of UNIX | Multi-Processor - Reliability, Availability, Serviceability |
| MP3 | Audio Recording Industry, Motion Picture Industry, Music | Motion Pictures expert group audio layer 3 [III] - |
| MPBE | Engineering | Multi-Product Build Environment - |
| MPC | Engineering | Manual Problem Characterization - |
| MPCA | Engineering | Multi-Protocol Communication Adapter - |
| MPCM | Network Engineering | Multi-Protocol Communication Module (a product of the firm ECCI) - |
| MPE/iX | Hewlett-Packard Operating Systems, HP3000 | MultiProgramming Executive with Integrated POSIX, - |
| MPEG | Motion Picture Engineering | Motion Picture Experts Group - a standard for motion-video compression |
| MPEG-1 | Motion Picture Engineering | Motion Picture Experts Group - a standard for motion-video compression roughly equivalent to VHS |
| MPEG-2 | Motion Picture Engineering | Motion Picture Experts Group - a standard for motion-video compression roughly equivalent to S-VHS |
| MPI | Computer Engineering | MenuPort Interface - |
| MPI | Computer Engineering | Message Passing Interface - a standard for message-passing on among programs running on massively-parallel supercomputers |
| MPLS | Networking | Multi-Protocol Label Switching - |
| MPOE | Internet, Networking, Telecommunications | Minimum Port Of Entry - the place on a customer's property or premises where an LEC provides physical access to a telecommunications service such as a T1 line; the point at which the maintenance responsibility of the LEC ends. |
| MPP | Organization | Massively Parallel Processing - |
| MPPE | Networking | Microsoft Point-to-Point Encryption - |
| MR | AT&T Software Development Process | Modification Request - |
| MRG | Communications Protocols, Internet, Internet Protocols, Network Protocols | Messaging Realtime Grid - Red Hat's Enterprise MRG, pronounce "merge". |
| MRJE | Communications (IBM, Legacy) | Multi-leaving Remote Job Entry (see Bisynch, RJE) - |
| MRP | Marketing, Sales | Manufacturer's Retail Price - |
| MRU | Networking | Maximum Receive Unit - |
| MS | Engineering | MilliSecond - |
| MS-CHAP | Networking | Microsoft Challenge-Handshake Authentication Protocol (also: CHAP) - |
| MSAU | Engineering | Multiple Station Access Unit - |
| MSCS | Engineering | Microsoft Cluster Server (formerly "WolfPack") - |
| MSDOS | Engineering | Microsoft Disk Operating System - |
| MSDS | Engineering, Manufacturing, OSHA | Material Safety Data Sheet - |
| MSMQ | Communications Protocols, Internet, Internet Protocols, Network Protocols | MicroSoft Message Queuing - |
| MSO | Cable Television Industry | Multiple Systems Operator - |
| MTA | Microsoft Exchange | Message Transfer Agent - |
| MTBF | Marketing | Mean Time Between Failures - |
| MTDP | NCR Teradata Engineering | Micro TeraDatA Director Program - |
| MTS | Microsoft Software | Microsoft Transaction Server - Became a part of Microsoft Component Services Architecture (CSA) in 1998 |
| MTS | Telephone Switch Engineering | Mechanized Translation System - a specific application which downloads new software to telephone switches |
| MTS | Cell Phones, Mobile Phones, Telecommunications | Mobile Telephone Service - |
| MTTR | Engineering | Mean Time To Repair - |
| MTU | Networking | Maximum Transmit Unit - |
| MUD | Computer Games | Multi-User Dungeon or Multi-User Dimension - an ongoing computer game which a player logs into a virtual world, assumes the persona of a character, and interacts with the virtual world other such players. Players may be allowed to create objects within the world and if so, there will be a language for creating objects. There are several types of MUD. Some have objectives for the player to reach. There is usually role-playing and may be fighting or battles. See MMORPG, MOO, MUSH |
| MUSH | Computer Games | Multi-User Shared Hallucination - A type of MUD. See MMORPG, MOO, MUD |
| MUX | Computer Hardware Engineering | (Communications) MUltipleXer - |
| MVC | Apple, Objective C, SmallTalk-80, Xcode | Model-View-Controller - an object-oriented view (paradigm) of the way a program should be organized taken from SmallTalk-80 and used in Objective C. |
| MVS | IBM Systems | Multiple Virtual Storage - |
| MZAP | Internet, Network Protocols, Session Layer, TCP/IP | Multicast-Scope Zone Announcement Protocol - |
| N |
| NAC | Network Access Management, Network Security | Network Admission Control - Cisco's product. Competes with NAP and TNC |
| NAL | Novell Networking | Novell Application Launcher - |
| NAMPS | Cell Phones, Mobile Phones, Telecommunications | Narrowband Advanced Mobile Phone Service - |
| NAP | Network Access Management, Network Security | Network Access Protection - Microsoft's Product. Competes with NAC and TNC |
| NAPT | Networking | Network Address and Port Translation - |
| NARP | Internet, Network Protocols, Routing, TCP/IP | NBMA [Non-Broadcast Multi-Access] Address Resolution Protocol - |
| NAS | Data Storage, Networking | Network Attached Storage - |
| NAT | Networking | Network Address Translation - |
| Nbad | Networking, Security | Network Behavior Anomaly Detection - |
| NBMA | Internet, Link Layer, Network Protocols, TCP/IP | Non-Broadcast Multi-Access - |
| NBP | Windows Networking Protocol | NetBIOS Frame - same as NETBEUI protocol |
| NBP | (Apple) Networking | Name Binding Protocol - |
| NBS | Standards and Specifications, U.S. Government | National Bureau of Standards - (archaic, legacy) former name of NIST |
| NBT | Windows Networking | NetBIOS over TCP/IP - |
| NC | Marketing | Network Computer - |
| NCA | Computer Industry | Network Computing Architecture - |
| NCD | Engineering | Network Computing Device - |
| NCP | Networking | Network Control Protocol, Network Control Program. - |
| NCP | Networking | NetWare Core Protocol - runs on top of IPX/SPX |
| NCR | Organization | National Cash Register - |
| NCRM | Organization | NCR Maintenance - |
| NCSL | Engineering | Number of Code Source Lines - number of lines of source code which actually do something (excluding blank and comment lines) |
| NDMP | Data Storage, Networking | Network Data Management Protocol - |
| nDRAM | Computer Memory chips | next generation DRAM - memory to come from an agreement between Intel and Rambus supposed to be faster than RDRAM. |
| NDS | Novell Networking | Novell Directory Services - |
| NEC | Engineering | National Electric Code - |
| NEC | Electrical Industry | National Electric Code - |
| NEMA | Electrical Industry | National Electrical Manufacturers Association - |
| NET | Networking | Network Entity Title - equivalent to the IS-IS NSAP with NSEL set to zero. |
| NETBEUI | Networking | Network ... - |
| NetBIOS | Networking | Network Basic Input/Output System - |
| NetBIOS/IP | Internet, Network Protocols, Session Layer, TCP/IP | NetBIOS that runs over TCP/IP - |
| NEXT | Telecommunications | Near-End Cross-Talk - |
| NFR | Marketing | Not For Resale - a category of sales transactions in which the buyer cannot resell the merchandise. Other restrictions may also apply such as the merchandise is to be used only for prototyping or demonstration purposes and not allowed to be used commercially or in a professional or production environment. |
| NFS | Engineering | Network File System - a Sun Microsystems product; allows file sharing over a network. |
| NHRP | Internet, Network Protocols, Routing, TCP/IP | Next Hop Resolution Protocol - |
| NIC | Network Organization | Network Information Center - |
| NIC | Computer Hardware | Network Interface Card - |
| NIDS | Networking | Network Intrusion Detection System - |
| NIST | Standards and Specifications, U.S. Government | National Institute of Standards and Technology (nee NBS) - |
| NLA | Internet Protocol | Next Level Aggregator - from IPv6 - NLA1, NLA2, etc. the number indicates the aggregate level |
| NLM | Novell Networking | NetWare Loadable Module - |
| NLSP | Novell Network Protocol | Netware Link Services Protocol - |
| NMS | Asynchronous Transfer Mode | Network Management System - |
| NNTP | Internet Protocol | Network news Transport Protocol - |
| NOC | Computer Operations | Network Operations Center - |
| NOTS | Buying, Electronic and Computer Military Components Marketing | NATO or Niche Off The Shelf - See also COTS, COTS, MOTS, ROTS |
| NPB | NCR Parallel Systems | Node Power Board - |
| NPD | Organization | Network Products Division - |
| NPL | Novell Networking | NetWare Portability Layer - |
| NRG | Multi-Media, Networking, Services, Telephony | Network Resources Gateway - |
| NRZE | Information Encoding | Non-Return to ZEro - |
| NS | Apple Mac OS X, Cocoa Programming, Next Computers, Steve Jobs | Next Step - Also a prefix. A programming environment using Objective C, originally invented for Next Computers [defunct] and currently (2005) part of the Cocoa framework for Mac OS X. |
| NSAP | OSI Networking | Network Service Access Point - (ISO/IEC 8348, Appendix A) an multi-part OSI network layer address (see AFI, IDI, IDP, System ID, HODSP, DSP) defined as up to 20 octets long. Contains the system ID which is 6 bytes long. |
| NSC | Organization | National Support Center - |
| NSDBS | Engineering | North South Data Base System - |
| NSEL | Networking | Network SELector - a one-byte value which identifies a process on a router |
| NSF | Science | National Science Foundation - |
| NSM | Engineering | Network and Systems Management - |
| NSP | Motherboard Standards | Native Signal Processing - A scheme from Intel's Andy Grove to move all DSP functions to the CPU. |
| NSU | Network Engineering | Network Support Utilities (Sun) - |
| NT | Computer Industry | Windows NT ("New Technology") - |
| NTFS | Windows NT | NT File System - |
| NTP | Application Layer, Internet, Network Protocols, TCP/IP | Network Time Protocol - |
| NUPI | Marketing | Non-unique Primary Index - |
| NUSI | Marketing | Non-unique Secondary Index - |
| NVP | Telecommunications | Normal Velocity of Propagation - |
| NVRAM | Computer Engineering | Non-Volatile Random Access Memory - |
| NVSRAM | Engineering | Non-Volatile Static Random Access Memory - |
| O |
| OACP | Cable Television, Set-Top Boxes | Origin/Access Content Peering - |
| OBDC | DataBase Engineering | Object Data Base Connectivity - |
| OBI | NCR Organization | Open Buying on the Internet - |
| OC | Telecommunications Standards | Optical Carrier in SONET - |
| OCC | archaic, AT&T Concept (1995 | Open Cooperative Computing - |
| OCCA | archaic, AT&T Concept (1995 | Open Cooperative Computing Architecture - |
| OCOR | Accounting | Other Cost Of Revenue - cost of additional activity required to generate income |
| OCR | Desk Top Publishing | Optical Character Recognition - |
| ODBC | Microsoft | Open DataBase Connectivity - a standard for database access |
| ODL | Sun Software | Opaque Device LiBRary - |
| ODMG | Object Oriented Design | Object Database Management Group - |
| ODS | Database Technology | Operational Data Store - a subject-oriented Enterprise Data Warehouse |
| OEM | Marketing | Original Equipment Manufacturer - |
| OFDM | Networking | Orthogonal Frequency Division Multiplexing - a modulation method (for putting information into radio frequencies) |
| OFX | Web Authoring, XML | Open Financial eXchange - |
| OHCI | Computer Architecture, Computer Industry | Open Host Controller Interface - |
| OLAP | Database Technology | OnLine Analytical Processing - |
| OLE | Microsoft | Object Linking and Embedding - Microsoft's common object standard for inter-applications communication |
| OLTP | Database Technology | On-Line Transaction Processing - |
| OM | Object Oriented Design | Object Model - |
| OMA | Telecommunications Networking | Open Mobile Alliance - |
| OMA | Cellular Phones, Mobile Phones, Telecommunications, Wireless Networks | Outlook Mobile Access - mobile access to a Microsoft Exchange mail server. |
| OMG | Object Oriented Design | Object Management Group - |
| OML | Object Oriented Design | Object Manipulation Language - |
| OMS | Manufacturing | Order Modeling System - |
| ONE | Engineering | Open Networking Environment - |
| OO | Object Oriented Design | Object-Oriented - |
| OOD | Software Engineering | Object Oriented Design - |
| OOP | Software Engineering | Object Oriented Programming - |
| OOSE | Software Engineering | Object Oriented Software Engineering - |
| OPC | Marketing | Operations Center - part of OneVision |
| OPS | Internet Privacy | Open Profiling Specification - |
| OPS | Software Product | Oracle Parallel Server - |
| OPS | Business Rules, Information Technology | Official Production System - a system in which a production is a business rule |
| OPSD | Intel Corporate Structure | OEM Platform Solutions Division - |
| OPSJ | Business Rules, Information Technology | Official Production System for Java - uses the public domain Rete{href=#http://www.google.com/search?hl=en&ie=UTF-8&q=Rete+Algorithm&btnG=Google+Search} Algorithm invented by Dr. Charles Forgy. |
| OQL | Distributed Computing | Object Query Language - |
| OQS | Distributed Computing | Object Query Service - |
| ORASID | Marketing | Oracle Instance IDentification - |
| ORB | Object Oriented Design | Object Request Broker - |
| ORDB | Email, Internet, SPAM | Open Relay DataBase - |
| ORPC | Microsoft DCOM | Object Remote Procedure Call - a synonym for DCOM |
| OS | Engineering | Operating System - |
| OSA | Multi-Media, Networking, Services, Telephony | Open Service Architecture - |
| OSA | NCR Software Product | OperationS Advantage - graphical user interface system administration program |
| OSARS | Engineering | OperationS Advantage BASE Remote Services package - |
| OSD | Web Authoring, XML | Open Software Description format - |
| OSF | Engineering | Open Systems Foundation - |
| OSF | NCR LifeKeeper | Out of Service, Failed: resource has failed, LifeKeeper may be recovering - |
| OSI | ISO Standards | Open Systems Interconnection - an area of, or series of, ISO standards which define computer interconnectivity |
| OSI/RM | Engineering | Open Systems Interconnect Reference Model - |
| OSP | World Wide Web | Online Service Provider - a company which provides more than the basic internet, email and newsgroup connection services such as America OnLine |
| OSPF | Internet, Network Protocols, Routing Algorithm, TCP/IP | Open Shortest Path First - |
| OSPF/IS-IS | Internet, Network Protocols, Routing Algorithm, TCP/IP | Open Shortest Path First - Intermediate System to Intermediate System |
| OSS | Computer Operating Systems | Operating System Specific interface - |
| OSU | NCR LifeKeeper | Out of Service Unimpaired: resource not functioning, but capable of running - |
| OTC | Organization | Overseas Trading Corporation - |
| OTLC | Object Oriented Design | Object Technology Licensing Corporation - |
| OTOS | Teradata Systems | Open Teradata Operating System - |
| OTS | DEC Computers, RSX-11M Operating System | Object Time System - a linking system for libraries and Fortran IV and Fortran-77 compiler objects. |
| OU | et al, Microsoft | Organizational Unit - Microsoft: a container within an Active Directory Domain |
| OVIC | Marketing | One Vision Installation Utilities package - |
| OVP | Hardware Engineering | Over-Voltage Protection - |
| OWL | Software Engineering | Object Windows LiBRary - object liBRary used by Borland Delphi, PowerSoft Optima and Borland C++ |
| P |
| P2P | Engineering, Manufacturing | Prototype To Production - |
| P3P | Web Authoring | Platform for Privacy Preferences Project - |
| PA | Organization | Performance Appraisal - |
| PAC | NCR Culture | Program Approval Council - |
| PAL | Engineering | Programmable Address Logic - |
| PAP | Networking | Password Authentication Protocol - |
| PAP | (Apple) Networking | Printer Access Protocol - |
| Parlay | Multi-Media, Networking, Services, Telephony | A service API to provide programming access to telephony networks. - |
| PBX | Telecommunications, Telephones, Telephony Engineering | Private Branch eXchange - a stand-alone wired telephone system that also connects to a wired (land-line) telephone service provider. |
| PC | Computer Industry | Personal Computer - |
| PC/RA | Engineering | Probable Cause / Recommended Action - |
| PCI | Engineering | Peripheral Computer Interconnect - a backplane/baseboard bus architecture standard invented by INTEL |
| PCM | Telephony | Pulse Code Modulation - |
| PCMCIA | Laptop Computers | Personal Computer Memory Card International Association - |
| PCRE | CGI, PERL, Programming Languages, Shell Programming | Perl Compatible Regular Expressions - |
| PCS | Organization | Personal Computer Support - |
| PCS | Cell Phones, Mobile Phones, Telecommunications | Personal Communications Systems - |
| PDA | Engineering | Parallel Disk Array - |
| pda | Cellular Telephones, Computers, Internet | Personal Digital Assistant - a small hand-held computer usually connected to the internet wirelessly and using cellular telephone technology |
| PDB | Manufacturing | Product Data Base - |
| PDC | Network Engineering | Primary Domain Controller - |
| PDE | NCR Teradata Software | Parallel Database Extension - |
| PDE | Apple Macintosh Development | Printer Dialog Extension - allows custom extension of printer interface. See Inside Mac OS X: Extending Printing Dialogs (available from Apple?) |
| PDF | Graphics File Format | Portable Document Format - originated by Adobe Systems |
| PDN | Engineering | Public Data Network - |
| PDU | Networking; "Distributed Computing Environment" | Protocol Data Unit - |
| PE | Software Engineering | Parsing Engine - |
| PE | NCR Software Package | Presentation Engine - |
| PEAP | Encryption, Networking | Protected Extensible Authentication Protocol, Protected EAP{href=#$EAP} - |
| PEAR | HTML Programming, PHP programming, Web Programming | PHP Extension and Application Repository - |
| PEP | Software Engineering | Parsing Engine Processor - |
| PER | Engineering | Personality Board - |
| PERL | Software Engineering / Computer Administration | Practical Extraction and Reporting Language -or- Pathologically Eclectic Rubbish Lister - |
| peta | Computer Industry | a prefix meaning trillion (10**12) or in powers of 2, 1024*1024*1024*1024 (2**40) - |
| PGA | "chips", Integrated Circuits | Pin Grid Array - the electrically conducting pins which plug into a socket, usually the pins under a CPU or processor chip. |
| PHP | HTML, SGML, Web Authoring | "PHP Hypertext Preprocessor", a recursive acronym [Is this an example of a project that exceeded it's original intentions?] PHP is an HTML preprocessor language which is embedded in HTML with special HTML{href - |
| PI | Engineering Process | Process Improvement - |
| PIC | IBM PC Clone Hardware | Processor Interrupt Controller - Standard PC interrupt controller. Responsible for steering I/O interrupts to the CPU. Conforms to the Intel 8259 specification. |
| PIC | NCR Engineering | Process Improvement Coordinator - |
| PICS | HTML, Web Authoring | Platform for Internet Content Selection - |
| PID | UNIX | Process IDentification number - |
| PID | Marketing, Sales | Product IDentification number - |
| PIIG | Telecommunications, Telephony | PSTN Internet Inter-working Group - |
| PIL | NCR Organization | Product Introduction and Logistics - |
| PIM | Personal Computer Software | Personal Information Manager - usually an address book or contact manager application |
| PIO | Hard Drives | Programmed Input Output - a method for increasing IDE/ATA hard disk throughput |
| PIP | DEC Computers, RSX-11M Operating System | Peripheral Interchange Processor - a utility for copying information from one peripheral to another |
| PISN | Computer Standard Specification | Private Integrated Services Network - |
| PIT | Engineering Process | Pre-Integration Test - |
| PITA | DataBase, Database Administration | Point-In-Time Architecture - a database method of providing an audit trail. Also called Time Transaction Value (TTV). |
| PKI | Networking | Public Key Infrastructure - |
| PLAN | NCR 5100 | Public Local Area Network - |
| PLC | Hardware Engineering | Programmable Logic Controller - |
| PLCC | Chip Types, Solid State Device Packaging | Plastic Leaded Chip Carrier - a somewhat rectangular or square chip with leads on all four sides, socketed or wave-soldered to the printed circuit board. |
| PLEDM | Engineering | Phase-state Low Electron Drive Memory - Hitachi/CambridgeU. uses transistor instead of capacitor. |
| PLMN | Telecommunications, Telephony | Public Land Mobile Network [e.g. GSM] - |
| PLP | Network Protocol | Packet Layer Protocol - |
| PLT | Organization | Partner Linkage Team - |
| PM | NCR Culture | Product Management - |
| PM | Organization (old) | Program Management - |
| PM | Marketing | Performance Monitor - |
| PMoTWWM | W3C Agenda | Putting Mathematics on The Web With MathMl{href=#MathML} - |
| PMS | Engineering | Processor/Memory/SCSI Board - |
| PMT | Organizational | Process Management Team - |
| PN | Manufacturing | Part Number - |
| PNG | Web Specification | Portable Network Graphics - a graphics file specification |
| PNRp | IPv6, IP, Networking | Peer Name Resolution Protocol - |
| PO | Industry | Purchase Order - |
| PoC | Telecommunications Networking | Push-to-talk over Cellular - |
| POLARIS | NCR Human Resources | - system for submitting business travel claims - |
| POP3 | Application Layer, Internet, Network Protocols, TCP/IP | Post Office Protocol version 3 - |
| POS | Networking | Packaged Over SONET [see SONET] - |
| POSIX | Computer Operating Systems, Computer Specifications | Portable Operating Systems Interface - a description of the basic kernel system calls required for a UNIX OS and the concepts behind them. |
| POST | Engineering | Power On Self Test - |
| POTS | Telecommunications | Plain Old Telephone Service or Plain Old Telephone System [analog, copper pairs] - |
| PPP | Networking | Point-to-Point Protocol - a high-level network protocol that uses HDLC, LCP and NCP to negotiate connections over a DTE/DCE hardware interface. |
| PPS | Manufacturing, Marketing | Plant Product Systems (the central product database) - |
| PPT | Desk Top Publishing | [Microsoft] Power PoinT - most commonly a file suffix |
| PPTP | Networking | Point-to-Point Tunneling Protocol - |
| PPV | Engineering | Product Platform Validation - |
| PQS | Hardware Engineering | PCI Quad SCSI - the NCR Quad (Ultra) SCSI PCI adapter board |
| PR | Organization | Prerequisite - |
| PRC | NCR Culture | Product Readiness Council - |
| PRD | NCR Engineering Process | Preliminary Requirements Document - |
| Pre-N | NCR Engineering Process | Preliminary Requirements Document - |
| predicate | grammar, language | the affirmative portion of a sentence or statement, especially when there is a qualifying condition. See LHS, RHS, EHS. - |
| PRIMO | NCR Manufacturing | PRogram Information Management Owner - |
| PRL | CDMA, Cellular, Mobile Telephones | Preferred Roaming List - a feature of CDMA mobile phones similar to MNC for GSM mobile phones and IRDB for TDMA mobile phones. |
| PRP | Engineering | Program Realization Process - |
| PRT | NCR Culture | Program Realization Team - |
| PS | Engineering | Power Supply - |
| PSC | Marketing | Power Shelf Controller - |
| PSD | NCR Parallel Systems | Professional Services Division - |
| PSI | Hardware Engineering | Power Subsystem Interface, Power Supply Interface Module - |
| PSK | Networking | Phase Shift Keying - |
| PSP | PERL, Programming, Servers | Perl Server Pages - |
| PSP | Software Engineering Institute Standards | Personal Software Process - |
| PSSD | Organization | Platform Software System Division - |
| PSSP | NCR Organization | Product and Solutions Services Planning - a division of WCS, Worldwide Customer Services |
| PSTN | Telecommunications, Telephony | Public Switched Telephone Network [aka POTS] - |
| PTS | Database Technology | Parallel Transaction Server - |
| PUP-E | Software Package | Package Update-ability Extensions - |
| PVM | Beowulf, Parallel Processing Computers | Parallel Virtual Machine, Pass-through Virtual Machine - |
| PVR | Personal Computers | Personal Video Recorder - name given to features of a machine or computer or video card that allows instant recording and replay of video (e.g. TV) programs, etc. |
| PVT | Software Engineering | Patch Verification and Test - |
| pwn | Intactive Gaming, slang | [not an acronym] to own, destroy, capture, dominate, etc. often used as the reflexive verb as in "pwned". Reminiscent of the chess "pawn", the least powerful piece which is most often captured. - |
| PXE | BIOS, Booting, Diskless Computers, Networking | Pre-boot eXecution Environment - a method of booting a computer from a network |
| Q |
| QA | Engineering Process | Quality Assurance - |
| QAM | Signal Processing, Telecommunications | Quadrature Amplitude Modulation - |
| QDR | Computer Memory Technology, SDRAM, Solid State Devices | Quad Data Rate - |
| QIC | Hardware, Tape Drives | Quarter Inch Cartridge tape - |
| QIC | Hardware, Tape Drives | Quarter Inch Cartridge tape - |
| QIT | NCR Hardware ca. 1997 | Quad Interrupt Controller - Resident on the Quad processor board and is designed to provide enhancements to the VIC to allow greater than 8 processors. One or two processors on the Quad board are configured as Extended VIC Processors and receive interrupts from the VIC. Thus the VIC routes interrupts from the I/O board (or other source) to the QIC and the QIC routes the interrupt to one of two processors on the Quad board. See the Quad Interrupt Controller (QIC2) Functional Specification for details. |
| QNC | Wireless Networks | Quick Net Connect - q 2nd generation circuit switched technology for wireless networks, specifically CDMA ( IS-95 ) networks. Now (2006) superceded by faster technologies such as 1xRTT and EV-DO . |
| QoS | Network Engineering | Quality of Service - a specified level of throughput guaranteed by ATM (but not by fast ethernet or frame relay) |
| QPSK | Telecommunications Engineering | Quadrature Phase Shift Keying - |
| R |
| RAD | Applications Programming | Rapid Application Development - |
| RADAR | RADAR Electronics | RAdio Detection And Ranging - |
| RADIUS | Network Protocols | Remote Authentication Dial-In User Service - this is a GNU{href#GNU} project. See Diameter. |
| RAID | Hardware Engineering | Redundant Array of Independent (nee Inexpensive) Disks - |
| RAM | Computer Memory Technology, Solid State Devices | Random Access Memory - |
| RAMAC | Computer Industry | Random Access Method of Accounting Control - first disk drive invented in 1956 at IBM by Reynold Johnston |
| RAS | Computer Marketing | Reliability, Availability, and Serviceability - |
| RAS | Computer Industry, Networking | Remote Access Service - a local network connection to a remote computer usually via a modem or a router. |
| RBAC | Access Control, Security | Role-Based Access Control - |
| RBL | Email, Internet, SPAM | Realtime Black-hole Lists - lists of WWW servers which refuse to block SPAM |
| RBOC | Telecommunications | Regional Bell Operating Company - aka BOC |
| RBS | Information Technology, Programming | Rule-Based System - a general concept of which a BRMS is an instantiation. |
| RCA | Engineering | Root Cause Analysis - |
| RCA/CLCA | Engineering | Root Cause Analysis / Closed-Loop Corrective Action - |
| RCC | Marketing | Recovery Control Catalog - |
| RCERT | Department of Defense (DOD), U.S. Army | Regional Computer Emergency Response Team - |
| RDAC | Hardware Engineering | Redundant Disk Array Controller - |
| RDBMS | Engineering | Relational DataBase Management System - |
| RDF | Web Authoring, XML application | Resource Description Framework, a.k.a. Resource Definition Format - a language which describes data objects i.e. data and its access and update methods |
| RDM | Engineering | Release Deployment Management - |
| RDRAM | Computer Memory chips | Rambus DRAM - DRAM designed by Rambus, Inc. that runs at 600 MHz using a memory access protocol called "Direct Rambus". Rambus licenses its memory design to other chip companies. |
| RETE | algorithms, Business Rules, Information Technology, Programming | is not an acronym but a word in most English dictionaries. As used here, it is an algorithm to optimize rule-based systems. - |
| RETE2 | algorithms, Business Rules, Information Technology, Programming | a variation of the RETE algorithm. - |
| RFC | Organization | Request For Change - |
| RFID | Computers, Retailing | Radio Frequency IDentifier - |
| RFP | Organization | Request For Proposal - |
| RFS | Engineering | UNIX Remote File System - |
| RHS | Business Rules, Programming | Right Hand Side - the code or syntax on the right or source side of an assignment statement; the code executed when a predicate condition is false; in a business rule, the code executed when the rule is false. |
| RI | Database Administration | Referential Indicator - |
| RIA | Applications Programming, Business Computing, Internet | Rich Internet Application - internet browser based applications |
| RIDs | Computer Authentication, Computer Security, Computer User Identification | Relative ID - domain-relative identifier, a user identifier which is unique relative to a domain or workgroup |
| RIM | Cellular Telephones, Computers, Internet | Research In Motion - a company which manufactures a sophisticated PDA called a BlackBerry |
| RISC | Engineering | Reduced Instruction Set Computer - |
| RJ15 | Telephone Line Connectors | Registered Jack 15 - |
| RJ45 | Telephone Line Connectors | Registered Jack 45 - |
| RJE | Communications (IBM, Legacy) | Remote Job Entry - |
| RLL | Disk Drives | Run Length Limited - an information encoding technique used on disk drives. Packs 50% more information than MFM. AKA 2,7 RLL because it limits runs of zeros from 2 to 7. |
| RLMF | Engineering | Release Level Management Facility - |
| RMA | Manufacturing | Return of Material Authorization - document giving authorization to return a malfunctioning unit to the manufacturer |
| RMD | DEC Computers, RSX-11M Operating System | Resource Monitoring Display - an RSX-11M DCL Command |
| RMI | Java | Remote Method Invocation - a method in which Java objects can be invoked from other Java Virtual Machines, possibly on different hosts. |
| ROI | Finance | Return On Investment - |
| ROTS | Buying, Electronic and Computer Military Components Marketing | Rugged Off The Shelf - See also COTS, GOTS, MOTS, NOTS |
| RPC | Software Engineering | Remote Procedure Call - |
| RPS | Engineering | Rotational Position Sensing - |
| RRAS | Computer Industry, Networking | Routing and Remote Access Service - a local network connection to a remote computer usually via a modem or a router. |
| RS-232 | Communications Standard | A transmission interface standard for digital communications. It features single-ended transmission at a signal rate of up to 20 kbps and a distance of up to 15 m. - |
| RS-422 | Communications Standard | A transmission interface standard for digital communications. It features balanced-line transmission at a signal rate of up to 100 kbps at a distance of up to 1200 m, or up to 10 Mbps at up to 12 m. - |
| RSA | Encryption, Security | Rivest, Shamir and Adleman - an encryption method named with the initials of the inventors. |
| RSACi | World Wide Web | Recreational Software Advisory Council on the Internet a.k.a. RSAC - |
| RSC | NCR Organization | Region Solutions Center - |
| RSG | NCR Organization | Retail Solutions Group - |
| RSM | Engineering | Replicated Storage Management - |
| RSVP | Internet, Network Layer, Network Protocols, TCP/IP | resource ReSerVation setup Protocol - |
| RSVP/LDP | Internet, Network Layer, Network Protocols, TCP/IP | ReSource reserVation Protocol - Label Distribution Protocol |
| RTC | Engineering | Real-Time Clock [Calendar] - |
| RTCP | Networking | Real-time Transport Control Protocol - |
| RTE | System Test/Benchmarking | Remote Terminal Emulator - |
| RTF | Graphics File Format | Rich Text Format - originated by Microsoft |
| RTM | NCR Software Products | Reliable Transport Module - |
| RTM | Engineering | Release To Manufacturing - |
| RTMP | (Apple) Networking | Routing Table Maintenance Protocol - |
| RTP | Networking | Real-time Transport Protocol - |
| RTSP | Application Layer, Internet, Network Protocols, TCP/IP | Real Time Streaming Protocol - |
| RUDP | Internet, Network Protocols, TCP/IP, Transport Layer | Reliable UDP - |
| RWU | Networks | Remote Wake-Up - |
| S |
| S-CDMA | Communications, Networking | Secure-CDMA, Secure - Code Division Multiple Access |
| S-HTTP | Application Layer, Internet, Network Protocols, TCP/IP | Secure HTTP - |
| S-TDMA | Communications, Networking | Secure-TDMA, Secure - Time Division Multiple Access |
| S-VHS | Motion Picture Engineering | Super VHS - an enhancement of the VHS standard that provides a better quality picture |
| S-video | Video Engineering | a system for providing chrominance and luminance component of an analog video signal to provide a higher quality picture - |
| S.M.A.R.T. | Hard Drives | Self-Monitoring, Analysis and Reporting Technology - (self-explanatory) |
| S/MIME | Internet Electronic Mail | Secure / Multipurpose Internet Mail Extension - |
| S2 | Industry | (a software company) - |
| SA | Networking | Service Agent - a network client that provides the location of one or more services |
| SA | Networking | Security Association - an instance of a shared security policy and encryption keys |
| SA | NCR Retail Solutions Group | Store Automation - |
| SaaS, SAAS | Computer Applications, Computer Software Industry | Software as a Service - offering third-parth data processing services (usually through a network) without requiring the purchase, possession or licensing of the software. |
| SACD | Audio, Compact Disc | Super Audio Compact Disk - a compact disc format for recording and playing audio. Primarily supported by Sony and Philips |
| SACL | Access, Computer, Permissions, Security | Service Access Control Lists - |
| SAIS | Sun Software | Sun Information Appliance Suite - |
| SAM | Organization | Storage and Adapter Management - |
| SAM | Software Product | Server Availability Manager - |
| SAM | MS Windows | a file suffix that means "sample" - |
| SAN | Data Storage, Networking | Storage Area Network - |
| SAR | ATM Communications Protocol | Segmentation and ReAssembly - |
| SAS | American Institute of Certified Public Accountants | Statement of Auditing Standard - |
| SAS | Computer Specifications, Computers, Hard Drives, Hardware Interfaces | Serial Attached SCSI [Small Computer System Interface] - |
| SAS | Computer Storage, Computers, IBM | Serial Attached Storage - IBM's name for their large peripheral storage boxes. |
| SASl | Computer Authentication Computer Security | Simple Authentication And Security Layer - |
| SATA | Computer Specifications, Computers, Hard Drives, Hardware Interfaces | Serial ATA [AT Attachment] - |
| SBS | Microsoft Products | Small Business Server - |
| SCA | SCSI cabling and connectors | Single Connector Attachment - |
| SCA | Wireless Communications, Wireless Networking, Wireless Radio | Software Communications Architecture - |
| SCB | Engineering | SCSI Cable Board - |
| SCCS | Engineering | Source Code Control System - |
| SCDE | Engineering | Standard C Development Environment - |
| SCE | Software Engineering Institute | Software Capability Evaluation - |
| SCF | Wireless Networking, WUSB | Service Capability Feature - |
| SCI | Computer Architecture | Scalable Coherent Interface, used by CC-NUMA - |
| SCM | Software Engineering | Software Configuration Manager - |
| SCM | Windows NT | Service Control Manager - |
| SCP | Linux, Network Security, Unix | Secure CoPy - |
| SCSI | Engineering | "Scuzzy" - Small Computer System Interface - a disk drive(and other devices) interface specification |
| SCTP | Application Layer, Internet, Network Protocols, TCP/IP | Stream Control Transmission Protocol - |
| ScTP | Telecommunications | Screened Twisted Pair - |
| SCU | Firmware Engineering | System Configuration Utility - |
| SDB | Marketing | Symbolic Debugger - |
| SDC | Organization | Security Descriptor Definition Language - |
| SDDL | Bluetooth, Networking | Asynchronous Connectionless Link - |
| SDK | Engineering | Software Development (or Developer's) Kit - |
| SDLC | Network Engineering | Synchronous Data Link Control - |
| SDLC | Software Engineering | Software Development Life Cycle - |
| SDR | Computer Memory Technology, SDRAM, Solid State Devices | Double Data Rate - |
| SDR | Wireless Communications, Wireless Networking, Wireless Radio | Software Defined Radio - |
| SDRAM | Computer Memory Technology, DRAM, Solid State Devices | Synchronous Dynamic Random Access Memory - |
| SDS | Solaris, Sun | Solstice Disk Suite - a volume manager for SunOS or Solaris |
| SDW | Systems Engineering | Scalable Data Warehousing - |
| SE | SCSI Terminology | Single-Ended - |
| SECC | Computer Cases, sheet metal | Steel Electrogalvanized Cold-rolled Coil - |
| SEEPROM | Computer Engineering | Serial Electrically Erasable Programmable Read Only Memory - |
| SEHI | Cabletron Systems Product | Intelligent Stackable Ethernet Hub - |
| SEI | Carnegie-Mellon University | Software Engineering Institute - based at Carnegie-Mellon University, an organization for measuring the software engineering capability and maturity of software engineering organizations |
| SEI CMM | Computer Software Industry | Software Engineering Institute Capability Maturity Model - |
| SELinux | Access Control, Computer Security, Linux | Security Enhanced Linux - |
| SEPG | NCR Engineering Organization | Software Engineering Process Group - |
| SESAC | Copyright Organizations, Performance Rights Licensing | Society of European Stage Authors and Composers - Founded in 1930, SESAC is the second oldest of the three "performing rights societies" set up under U.S. Copyright Law. By the mid-1930's, American publishers outnumbered the European publishers, so the name was shortened to "SESAC, Inc." |
| SET | Electronic Commerce | Secure Electronic Transactions - |
| SFA | Corporate Finance | Simultaneous Financial Analysis - |
| SFPM | NCR Engineering Organization | Storage Features and Partner Management - |
| SFR | Engineering | System Fault Report - |
| SFR | ATI, Computer Gaming, Computer Graphics, Computer Video, NVidia | Split Frame Rendering - |
| SFTP | Telecommunications | Shielded Foil Twisted Pair - |
| SG | Organization | Systemedia Group - |
| SGA | Oracle Databases | System Global Area - shared memory allocated for buffering, record locking, joins |
| SGC | Internet Commerce | Server Gated Cryptography - |
| SGML | Web Authoring | Standard Generalized Markup Language - |
| SHA | Network Protocol | Secure Hash Algorithm - produces a 160-bit digest. |
| SHV | Electronic Components Industry | Standard High Volume - describes components manufactured in commercial quantities |
| SI | 1997, NCR Organization | Systems Integration - a department under GPS, General Purpose Systems |
| SID | Computer Networking, Mobile Telephony | System IDentifier, System IDentification number, Security IDentifier - |
| SIGINT | Battlespace, Defense, Intelligence, Military, Security | SIGnal INTelligence - |
| SIIPS-IAD | Banking Computer Applications | Scalable Image Item Processing System - Image Archive and Delivery |
| SIIPS-POD | Banking Computer Applications | Scalable Image Item Processing System - Proof Of Deposit |
| SIM | Cell Phones, Mobile Phones, Wireless Telecommunications: Mobile Phones | Subscriber Identity Module - |
| SIMD | Processor Architecture | Single Instruction Multiple Data stream - the capability of processing multiple sets of data with one instruction execution |
| SIO | NCR Engineering (1995 - archaic) | System InterOperability - |
| SIOP | Engineering | System InterOPerability - |
| SIOP | Engineering | SCSI I/O Processors - |
| SIP | Internet Protocols, VoIP | Session Initiation Protocol - a telecommunications protocol which common to VoIP |
| SIT | Engineering Process | Systems Integration Test - |
| SKEME | Networking Protocol | Secure Key Exchange Mechanism - |
| SLA | Networking | Service Level Agreement - level of service or priority of network traffic provided for a given network layer or user |
| SLA | Internet Protocol | Site Level Aggregator - - |
| SLAN | NCR Parallel Systems | System Local Area Network - a LAN for connecting the AWS to a 5100C/M |
| SLC | NCR Organization | Software Leadership Council - |
| SLDRAM | Computer Memory | A modification of Synchronous Dynamic Random Access Memory (SDRAM) which uses a multiplexed bus to transfer the data bits. - |
| SLIP | Engineering | Serial Line Interface Protocol - |
| SLP | Network Protocol | Service Location Protocol - discovers the existence, location and configuration of networked services in enterprise networks |
| SMART | ATA-2, EIDE, Hard Drives, IDE | Self-Monitoring, Analysis and Reporting Technology - (self-explanatory) |
| SMB | Networking | Server Message Block - protocol used by MS Windows to share files. Samba uses this. |
| SMD | Engineering | Storage Module Device - |
| SMDS | Engineering | Switched (Dial-up) Multi-Megabit Digital Service - |
| SME | Marketing | Small to/and Medium [sized] Enterprise - |
| SMF | Marketing | System Management Facility - |
| SMI | Networking | Structure of Management Information - a specification for SMI |
| SMIL | Web Authoring | Synchronized Multimedia Integration Language - |
| SMON | Oracle Databases | System MONitor process - |
| SMP | Computer Architecture | Symmetric Multi-Processor, Symmetric Multi-Processing - |
| SMRP | Marketing, Sales | Suggested Manufacturer's Retail Price - |
| SMS | Telecommunications; Mobile/Cell Phones | Short Message Service - a means for sending short text messages to cell phones. |
| SMS | Windows System Administration | Systems Management Server - |
| SMT | Computer Architecture | Simultaneous Multi-Threading - real-time parallel processing on a CPU; Intel calls this "hyper-threading" |
| SMTP | Application Layer, Internet, Network Protocols, TCP/IP | Simple Mail Transfer Protocol - |
| SNA | Engineering | Systems Network Architecture - network protocol invented by IBM |
| SNMP | Application Layer, Internet, Network Protocols, TCP/IP | Simple Network Management Protocol - |
| SNO | Engineering | Super Node Board - |
| SNP | Engineering | Super Node - |
| SO | Manufacturing | Stop Order - |
| SOA | Business, Information Services | Service Oriented Architecture - |
| SOAP | HTTP, XML, XML Messaging | Simple Object Access Protocol - the de facto standard for XML messaging. |
| SOCKS | Application Layer, Internet, Network Protocols, TCP/IP | Socket Secure (Server) - |
| SOHO | Computer Marketing | Small Office / Home Office - |
| SOHO | NASA | SOlar and Heliospheric Observatory - |
| SONET | Networking | Synchronous Optical Network, the North American analog of ITU-T's - |
| SONET-MIB | Networking | Synchronous Optical Network - Management Information Base |
| SONET/SDH | Computer Architecture | Synchronous Optical Network/ Synchronous Digital Hierarchy - the modern (2002), global data transport standards |
| SOV | Design Engineering | Single Operational View - user sees multiple computer resources as one computer or one system |
| SOW | Dell Certifications, Dell Computer Services, Dell Computers | Statement Of Work - |
| SP2 | Computer System Architecture, IBM | Scalable POWERparallel 2 - a scalable multiprocessor architecture based on a distributed memory model |
| sp34k | blogs, Internet Gaming, odd stuff (not an acronym), slang | Pronounced "speek", means "speak". - |
| SPAM | Email, Internet | SPAM - (not an acronym) unsolicited or unwanted email; junk email |
| SPAP | Networking | Shiva Password Authentication Protocol - |
| SPDIF | Computer or Audio Electronics Sound, Motherboards, Motion Picture Engineering, sound cards | Sony/Phillips Digital Interface - a digital audio connector specification |
| SPE | NCR Organization | Server Platform Engineering - |
| SPECS | Engineering | System Problem/Enhancement Control System - |
| SPF | Networking | Shortest Path First - |
| SPG | NCR Engineering Organization | Software Process Group - |
| SPI | Networking Routers | Security Parameter Index - an IP address and an integer which identify a specific Security Association (SA) |
| SPI | Networking | Stateful Packet Inspection - a method for screening IP packets in a firewall |
| SPIN | Software Engineering | Software Process Improvement Group - |
| SPSS | Science, Software Package | Statistical Package for Social Science - a software bundle of programs that execute statistical calculations. |
| SPX | Engineering | System Performance Executive - |
| SQL | DataBase Engineering | "Sequel" - Structured Query Language |
| SQL/PSM | DataBase Engineering | Structured Query Language / Persistent Stored Module - |
| SQR | DataBase Engineering | Structured Query Reporting - a language associated with Brio and PeopleSoft products. |
| SRAM | Solid State Devices | Static Random Access Memory - |
| SRI | Organization | Stanford Research Institute - |
| SRP | Microsoft Security Policy | Software Restriction Policy - |
| SRS | Software Documentation | System Requirements Specification - |
| SS | NCR Global Support | Support Sentinel - |
| SS | NCR Marketing | Sales Specialist or Solutions Specialist - |
| SS7 | Telecommunications, Telephone Services | System Signaling 7 - |
| SSA | Storage Engineering | Serial Storage Architecture - similar in function to SCSI and FiBRe Channel |
| SSC | Engineering | Shared SCSI Connection - |
| SSCS | ATM Communications Protocol | Service Specific Convergence Sub-layer - |
| SSE | INTEL Computer Architecture | Streaming SIMD Extensions - a set of 67 new instructions added to the Intel x68 CPU chips starting with the Pentium III. Also known as KNI and MMX2 |
| SSE2 | INTEL Computer Architecture | Streaming SIMD Extensions 2 - a set of 144 new instructions added to the Intel X86 CPU chips starting with the Pentium 4. The set includes on-chip 64-floating point instructions. |
| SSE3 | INTEL Computer Architecture | Streaming SIMD Extensions 3 - a set of 13 instructions added to the Intel X86 CPU chips starting with the Pentium 4 Prescott. Curiously enough, the instructions were primarily related to mathematics and synchronizing threads. |
| SSH | OS Scripting | Secure SHell - |
| SSID | Networking | Service Set Identifier - used to identify a wireless network |
| SSL | Network Engineering | Secure Socket Layer - |
| SSM | Engineering | Software Storage Management - |
| SSS | Engineering | Symptom Signatures Specification - |
| SSTL | DDR SRAM, Dynamic Memory Technology | Series Stub Terminated Logic - |
| ST | NCR Marketing | Solution Team - |
| STAB | NCR Organization | Wal*Mart Stabilization Team (in Bentonville, AR) - |
| STB | Cable Television, Digital Cable | Set-Top Box - |
| STL | C++ | Standard Template LiBRary - |
| STN | LCD Panels, Manufacturing and Technology, monitors | Super Twist Nematic - |
| STP | Data Communications Cables | Shielded Twisted Pair(s) - |
| SUS | Computer Operating System Portability, UNIX OS | Single UNIX Specification - |
| SUS | IBM, SAN | StartUp Subsystem; System StartUp Services - |
| SVC | Engineering | SAN(Storage Area Network) Volume Controller - |
| SVG | Graphic Engineering, Video Engineering | Scalable Vector Graphics - |
| SVR4 | ATT, UNIX | System fiVe Release 4 - A milestone release of the AT{href=#ATT}&T UNIX{href=#UNIX} computer operating system. |
| SWAP | Home Device Engineering | Shared Access Wireless Protocol - |
| System ID | OSI Networking | System IDentifier - the part of the NDSAP which identifies the system (hardware or router), usually a MAC address. |
| T |
| T.120 | Internet Communications, Microsoft NetMeeting, Networking | T.120 - an ITU standard consisting of a number of communications protocols and application interfaces which allow real-time multi-point audio, video and data conferencing. |
| T1 | Telecommunications Standards | North American level 1 Time Division Multiplexing (TDM) standard, 1.544 megabits/second - |
| T1-MIB | Telecommunications Standards | North American level 1 Time Division Multiplexing (T1) Management Information Base - |
| T1/E1 | Telecommunications Standards | The generic term for electronic signals of North American level 1 Time Division Multiplexing (TDM) - |
| T3 | Telecommunications Standards | North American level 1 Time Division Multiplexing (TDM) standard, 45 megabits/second - |
| T38 | FAX, Internet, T38, Telephony, VoIP | T38 - a protocol specification for FAX over the internet or FoIP . |
| T9 | Cellular Phones, Mobile Phones, Telecommunications, Wireless Networks | Typing on 9 keys - the use of the telephone keypad on mobile phones to enter (address) data and send text messages: 2 through 9 are letters and the space or "#" key makes nine. |
| TALI | Internet, Network Protocols, TCP/IP, Transport Layer | Transport Adapter Layer Interface - |
| TAP | Hardware Engineering | Test Access Port - |
| TAP | Software Product | Tape Array Plus - |
| TAPI | Telephony Engineering | Telephone Applications Programming Interface, Microsoft specification for a CTI - |
| TB | Computer Industry | TeraByte - technically equal to 1,099,511,627,776 (1024*1024*1024) bytes, 1024MB(GigaBytes), 1,048,576KB(MegaBytes) or 1,073,741,824KB(KiloBytes); less formally, 1,000,000,000,000 bytes, 1,000,000MB or 1,000,000,000KB |
| TCE | Organization | Targeted Customer Environment - |
| TCG | Access Control, Networking, Security | Trusted Computing Group - |
| TCL | Computer Manufacturing | Tool Command Language - |
| TCO | Accounting, Marketing | Total Cost of Ownership - |
| TCP | Internet, Network Protocols, TCP/IP, Transport Layer | Transmission Control Protocol - |
| TCP/IP | Network Engineering | Transmission Control Protocol / Internet Protocol - |
| TCPSAT | Network Engineering | Transmission Control Protocol for SATellites - |
| TDM | Transportation Industry | Transportation Demand Management - |
| TDM | Electronic Data Transmission Protocols | Time Division Multiplexing - |
| TDMA | Cell Phones, Wireless Telecommunications: Mobile Phones | Time Division Multiple Access - |
| TDP | NCR Teradata Engineering | Teradata Director Program - |
| TDR | Telecommunications | Time Domain Reflectometry - a method of determining cable length or distance to a cable fault, especially for coaxial cable. This is also the fundamental principle used in radar. |
| TE | Object Orientation | Type Enforcement - |
| TE | NCR Software Product | TOP END - |
| TEC | Organization | Technical Education Center - |
| TEC | US Government? | Topographic Engineering Center - |
| TEC | Physics Research | Time Expansion Chamber - |
| TEC | Language Translation | Translational English Corpus - |
| TEQUEL | NCR Teradata Database Administration | TEradata QUEry Language - |
| tera | Computer Industry | a prefix meaning one billion (10**9) or in powers of 2, 1024*1024*1024 (2**30) - |
| TESEO | Electronic Commerce | Technologies and Experiments to Support Electronic cOmmerce - |
| TFT | Manufacturing and Technology, Solid State Devices; LCD Panel monitors | Thin Film Transistor - |
| TFTP | Application Layer, Internet, Network Protocols, TCP/IP | Trivial File Transfer Program - |
| TIA | Cell Phones, Mobile Phones, Telecommunications | Telecommunications Industry Association - |
| TIFF | Graphics File Format | Tag Image File Format - |
| TinyMUSH | Computer Games | A MUD (Multi-User Dungeon) which uses a primitive language to create objects within the game. See MUD, MUSH. - |
| TKIP | Encryption, Networking | Temporal Key Integrity Protocol - used to time the periodic generation of new encryption keys. |
| TLA | Internet Protocol | Top-Level Aggregator - part of the IPv6 Aggregatable Address |
| TLA | Most Industries | Three-Letter Acronym - |
| TLD | Internet, Web, World Wide Web, WWW | Top Level Domain - e.g. .com, net, .us - the letters after the last period but before any other special characters of a URI or URL . |
| TLI | Network Engineering | Transport Layer Interface - |
| TLS | Encryption, Networking | Transport Layer Security - an EAP protocol |
| TN | LCD Panels, Manufacturing and Technology, monitors | Twisted Nematic - |
| TNC | Network Access Management, Network Security | Trusted Network Connect - Trusted Computing Group's Product. Competes with NAC and NAP |
| TOS | NCR Teradata Engineering | Teradata Operating System - |
| TPC | Database Performance | Transaction Performance Council - |
| TPF | International Business Machines | Transaction Processing Facility - IBM's high-volume, mission-critical transaction processing solution for OS/390. Concentrates on recoverability speed rather than robustness. Both transaction speed and recovery speed are very fast. |
| TPS | Engineering | Transactions Per Second - |
| TRG | Data Diagram | Transformation Graph - |
| TRIP | Internet, Network Protocols, Routing, TCP/IP | Telephony Routing over IP - |
| TS | NCR Engineering Organization | Technical Support - |
| TSAPI | Telephony Engineering | Telephone Services Applications Programming Interface, Novell specification for CTI - |
| TSB | Telecommunications | Telecommunications Systems Bulletin - |
| TSM | Computer Systems Administration | Tivoli Storage Management - |
| TSO | IBM Operating Systems | Time Sharing Option - |
| TSOP | Chip Types, Solid State Device Packaging | Thin Small Outline Package - small chip, usually with leads on all four sides and wave-soldered to the printed circuit board. |
| TSR | SIIPS | Tray Set Report - |
| TTV | DataBase, Database Administration | Transaction Time Value - the time when the transaction was valid or the time after which the transaction is no longer valid. A method of providing an audit trail in a database consisting of adding two times to the record, a start (valid) timestamp column and a stop (invalid) timestamp column where the stop timestamp is more recent than the start. Also called PITA. |
| TWIST | "chips", "chips", (Apple) Networking, Access | Transaction Workflow Innovation Standards Team - |
| U |
| UA | Networking | User Agent - a network client which looks for the location of one or more services |
| UART | Chips, Motherboard "Glue" | Universal Asynchronous Receiver-Transmitter - |
| UCD | Marketing | Used Cylinder Descriptor List - |
| UDDI | HTML, Internet, WWW, XML | Universal Description, Discovery and Integration protocol - |
| UDP | Communications Protocols, Ethernet, Internet | User Datagram Protocol - |
| UFD | DEC Computers, RSX-11M Operating System | User File Directory - the lower level directory of the two-tier hierarchy on a PDP-11 file system. See also MFD. |
| UI | Database Administration | Unique Identifier - |
| UI | NCR Culture | Under Investigation - |
| UIA | Computer Industry | Union of International Associations - |
| UIC | Digital Equipment Corporation RSX-11M Operating System for the PDP-11 | User Identification Code - a 3-digit, zero filled octal number which is specific to a non-privileged user login. This number is also the login directory (UFD) of the user. |
| UIP | Organization | Under Investigation by Plant - |
| UMA | Motherboard Standards | Unified Memory Architecture - |
| UMB | DOS, MSDOS | Upper Memory Blocks - usually memory above 640kb, although in newer systems this boundary could be 1MB or 2MB. |
| UML | Languages, Software Design | Unified Modeling Language - |
| UMM | Object Oriented Software Engineering | Unified Modeling Language - |
| UMTS | Radio Telephony, Wireless Networking | Universal Mobile Telecommunication System - a third generation cellular network used in Japan that uses W-CDMA as the underlying wireless interface. |
| UNC | Networking | Universal Naming Convention - |
| UNIX | Computer Operating Systems | UNiplexed Information and Computing Service - |
| UPF | Engineering | User Procedure Framework - |
| UPI | Marketing | Unique Primary Index - |
| UPS | Engineering | Uninterruptible Power Supply - |
| URI | HTML, Internet, Web | Universal Resource Identifier - a superset of URLs |
| URL | HTML, Internet, Web | Uniform Resource Locator - a subset of URIs |
| USI | Marketing | Unique Secondary Index - |
| UTC | Engineering | Unit Test Complete - |
| UTP | Telecommunications | Unshielded Twisted Pair - |
| UUCP | UNIX commands | Unix to Unix CoPy - |
| UWB | Wireless Networks | Ultra Wide Band - |
| V |
| VAR | Organization | Value Added Reseller - |
| VB | Software Engineering | Visual Basic (a Microsoft programming language) - |
| VB CCE | Software Engineering | Visual Basic Control Creation Edition - |
| VBA | Bill Gates self-promotion, Microsoft | Visual Basic for Applications - |
| VBI | Television Transmission Signals | Vertical Blanking Interval - |
| VBVM | Software Engineering | Visual Basic Virtual Machine - |
| VC | Computer Industry, Enterprise | Venture Capital - money used to fund business startups |
| VCE | Internet Publishing, SGML | Virtual Community Engine - online support for VCML |
| VCM | Windows 98 | Version Control Manager - |
| VCML | Internet Publishing, SGML | Virtual Community Modeling Language - allows database lookups within HTML |
| VCML | simulation | Virtual Cell Math Language - |
| VCOE | Engineering | Virtual Center of Excellence - |
| VCR | Motion Picture Engineering | Video Cassette Recorder - |
| VE | Graphical User Interface | VIrtual Environment - |
| VGA | Computer monitors, CRTs | Video Graphics Array - a common type of computer monitor or screen |
| VGS | Software Engineering | Virtual Game Station - |
| VHS | Motion Picture Engineering | a video cassette standard - |
| VIC | NCR Hardware ca. 1997 | Voyager Interrupt Controller - Resident on the Voyager board and is designed to provide the distribution of interrupts from two Micro Channel sources and the processor mother board to up to 8 processors. The VIC has a built-in PIC for each processor. See the Voyager Interrupt Controller (VIC) ASIC Functional Specification 530-0006214 for details. |
| VLAN | Networking | Virtual LAN - |
| VLK | Microsoft | Volume License Key - |
| VLM | Novell NetWare | Virtual Loadable Module - |
| VLSM | OSI Networking | Variable-Length Sub-net Mask - |
| VM | Computer Engineering, IBM Systems | VIrtual Machine - |
| VM | Telecommunications Networking | Voice/Video Mail - |
| VME | Computer Bus Architecture | Versa Module Eurocard, Versabus Module Europe - a bus architecture pioneered by Motorola. |
| VNC | Computer Connectivity, Computer Networks, Computers | Virtual Network Computer - |
| VOD | Networking | Video On Demand - |
| VoIP | | Telephony, Internet, PSTN Voice over Internet Protocol or Voice over the Internet: Internet Telephony - |
| VP | NCR Product | Value Plus [CD] - |
| VP | Corporate Organization | Vice President - |
| VPN | Network Engineering | Virtual Private Network - |
| VPX | Telecommunications, Telephones, Telephony Engineering | Virtual Private eXchange - a Virtual PBX - a service proviced by a third party that gives the appearance and functionality of a PBX without any extra hardware at the site. |
| VR | Networking | VIrtual Router - |
| VR | Graphical User Interface | VIrtual Reality - |
| VRG | Computer Chips, Integrated Circuits, Solid State Devices | Vertical Replacement Gate - |
| VRG | Computer Graphics, Computer Hardware, Human Vision Research | Vision Research Graphics - a company that makes hardware products for teaching and research in human vision. |
| VRM | Hardware Engineering | Voltage Regulator Module - |
| VRRP | Internet, Network Layer, Network Protocols, TCP/IP | Virtual Router Redundancy Protocol - |
| VSAM | IBM Systems | Virtual Storage Access Method - |
| VSB | Hardware Engineering | Voyager System Bus - |
| VSE | IBM Systems | Virtual Storage Extension - |
| VSELP | Cell Phones, Wireless Telecommunications: Mobile Phones | Vector Sum Excited Linear Predictor - |
| VSG | Computer Hardware | Video Signal Generator - |
| VSG | Computer Hardware, Human Vision Research | Visual Stimulation Generator - |
| VSG | Medicine, Microbiology | Video Signal Generator - |
| VSP | Internet, Telephony, VoIP | Voice Service Provider - voice as in telephones, network chat |
| VSP | Networking, VPN | VPN Service Provider - as in Virtual Private Network Service Provider |
| VTAM | IBM Systems | Virtual Telecommunications Access Method - |
| VTOC | Disk Storage | Volume Table Of Contents - |
| VUE | Hewlett Packard Software | Visual User Environment - |
| VXML | Web Authoring | Voice Extensible Mark-up Language - |
| W |
| W2K | Microsoft, Operating System | Windows 2000 - |
| W3C | HTML, Web Authoring | World Wide Web Consortium - the group which ratifies the SGML specification and its derivatives, HTML, DTD, XML and others |
| WAI | HTML, Web Authoring | Web Accessibility Initiative - |
| WAN | Engineering | Wide Area Network - |
| WAP | Cellular Phones, Mobile Phones, Telecommunications, Wireless Networks | Wireless Application Protocol - |
| WAP | Cellular Phones, Mobile Phones, Telecommunications, Wireless Networks | Wireless Access Protocol - |
| WBTS | Microsoft, Network Computers | Windows-Based Terminal Server - |
| WCCP | Application Layer, Internet, Network Protocols, TCP/IP | Web Cache Control Protocol - |
| WCDMA, W-CDMA | Radio Telephony, Wireless Networking | Wideband Code Division Multiple Access - a third generation cellular network based on CDMA . |
| WCS | NCR Organization | Worldwide Customer Services - |
| WDS | Networking, Wireless | Wireless Distribution Service - |
| WEP | Encryption, Networking | Wired Equivalent Privacy - |
| WFM | Intel Specification | Wired For Management - enables remote (over a LAN or WAN) software and hardware management of PC |
| WGST | NCR Organization | Wal*Mart Global Support Team - |
| Wi-Fi | Wireless Networks | Wireless Fidelity - (go figure) wireless connection to the internet |
| WiFi | Wireless Networks | Wireless Fidelity - (go figure) wireless connection to the internet |
| wiki | (not an acronym) Internet | a server program allowing collaborative construction or editing of a web site by means of a web browser; such a web site. - |
| WiMAX | Cellular Phones, Mobile Phones, Telecommunications, Wireless Networks | Worldwide Interoperability for Microwave [X]Access - |
| WiMedia | Wireless Networks | Wireless Media transmission via Ultra Wide Band technology. Used for set-top boxes, displays etc. - |
| WIN-TCP | Engineering | Wollongong's version of TCP/IP - |
| WinCLI | Microsoft Windows Software Development | Windows Call-Level Interface - |
| WINS | Networking | Windows Internet Naming Service - |
| WLAN | Networking | Wireless Local Area Network - |
| WLNP | Cellular Telephones | Wireless Local Number Portability - |
| WMAN | Networking | Wireless Metropolitan Area Network - |
| WMB | Microsoft Windows Networking, Windows File and Printer Sharing | Workgroup Master Browser - |
| WMI | Scripting, Windows 2000, Windows Server 2003, Windows XP | Windows Management Instrumentation - |
| WML | Internet | Wireless Markup Language - |
| WORA | Java | Write Once Run Anywhere - |
| WORM | Computer Engineering | Write Once Read Many times - a mass storage device with those properties |
| WPA | Networking | Wi-Fi Protected Access, Wireless Protected Access - |
| WPA-PSK | Networking | Wi-Fi Protected Access - Pre-Shared Key |
| WPAN | Networking | Wireless Personal Area Network - |
| WPS | NCR Organization | Worldwide Professional Services (a.k.a. Professional Services) - |
| WS | NCR Organization | Worldwide Services - |
| WSDL | HTTP, Internet, XML | Web Services Description Language - |
| WSPC | NCR Organization | Worldwide Spare Parts Center - |
| WUSB | Network Communications Protocol | Wireless USB or Wireless Universal Serial Bus. See also USB. - |
| WWW | The Internet | the World-Wide Web - |
| X |
| X86 | INTEL Computer Architecture | IX86 - The basic Intel architecture instruction set. Also known as ISA among erudite Intel associates. |
| XDMCP | Graphical User Interface, Linux, Unix | X Display Manager Control Protocol - |
| XIL | Sun Software | X Imaging LiBRary - |
| XLL | Web Authoring, XML | eXtensible Link Language - |
| XML | Web Authoring | eXtensible Markup Language, a subset of SGML - |
| XNS | Networking Protocol | Xerox Network Services - |
| XOR | Computer Programming | eXclusive OR, a binary operation comparing two bits or binary digits the result of which is 0 if the bits are the same or 1 if the bits are different. - |
| XOT | Internet, Network Protocols, TCP/IP, Transport Layer | X.25 Over TCP - |
| XPG4 | Open Computing Standards | X-Open Portability Guide version 4 - |
| XSL | Web Authoring | eXtensible Style-sheet Language - used to specify style sheets for XML documents |
| XSLT | Web/Internet Programming | XSL Transformation - |
| XT | IBM, Marketing, PC | eXtended Technology - as in PC XT, IBM PC XT or IBM XT, released in 1983, it was the next generation of IBM |
| XTA | Disk Drives | XT Attachment - a disk drive interface specification, see ATA. XT probably taken from IBM XT |
| XTLA | Acronyms - Humor | eXtended Three Letter Acronym, or eXtended TL Annotation - |
| Y |
| YIGA | Engineering | Ynet Interface Gate Array - |
| YMCA | Engineering | Ynet MicroChannel Adapter - |
| YMMV | Email & Newsgroups | Your Mileage May Vary - |
| YNET | NCR Parallel Systems | Y-Tree Topology Network - Used to interconnect multiple processors in NCR 3600 systems |
| Z |
| ZAK | Microsoft Products | Zero Administration Kit - |
| ZAW | Microsoft Windows | Zero Administration Windows - |
| ZEN | Novell Networking | Zero Effort Networks - |
| ZigBee | Wireless Networks | a wireless network standard for sensor networks and industrial control characterized by low power consumption (i.e. long battery life.) - |
| ZIP | (Apple) Networking | Zone Information Protocol - |
