List of computing and IT abbreviations

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This is a list of computing and IT abbreviations.


Contents: 0–9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
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[edit] 0–9

  • /. — Slashdot
  • 1GL — First-Generation Programming Language
  • 10B2 — 10 Base2
  • 10B5 — 10 Base5
  • 10B-F — 10 Base-F
  • 10B-FB — 10 Base-FB
  • 10B-FL — 10 Base-FL
  • 10B-FP — 10 Base-FP
  • 10B-T — 10 Base-T
  • 100B-FX — 100 Base-FX
  • 100B-T — 100 Base-T
  • 100B-TX — 100 Base-TX
  • 100BVG — 100 BaseVG
  • 286 — Intel 80286 processor
  • 2B1Q — 2 Binary 1 Quaternary
  • 2GL — Second-Generation Programming Language
  • 3GL — Third-Generation Programming Language
  • 386 — Intel 80386 processor
  • 486 — Intel 80486 processor
  • 4B5BLF — 4 Byte 5 Byte Local Fiber
  • 4GL — Fourth-Generation Programming Language
  • 5GL — Fifth-Generation Programming Language
  • 8B10BLF — 8 Byte 10 Byte Local Fiber

[edit] A

  • AAT — Average Access Time
  • AA — Anti-Aliasing
  • AAA — Authentication Authorization, Accounting
  • AABB — Axis Aligned Bounding Box
  • AAC — Advanced Audio Coding (audio compression format defined by the MPEG-2 standard)
  • AAL — ATM Adaptation Layer
  • AALC — ATM Adaptation Layer Connection
  • AARP — AppleTalk Address Resolution Protocol
  • ABI — Application Binary Interface
  • ABM — Asynchronous Balanced Mode
  • ABR — Area Border Router
  • ABR — Auto Baud — Rate Detect
  • ABR — Available Bit Rate
  • AC — Alternating Current
  • AC — Acoustic Coupler
  • ACD — Automatic Call Distributor
  • ACF — Advanced Communications Function
  • ACF NCP — Advanced Communications Function — Network Control Program
  • ACID — Atomicity Consistency Isolation Durability
  • ACK — ACKnowledgement
  • ACL — Access Control List
  • ACL — Active Current Loop
  • ACM — Association for Computing Machinery
  • ACME — Automated Classification of Medical Entities
  • ACPI — Advanced Configuration and Power Interface
  • ACR — Allowed Cell Rate
  • ACR — Attenuation to Crosstalk Ratio
  • AD — Active Directory
  • AD — Administrative Domain
  • ADC — Analog-To-Digital Converter
  • ADC — Apple Display Connector (DVI variant)
  • ADB — Apple Desktop Bus
  • ADCCP — Advanced Data Communications Control Protocol/Procedures
  • ADO — ActiveX Data Objects
  • ADSL — Asymmetric Digital Subscriber Line (variant of DSL)
  • ADT — Abstract Data Type
  • AE — Adaptive Equalizer
  • AES — Advanced Encryption Standard
  • AF — Anisotropic Filtering
  • AFP — Apple Filing Protocol
  • AGP — Accelerated Graphics Port (sometimes used with a suffix indicating the port's bandwidth, like AGP4x)
  • AH — Active Hub
  • AI — Artificial Intelligence
  • AIX — Advanced Interactive Executive
  • Ajax — Asynchronous JavaScript and XML
  • AL — Active Link
  • AL — Access List
  • ALGOL — Algorithmic Language
  • ALSA — Advanced Linux Sound Architecture
  • ALU — Arithmetic and Logical Unit
  • AM — Active Matrix
  • AM — Access Method
  • AM — Active Monitor
  • AM — Amplitude Modulation
  • AMD — Advanced Micro Devices
  • AMR — Audio Modem Riser
  • ANN — Artificial Neural Network
  • ANSI — American National Standards Institute
  • ANT — Another Neat Tool
  • AoE — ATA over Ethernet
  • AOP — Aspect-Oriented Programming
  • APCI — Application-Layer Protocol Control Information
  • API — Application Programming Interface
  • APIC — Advanced Programmable Interrupt Controller
  • APIPA — Automatic Private IP Addressing
  • APL — A Programming Language
  • APS — Accunet Packet Service
  • APR — Apache Portable Runtime
  • ARC – Advanced RISC Computing
  • ARIN — American Registry for Internet Numbers
  • ARM — Advanced RISC Machines
  • ARP — Address Resolution Protocol
  • ARPA — Address and Routing Parameter Area
  • ARPA — Advanced Research Projects Agency (see also DARPA)
  • ARPANET — Advanced Research Projects Agency Network
  • AS — Access Server
  • ASCII — American Standard Code for Information Interchange
  • ASG — Abstract Semantic Graph
  • ASIC — Application Specific Integrated Circuit
  • ASLR - Address Space Layout Randomization
  • ASMP — Asymmetric Multiprocessing
  • ASN.1 — Abstract Syntax Notation 1
  • ASP — Application Service Provider
  • ASP (MS ASP) — Active Server Pages
  • ASR — Asynchronous Signal Routine
  • AST — Abstract Syntax Tree
  • ASSP — Application Specific Standard Product
  • AT — Advanced Technology
  • AT — Access Time
  • AT — Active Terminator
  • ATA — Advanced Technology Attachment
  • ATAG — Authoring Tool Accessibility Guidelines
  • ATAPI — Advanced Technology Attachment Packet Interface
  • ATM — Asynchronous Transfer Mode
  • AVC — Advanced Video Coding
  • AVI — Audio Video Interleaved
  • AWT — Abstract Window Toolkit

[edit] B

  • B2B — Business-to-Business
  • B2C — Business-to-Consumer
  • Bash — Bourne-again shell
  • BASIC — Beginner's All-Purpose Symbolic Instruction Code
  • BBP — Baseband Processor
  • BBS — Bulletin Board System
  • BCD — Binary Coded Decimal
  • BEEP — Blocks Extensible Exchange Protocol
  • BER — Bit Error Rate
  • BFD — Binary File Descriptor
  • BFS — Breadth-First Search
  • BGP — Border Gateway Protocol
  • BiDi — Bi-Directional
  • bin — binary
  • BINAC — Binary Automatic Computer
  • BIND — Berkeley Internet Name Daemon
  • BIOS — Basic Input Output System
  • BJT — Bipolar Junction Transistor
  • bit — binary digit
  • Blob — Binary large object
  • Blog — Web Log
  • BMP — Basic Multilingual Plane
  • BNC — Bayonet Neill-Concelman
  • BOINC — Berkeley Open Infrastructure for Network Computing
  • BOM — Byte Order Mark
  • BOOTP — Bootstrap Protocol
  • BPDU — Bridge Protocol Data Unit
  • BPEL — Business Process Execution Language
  • BPL — Broadband over Power Lines
  • bps — bits per second
  • BRR — Business Readiness Rating
  • BSA — Business Software Alliance
  • BSD — Berkeley Software Distribution (Unix variant)
  • BSoD — Blue Screen of Death
  • BSS — Block Started by Symbol
  • BT — BitTorrent
  • BT — Bluetooth
  • BTAM — Basic Telecommunications Access Method (an IBM OS/360 API)
  • BW — Bandwidth

[edit] C

  • CA — Certificate Authority
  • CAD — Computer-Aided Design
  • CAE — Computer-Aided Engineering
  • CAID — Computer-Aided Industrial Design
  • CAI — Computer-Aided Instruction
  • CAM — Computer-Aided Manufacturing
  • CAPTCHA — Completely Automated Public Turing Test to tell Computers and Humans Apart
  • CAT - Computer-Aided Translation
  • CAQ — Computer-Aided Quality Assurance
  • CASE — Computer-Aided Software Engineering
  • cc — C Compiler
  • CD — Compact Disc
  • CDE — Common Desktop Environment
  • CDMA — Code Division Multiple Access
  • CDN - Content Delivery Network
  • CDP — Continuous Data Protection
  • CD-R — CD-Recordable
  • CD-ROM — CD Read-Only Memory
  • CD-RW — CD-Rewritable
  • CDSA — Common Data Security Architecture
  • CERT — Computer Emergency Response Team
  • CES — Consumer Electronics Show
  • CF — Compact Flash
  • CFD — Computational Fluid Dynamics
  • CFG — Context-Free Grammar
  • CFG — Control Flow Graph
  • CG — Computer Graphics
  • CGA — Color Graphics Array
  • CGI — Common Gateway Interface
  • CGI — Computer-Generated Imagery
  • CGT — Computational Graph Theory
  • CHAP — Challenge-Handshake Authentication Protocol
  • CHS — Cylinder-Head-Sector
  • CIFS — Common Internet Filesystem
  • CIM — Common Information Model
  • CISC — Complex Instruction Set Computer
  • CJK — Chinese, Japanese, and Korean
  • CJKV — Chinese, Japanese, Korean, and Vietnamese
  • CLI — Command Line Interface
  • CLR — Common Language Runtime
  • CM — Configuration Management
  • CM — Content Management
  • CMMI - Capability Maturity Model Integration
  • CMOS — Complementary Metal-Oxide Semiconductor
  • CMS — Content Management System
  • CN — Canonical Name
  • CN — Common Name
  • CNC — Computer Numerical Control
  • CNR — Communications and Networking Riser
  • COBOL — Common Business-Oriented Language
  • COM — Component Object Model
  • CORBA — Common Object Request Broker Architecture
  • COTS — Commercial Off-The-Shelf
  • CPA — Cell Processor Architecture
  • CPA — Converged Packet Access
  • CPAN — Comprehensive Perl Archive Network
  • CP/M — Control Program/Monitor
  • CPRI — Common Public Radio Interface
  • cps — characters per second
  • CPU — Central Processing Unit
  • CR — Carriage Return
  • CRAN — Comprehensive R Archive Network
  • CRC — Cyclic Redundancy Check
  • CRLF — Carriage Return Line Feed
  • CRM — Customer Relationship Management
  • CRT — Cathode Ray Tube
  • CRUD — Create, Read, Update and Delete
  • CS — Cable Select
  • CS — Computer Science
  • CSE — Computer Science and Engineering
  • CSI — Common System Interface
  • CSRF — Cross-Site Request Forgery
  • CSS — Cascading Style Sheets
  • CSS — Content-Scrambling System
  • CSS — Closed Source Software
  • CSS — Cross-Site Scripting
  • CSV — Comma-Separated Values
  • CT — Computerized Tomography
  • CTAN — Comprehensive TeX Archive Network
  • CTCP — Client-To-Client Protocol
  • CTI — Computer Telephony Integration
  • CTL — Computational Tree Logic
  • CTM — Close To Metal
  • CTS — Clear To Send
  • CTSS — Compatible Time-Sharing System
  • CUA — Common User Access
  • CVS — Concurrent Versioning System

[edit] D

  • DAC — Digital-To-Analog Converter
  • DAC — Discretionary Access Control
  • DAO — Data Access Objects
  • DAO — Disk-At-Once
  • DAP — Directory Access Protocol
  • DARPA — Defense Advanced Research Projects Agency
  • DAT — Digital Audio Tape
  • DB — Database
  • DBA — Database Administrator
  • DBCS — Double Byte Character Set
  • DBMS — Database Management System
  • DCC — Direct Client-to-Client
  • DCCA — Debian Common Core Alliance
  • DCL — Data Control Language
  • DCMI — Dublin Core Metadata Initiative
  • DCOM — Distributed Component Object Model
  • DD — Double Density
  • DDE — Dynamic Data Exchange
  • DDL — Data Definition Language
  • DDoS — Distributed Denial of Service
  • DDR — Double Data Rate
  • DEC — Digital Equipment Corporation
  • DES — Data Encryption Standard
  • dev — development
  • DFA — Deterministic Finite Automaton
  • DFD — Data Flow Diagram
  • DFS — Depth-First Search
  • DFS — Distributed File System
  • DHCP — Dynamic Host Configuration Protocol
  • DHTML — Dynamic HTML
  • DIF — Data Integrity Field
  • DIMM — Dual Inline Memory Module
  • DIN — Deutsches Institut für Normung
  • DIP — Dual In-line Package
  • DIVX — Digital Video Express
  • DIY - Do It Yourself devices
  • DKIM — Domain Keys Identified Mail
  • DL — Download
  • DLL — Dynamic Link Library
  • DLP — Digital Light Processing
  • DMA — Direct Memory Access
  • DMCA — Digital Millennium Copyright Act
  • DML — Data Manipulation Language
  • DMR — Dennis M. Ritchie
  • DN — Distinguished Name
  • DND — Drag-and-Drop
  • DNS — Domain Name System
  • DOCSIS — Data Over Cable Service Interface Specification
  • DOM — Document Object Model
  • DoS — Denial of Service
  • DOS — Disk Operating System
  • DP — Dot Pitch
  • DPI — Deep Packet Inspection
  • DPI — Dots Per Inch
  • DPMI — DOS Protected Mode Interface
  • DPMS — Display Power Management Signaling
  • DRAM — Dynamic Random Access Memory
  • DRI — Direct Rendering Infrastructure
  • DRM — Digital Rights Management
  • DRM — Direct Rendering Manager
  • DSDL — Document Schema Definition Languages
  • DSDM — Dynamic Systems Development Method
  • DSL — Digital Subscriber Line
  • DSL — Domain-Specific Language
  • DSLAM — Digital subscriber line access multiplexer
  • DSN — Database Source Name (ODBC)
  • DSN — Data set Name
  • DSP — Digital Signal Processor
  • DSSSL — Document Style Semantics and Specification Language
  • DTD — Document Type Definition
  • DTE — Data Terminal Equipment
  • DTP — Desktop Publishing
  • DTR — Data Terminal Ready
  • DVD — Digital Versatile Disc
  • DVD — Digital Video Disc
  • DVD-R — DVD-Recordable
  • DVD-ROM — DVD-Read Only Memory
  • DVD-RW — DVD-Rewritable
  • DVI — Digital Visual Interface
  • DVR — Digital Video Recorder (see also PVR)

[edit] E

  • EAI — Enterprise Application Integration
  • EAP — Extensible Authentication Protocol
  • EBCDIC — Extended Binary Coded Decimal Interchange Code
  • EBML — Extensible Binary Meta Language
  • ECC — Elliptic Curve Cryptography
  • ECMA — European Computer Manufacturers Association
  • EDA — Electronic Design Automation
  • EDI — Electronic Data Interchange
  • EDO — Extended Data Out
  • EDSAC — Electronic Delay Storage Automatic Calculator
  • EDVAC — Electronic Discrete Variable Automatic Computer
  • EEPROM — Electronically-Erasable Programmable Read-Only Memory
  • EFF — Electronic Frontier Foundation
  • EFI — Extensible Firmware Interface
  • EFM — Eight-to-Fourteen Modulation
  • EGA — Enhanced Graphics Array
  • EGP — Exterior Gateway Protocol
  • eID — electronic ID card
  • EIDE — Enhanced IDE
  • EIGRP — Enhanced Interior Gateway Routing Protocol
  • EISA — Extended Industry Standard Architecture
  • ELF — Extremely Low Frequency
  • ELF — Executable and Linkable Format
  • ELM — Electronic Mail
  • EMACS — Editor Macros
  • EMS — Expanded Memory Specification
  • ENIAC — Electronic Numerical Integrator And Computer
  • EOF — End of File
  • EOL — End of Life
  • EOL — End of Line
  • EOM — End of Message
  • EPROM — Erasable Programmable Read-Only Memory
  • ERP — Enterprise Resource Planning
  • ESCON — Enterprise Systems Connection
  • ESD — Electrostatic Discharge
  • ETL — Extract, Transform, Load
  • ESR — Eric Steven Raymond
  • EUC — Extended Unix Code
  • EULA — End User License Agreement
  • EXE — EXEcutable

[edit] F

  • FAP — FORTRAN Assembly Program
  • FAT — File Allocation Table
  • FAQ — Frequently Asked Questions
  • FBDIMM — Fully Buffered Dual Inline Memory Module
  • FC-AL — Fiber Channel Arbitrated Loop
  • FCB — File Control Block
  • FCS — Frame Check Sequence
  • FDC — Floppy Disk Controller
  • FDS — Fedora Directory Server
  • FDD — Floppy Disk Drive
  • FDDI — Fiber Distributed Data Interface
  • FDMA — Frequency-Division Multiple Access
  • FEC — Forward Error Correction
  • FEMB — Front-End Motherboard
  • FET — Field Effect Transistor
  • FICON — Fiber Connectivity
  • FIFO — First In First Out
  • FHS — Filesystem Hierarchy Standard
  • FLAC — Free Lossless Audio Codec
  • FLOPS — FLoating-Point Operations Per Second
  • FLOSS — Free/Libre/Open Source Software
  • FOLDOC — Free On-line Dictionary of Computing
  • FOSDEM — Free and Open source Software Developers' European Meeting
  • FOSI — Formatted Output Specification Instance
  • FOSS — Free and Open Source Software
  • FPGA — Field Programmable Gate Array
  • FPU — Floating Point Unit
  • FRU — Field Replaceable Unit
  • FS — File System
  • FSB — Front Side Bus
  • FSF — Free Software Foundation
  • FSM — Finite State Machine
  • FTTC — Fiber To The Curb
  • FTTH — Fiber To The Home
  • FTTP — Fiber To The Premises
  • FTP — File Transfer Protocol
  • FQDN — Fully Qualified Domain Name
  • FUCT — Failed Under Continuous Test
  • FUD — Fear Uncertainty Doubt
  • FWS — Folding White Space
  • FXP — File eXchange Protocol

[edit] G

  • G11N — Globalization
  • Gb — Gigabit
  • GB — Gigabyte
  • GCC — GNU Compiler Collection (formerly GNU C Compiler)
  • GCJ — GNU Compiler for Java
  • GCR — Group Code Recording
  • GDB — GNU Debugger
  • GDI — Graphics Device Interface
  • GFDL — GNU Free Documentation License
  • GIF — Graphics Interchange Format
  • GIGO — Garbage In, Garbage Out
  • GIMP — GNU Image Manipulation Program
  • GIMPS — Great Internet Mersenne Prime Search
  • GIS — Geographic Information System
  • GLUT — OpenGL Utility Toolkit
  • GML — Geography Markup Language
  • GNOME — GNU Network Object Model Environment
  • GNU — GNU's Not Unix
  • GOMS — Goals, Operators, Methods, and Selection rules
  • GPG — GNU Privacy Guard
  • GPGPU — General-Purpose Computing on Graphics Processing Units
  • GPIB — General-Purpose Instrumentation Bus
  • GPL — General Public License
  • GPL — General-Purpose Language
  • GPRS — General Packet Radio Service
  • GPT — GUID Partition Table
  • GPU — Graphics Processing Unit
  • GRUB — Grand Unified Boot-Loader
  • GSM — Global System for Mobile Communications
  • GTK+ — GIMP Toolkit
  • GUI — Graphical User Interface
  • GUID — Globally Unique IDentifier
  • GWT — Google Web Toolkit

[edit] H

  • HAL — Hardware Abstraction Layer
  • HBA — Host Bus Adapter
  • HCI — Human Computer Interaction
  • HD — High Density
  • HDD — Hard Disk Drive
  • HD DVD — High Definition DVD
  • HDL — Hardware Description Language
  • HF — High Frequency
  • HHD — Hybrid Hard Drive
  • HID — Human Interface Device
  • HIG — Human Interface Guidelines
  • HIRD — Hurd of Interfaces Representing Depth
  • HMA — High Memory Area
  • HP — Hewlett-Packard
  • HPC — High-Performance Computing
  • HPFS — High Performance File System
  • HSM — Hierarchical Storage Management
  • HT — Hyper Threading
  • HTM — Hierarchical Temporal Memory
  • HTML — Hypertext Markup Language
  • HTTP — Hypertext Transfer Protocol
  • HTTPd — Hypertext Transport Protocol Daemon
  • HTX — HyperTransport eXpansion
  • HURD — Hird of Unix-Replacing Daemons
  • HVD — Holographic Versatile Disc
  • Hz — Hertz

[edit] I

  • I2C — Inter-Integrated Circuit
  • I18N — Internationalization
  • IANA — Internet Assigned Numbers Authority
  • iBCS — Intel Binary Compatibility Standard
  • IBM — International Business Machines
  • IC — Integrated Circuit
  • ICANN — Internet Corporation for Assigned Names and Numbers
  • ICE — In-Circuit Emulator
  • ICE — Intrusion Countermeasure Electronics
  • ICMP — Internet Control Message Protocol
  • ICP — Internet Cache Protocol
  • ICT — Information and Communication Technology
  • IDE — Integrated Development Environment
  • IDE — Integrated Drive Electronics
  • IDL — Interface Definition Language
  • IDS — Intrusion Detection System
  • IE — Internet Explorer
  • IEC — International Electrotechnical Commission
  • IEEE — Institute of Electrical and Electronics Engineers
  • IETF — Internet Engineering Task Force
  • IFL — Integrated Facility for Linux
  • IGMP — Internet Group Management Protocol
  • IGRP — Interior Gateway Routing Protocol
  • IHV — Independent Hardware Vendor
  • IIOP — Internet Inter-Orb Protocol
  • IIS — Internet Information Services
  • IM — Instant Messaging
  • IMAP — Internet Message Access Protocol
  • IME — Input Method Editor
  • INFOSEC — Information Systems Security
  • I/O — Input/Output
  • IP — Intellectual Property
  • IP — Internet Protocol
  • IPC — Inter-Process Communication
  • IPL — Initial Program Load
  • IPO — Inter Procedural Optimization
  • IPP — Internet Printing Protocol
  • IPS — Intrusion Prevention System
  • IPsec — Internet Protocol security
  • IPTV — Internet Protocol Television
  • IPX — Internetwork Packet Exchange
  • IRC — Internet Relay Chat
  • IrDA — Infrared Data Association
  • IRP — I/O Request Packet
  • IRQ — Interrupt Request
  • IS — Information Systems
  • ISA — Industry Standard Architecture
  • ISA — Instruction Set Architecture
  • ISAM — Indexed Sequential Access Method
  • ISC — Internet Storm Center
  • ISDN — Integrated Services Digital Network
  • ISO — International Organization for Standardization
  • ISP — Internet Service Provider
  • ISPF — Interactive System Productivity Facility
  • ISR — Interrupt Service Routine
  • ISV — Independent Software Vendor
  • IT — Information Technology
  • ITL — Interval Temporal Logic
  • ITU — International Telecommunication Union

[edit] J

  • J2CE — Java 2 Cryptographic Edition
  • J2EE — Java 2 Enterprise Edition
  • J2ME — Java 2 Micro Edition
  • J2SE — Java 2 Standard Edition
  • JAXB — Java Architecture for XML Binding
  • JAX-RPC — Java XML for Remote Procedure Calls
  • JAXP — Java API for XML Processing
  • JBOD — Just a Bunch of Disks
  • JCL — Job Control Language
  • JCP — Java Community Process
  • JDBC — Java Database Connectivity
  • JDK — Java Development Kit
  • JES — Job Entry Subsystem
  • JDS — Java Desktop System
  • JFC — Java Foundation Classes
  • JFET — Junction Field-Effect Transistor
  • JFS — IBM Journaling File System
  • JINI — Jini Is Not Initials
  • JIT — Just-In-Time
  • JMX — Java Management Extensions
  • JMS — Java Message Service
  • JNDI — Java Naming and Directory Interface
  • JNI — Java Native Interface
  • JPEG — Joint Photographic Experts Group
  • JRE — Java Runtime Environment
  • JS — JavaScript
  • JSON — JavaScript Object Notation
  • JSP — Jackson Structured Programming
  • JSP — JavaServer Pages
  • JTAG — Joint Test Action Group
  • JUG — Java Users Group
  • JVM — Java Virtual Machine
  • jwz — Jamie Zawinski

[edit] K

  • K&R — Kernighan and Ritchie
  • KB — Keyboard
  • Kb — Kilobit
  • KB — Kilobyte
  • KB — Knowledge Base
  • KDE — K Desktop Environment
  • kHz — Kilohertz
  • KISS — Keep It Simple, Stupid
  • KVM — Keyboard, Video, Mouse

[edit] L

  • L10N — Localization
  • LAMP — Linux Apache MySQL (Perl, PHP, or Python)
  • LAN — Local Area Network
  • LBA — Logical Block Addressing
  • LCD — Liquid Crystal Display
  • LCOS — Liquid Crystal On Silicon
  • LDAP — Lightweight Directory Access Protocol
  • LE — Logical Extents
  • LED — Light-Emitting Diode
  • LF — Line Feed
  • LF — Low Frequency
  • LFS — Linux From Scratch
  • lib — library
  • LIF — Low Insertion Force
  • LIFO — Last In First Out
  • LILO — Linux Loader
  • LKML — Linux Kernel Mailing List
  • LM — Lan Manager
  • LGPL — [GNU] Lesser General Public License
  • LOC — Lines of Code
  • LPI — Linux Professional Institute
  • LSB — Least Significant Bit
  • LSB — Linux Standard Base
  • LSI — Large-Scale Integration
  • LTL — Linear Temporal Logic
  • LTR — Left-to-Right
  • LUG — Linux User Group
  • LUN — Logical Unit Number
  • LV — Logical Volume
  • LVD — Low Voltage Differential
  • LVM — Logical Volume Management
  • LZW — Lempel-Ziv-Welch

[edit] M

  • MAC — Mandatory Access Control
  • MAC — Media Access Control
  • MAN — Metropolitan Area Network
  • MANET — Mobile Ad-Hoc Network
  • MAPI — Messaging Application Programming Interface
  • Mb — Megabit
  • MB — Megabyte
  • MBCS — Multi Byte Character Set
  • MBR — Master Boot Record
  • MCA — Micro Channel Architecture
  • MCSA — Microsoft Certified Systems Administrator
  • MCSD — Microsoft Certified Solution Developer
  • MCSE — Microsoft Certified Systems Engineer
  • MDA — Mail Delivery Agent
  • MDA — Model-Driven Architecture
  • MDA — Monochrome Display Adapter
  • MDI — Multiple Document Interface
  • ME — [Windows] Millennium Edition
  • MF — Medium Frequency
  • MFC — Microsoft Foundation Classes
  • MFM — Modified Frequency Modulation
  • MHz — Megahertz
  • MIB — Management Information Base
  • MICR — Magnetic Ink Character Recognition
  • MIDI — Musical Instrument Digital Interface
  • MIMD — Multiple Instruction, Multiple Data
  • MIMO — Multiple-Input Multiple-Output
  • MIPS — Million Instructions Per Second
  • MIPS — Microprocessor without Interlocked Pipeline Stages
  • MIS — Management Information Systems
  • MISD — Multiple Instruction, Single Data
  • MIT — Massachusetts Institute of Technology
  • MIME — Multipurpose Internet Mail Extensions
  • MMDS — Mortality Medical Data System
  • MMI — Man Machine Interface.
  • MMIO — Memory-Mapped I/O
  • MMORPG — Massively Multiplayer Online Role-Playing Game
  • MMU — Memory Management Unit
  • MMX — Multi-Media Extensions
  • MNG — Multiple-image Network Graphics
  • MoBo — Motherboard
  • MOM — Message-Oriented Middleware
  • MOO — MUD Object Oriented
  • MOSFET — Metal-Oxide Semiconductor FET
  • MOTD — Message Of The Day
  • MPAA — Motion Picture Association of America
  • MPEG — Motion Pictures (Coding) Experts Group
  • MPL — Mozilla Public License
  • MPU — Microprocessor Unit
  • MS — Memory Stick
  • MS — Microsoft
  • MSB — Most Significant Bit
  • MS-DOS — Microsoft DOS
  • MT — Machine Translation
  • MTA — Mail Transfer Agent
  • MTU — Maximum Transmission Unit
  • MSA — Mail Submission Agent
  • MSDN — Microsoft Developer Network
  • MSI — Medium-Scale Integration
  • MSI — Microsoft Installer
  • MUA — Mail User Agent
  • MUD — Multi-User Dungeon
  • MVC — Model-View-Controller
  • MVP — Most Valuable Professional
  • MVS — Multiple Virtual Storage
  • MX — Mail exchange

[edit] N

  • NACK — Negative ACKnowledgement
  • NAK — Negative AcKnowledge Character
  • NAS — Network-Attached Storage
  • NAT — Network Address Translation
  • NCP — NetWare Core Protocol
  • NCQ — Native Command Queuing
  • NCSA — National Center for Supercomputing Applications
  • NDPS — Novell Distributed Print Services
  • NDS — Novell Directory Services
  • NEP — Network Equipment Provider
  • NEXT — Near-End CrossTalk
  • NFA — Nondeterministic Finite Automaton
  • GNSCB — Next-Generation Secure Computing Base
  • NFS — Network File System
  • NI — National Instruments
  • NIC — Network Interface Card
  • NIM — No Internal Message
  • NIO — New I/O
  • NIST — National Institute of Standards and Technology
  • NLP — Natural Language Processing
  • NLS — Native Language Support
  • NP — Non-Deterministic Polynomial-Time
  • NPL — Netscape Public License
  • NPU — Network Processing Unit
  • NS — Netscape
  • NSA — National Security Agency
  • NSPR — Netscape Portable Runtime
  • NMI — Non-Maskable Interrupt
  • NNTP — Network News Transfer Protocol
  • NOC — Network Operations Center
  • NOP — No OPeration
  • NOS — Network Operating System
  • NPTL — Native POSIX Thread Library
  • NSS — Novell Storage Service
  • NSS — Network Security Services
  • NSS — Name Service Switch
  • NT (Windows) — New Technology
  • NTFS — NT Filesystem
  • NTLM — NT Lan Manager
  • NTP — Network Time Protocol
  • NUMA — Non-Uniform Memory Access
  • NURBS — Nonuniform Rational B-Spline
  • NVRAM — Non-Volatile Random Access Memory

[edit] O

  • OASIS — Organization for the Advancement of Structured Information Standards
  • OAT — Operational Acceptance Testing
  • OBSAI — Open Base Station Architecture Initiative
  • ODBC — Open Database Connectivity
  • OEM — Original Equipment Manufacturer
  • OES — Open Enterprise Server
  • OFTC — Open and Free Technology Community
  • OLAP — Online Analytical Processing
  • OLE — Object Linking and Embedding
  • OLED — Organic Light Emitting Diode
  • OLPC — One Laptop per Child
  • OLTP — Online Transaction Processing
  • OMG — Object Management Group
  • OO — Object-Oriented
  • OO — Open Office
  • OOM — Out of memory
  • OOo — OpenOffice.org
  • OOP — Object-Oriented Programming
  • OPML — Outline Processor Markup Language
  • ORB — Object Request Broker
  • ORM — Oject-Relational Mapping
  • OS — Open Source
  • OS — Operating System
  • OSCON — O'Reilly Open Source Convention
  • OSDN — Open Source Developer Network
  • OSI — Open Source Initiative
  • OSI — Open Systems Interconnection
  • OSPF — Open Shortest Path First
  • OSS — Open Sound System
  • OSS — Open-Source Software
  • OSS — Operational Support Systems
  • OSTG — Open Source Technology Group (formerly OSDN)
  • OUI — Organizationally Unique Identifier

[edit] P

  • P2P — Peer-To-Peer
  • PAN — Personal Area Network
  • PAP — Password Authentication Protocol
  • PARC — Palo Alto Research Center
  • PATA — Parallel ATA
  • PC — Personal Computer
  • PCB — Printed Circuit Board
  • PCB — Process Control Block
  • PCI — Peripheral Component Interconnect
  • PCIe — PCI Express
  • PCL — Printer Command Language
  • PCMCIA — Personal Computer Memory Card International Association
  • PCM — Pulse-Code Modulation
  • PC/NB — Personal Computer or Notebook
  • PCRE — Perl Compatible Regular Expressions
  • PD — Public Domain
  • PDA — Personal Digital Assistant
  • PDF — Portable Document Format
  • PDP — Programmed Data Processor
  • PE — Physical Extents
  • PEBKAC — Problem Exists Between Keyboard And Chair
  • PERL — Practical Extraction and Reporting Language
  • PGA — Pin Grid Array
  • PGO — Profile Guided Optimization
  • PGP — Pretty Good Privacy
  • PHP — PHP: Hypertext Preprocessor
  • PIC — Peripheral Interface Controller
  • PIC — Programmable Interrupt Controller
  • PID — Proportional-Integral-Derivative
  • PID — Process ID
  • PIM — Personal Information Manager
  • PINE — Program for Internet News & Email
  • PIO — Programmed Input/Output
  • PKCS — Public Key Cryptography Standards
  • PKI — Public Key Infrastructure
  • PLC — Power Line Communication
  • PLC — Programmable Logic Controller
  • PLD — Programmable Logic Device
  • PL/I — Programming Language One
  • PL/M — Programming Language for Microcomputers
  • PL/P — Programming Language for Prime
  • PLT — Power Line Telecoms
  • PMM — Personal Memory Manager
  • PMM — POST Memory Manager
  • PNG — Portable Network Graphics
  • PnP — Plug-and-Play
  • PoE — Power over Ethernet
  • POP — Point of Presence
  • POP3 — Post Office Protocol v3
  • POSIX — Portable Operating System Interface
  • POST — Power-On Self Test
  • PPC — PowerPC
  • PPI — Pixels Per Inch
  • PPP — Point-to-Point Protocol
  • PPPoA — PPP over ATM
  • PPPoE — PPP over Ethernet
  • PPTP — Point-to-Point Tunneling Protocol
  • PS — PostScript
  • PS/2 — Personal System/2
  • PSU — Power Supply Unit
  • PSVI — Post-Schema-Validation Infoset
  • PV — Physical Volume
  • PVG — Physical Volume Group
  • PVR — Personal Video Recorder
  • PXE — Preboot Execution Environment
  • PXI — PCI Extensions for Instrumentation

[edit] Q

  • QDR — Quad Data Rate
  • QA — Quality Assurance
  • QFP — Quoted For Permanence
  • QoS — Quality of Service
  • QOTD — Quote of the Day
  • Qt — Quasar Toolkit
  • QTAM — Queued Telecomunications Access Method (an IBM OS/360 API)

[edit] R

  • RACF — Resource Access Control Facility
  • RAD — Rapid Application Development
  • RADIUS — Remote Authentication Dial In User Service
  • RAID — Redundant Array of Independent Disks
  • RAID — Redundant Array of Inexpensive Disks
  • RAIT — Redundant Array of Inexpensive Tapes
  • RAM — Random Access Memory
  • RARP — Reverse Address Resolution Protocol
  • RC — Region Code
  • RC — Release Candidate
  • RC — Run Commands
  • RCS — Revision Control System
  • RDBMS — Relational Database Management System
  • RDF — Resource Description Framework
  • RDM — Relations Database Management
  • RDS — Relations Database System
  • REFAL — REcursive Functions Algorithmic Language
  • REST — Representational State Transfer
  • regex — Regular Expression
  • regexp — Regular Expression
  • RF — Radio Frequency
  • RFC — Request For Comments
  • RFI — Radio Frequency Interference
  • RFID — Radio Frequency Identification
  • RGB — Red, Green, Blue
  • RGBA — Red, Green, Blue, Alpha
  • RHL — Red Hat Linux
  • RHEL — Red Hat Enterprise Linux
  • RIA — Rich Internet Application
  • RIAA — Recording Industry Association of America
  • RIP — Raster Image Processor
  • RIP — Routing Information Protocol
  • RISC — Reduced Instruction Set Computer
  • RLE — Run-Length Encoding
  • RLL — Run Length Limited
  • RMI — Remote Method Invocation
  • RMS — Richard Matthew Stallman
  • ROM — Read Only Memory
  • ROMB — Read-Out Motherboard
  • RPC — Remote Procedure Call
  • RPG — Report Program Generator
  • RPM — RPM Package Manager
  • RSA — Rivest Shamir Adleman
  • RSI — Repetitive Strain Injury
  • RSS — Rich Site Summary, RDF Site Summary, or Really Simple Syndication
  • RTC — Real-Time Clock
  • RTE — Real-Time Enterprise
  • RTL — Right-to-Left
  • RTOS — Real Time Operating System
  • RTS — Ready To Send

[edit] S

  • SaaS — Software as a Service
  • SAN — Storage Area Network
  • SAR — Search And Replace[1]
  • SATA — Serial ATA
  • SAX — Simple API for XML
  • SBOD — Spinning Beachball of Death
  • SBP-2 — Serial Bus Protocol 2
  • sbin — superuser binary
  • SBU — Standard Build Unit
  • SCADA — Supervisory Control And Data Acquisition
  • SCID — Source Code in Database
  • SCM — Software Configuration Management
  • SCM — Source Code Management
  • SCP — Secure Copy
  • SCPI — Standard Commands for Programmable Instrumentation
  • SCSI — Small Computer System Interface
  • SD — Secure Digital
  • SDDL — Security Descriptor Definition Language
  • SDI — Single Document Interface
  • SDIO — Secure Digital Input Output
  • SDK — Software Development Kit
  • SDL — Simple DirectMedia Layer
  • SDN — Service Delivery Network
  • SDR — Software-Defined Radio
  • SDRAM — Synchronous Dynamic Random Access Memory
  • SDSL — Symmetric DSL
  • SE — Single Ended
  • SEAL — Semantics-directed Environment Adaptation Language
  • SEI — Software Engineering Institute
  • SFTP — Secure FTP
  • SFTP — Simple File Transfer Protocol
  • SFTP — SSH File Transfer Protocol
  • SGI — Silicon Graphics, Incorporated
  • SGML — Standard Generalized Markup Language
  • SHA — Secure Hash Algorithm
  • SIGCAT — Special Interest Group on CD-ROM Applications and Technology
  • SIGGRAPH — Special Interest Group on Graphics
  • SIMD — Single Instruction, Multiple Data
  • SIMM — Single Inline Memory Module
  • SIP — Session Initiation Protocol
  • SIP — Supplementary Ideographic Plane
  • SISD — Single Instruction, Single Data
  • SLED — SUSE Linux Enterprise Desktop
  • SLES — SUSE Linux Enterprise Server
  • SLI — Scalable Link Interface
  • SLIP — Serial Line Internet Protocol
  • SLM — Service Level Management
  • SLOC — Source Lines of Code
  • SPMD — Single Program, Multiple Data
  • SMA — SubMiniature version A
  • SMB — Server Message Block
  • SMBIOS — System Management BIOS
  • SMC — SMC Networks (company)
  • SMIL — Synchronized Multimedia Integration Language
  • S/MIME — Secure/Multipurpose Internet Mail Extensions
  • SMP — Supplementary Multilingual Plane
  • SMP — Symmetric Multi-Processing
  • SMS — Short Message Service
  • SMS — System Management Server
  • SMT — Simultaneous Multithreading
  • SMTP — Simple Mail Transfer Protocol
  • SNA — Systems Network Architecture
  • SNMP — Simple Network Management Protocol
  • SOA — Service-Oriented Architecture
  • SOE — Standard Operating Environment
  • SOAP — Simple Object Access Protocol
  • SoC — System-on-a-Chip
  • SO-DIMM — Small Outline DIMM
  • SOHO — Small Office/Home Office
  • SOI — Silicon On Insulator
  • SP — Service Pack
  • SPA — Single Page Application
  • SPF — Sender Policy Framework
  • SPI — Serial Peripheral Interface
  • SPI — Stateful Packet Inspection
  • SPARC — Scalable Processor Architecture
  • SQL — Structured Query Language
  • SRAM — Static Random Access Memory
  • SSD — Software Specification Document
  • SSD - Solid-State Drive
  • SSE — Streaming SIMD Extensions
  • SSH — Secure Shell
  • SSI — Server Side Includes
  • SSI — Single-System Image
  • SSI — Small-Scale Integration
  • SSID — Service Set Identifier
  • SSL — Secure Socket Layer
  • SSP — Supplementary Special-purpose Plane
  • SSSE — Supplementary Streaming SIMD Extensions
  • su — superuser
  • SUS — Single UNIX Specification
  • SVC — Scalable Video Coding
  • SVG — Scalable Vector Graphics
  • SVGA — Super Video Graphics Array
  • SVD — Structured VLSI Design
  • SWF — Shock Wave Flash
  • SWT — Standard Widget Toolkit
  • Sysop — System operator

[edit] T

  • TAO — Track-At-Once
  • TB — Terabyte
  • Tcl — Tool Command Language
  • TCP — Transmission Control Protocol
  • TCP/IP — Transmission Control Protocol/Internet Protocol
  • TCU — Telecommunication Control Unit
  • TDMA — Time Division Multiple Access
  • temp — temporary (variable, file, directory, etc.)
  • TFT — Thin Film Transistor
  • TI — Texas Instruments
  • TLA — Three-Letter Acronym
  • TLD — Top-Level Domain
  • TLS — Thread-Local Storage
  • TLS — Transport Layer Security
  • tmp — temporary (variable, file, directory, etc.)
  • TNC — Terminal Node Controller
  • TNC — Threaded Neill-Concelman connector
  • TSO — Time Sharing Option
  • TSP — Traveling Salesman Problem
  • TSR — Terminate and Stay Resident
  • TTA — True Tap Audio
  • TTF — TrueType Font
  • TTL — Transistor-Transistor Logic
  • TTL — Time To Live
  • TTS — Text-to-Speech
  • TTY — Teletype
  • TUCOWS — The Ultimate Collection of Winsock Software
  • TUG — TeX Users Group
  • TWAIN - Technology Without An Interesting Name

[edit] U

  • UAAG — User Agent Accessibility Guidelines
  • UAC — User Account Control
  • UART — Universal Asynchronous Receiver/Transmitter
  • UAT — User Acceptance Testing
  • UCS — Universal Character Set
  • UDDI — Universal Description, Discovery, and Integration
  • UDMA — Ultra DMA
  • UDP — User Datagram Protocol
  • UE — User Experience
  • UEFI — Unified Extensible Firmware Interface
  • UHF — Ultra High Frequency
  • UI — User Interface
  • UL — Upload
  • ULA — Uncommitted Logic Array
  • UMA — Upper Memory Area
  • UMB — Upper Memory Block
  • UML — Unified Modeling Language
  • UML — User-Mode Linux
  • UMPC — Ultra-Mobile Personal Computer
  • UNC — Universal Naming Convention
  • UPS — Uninterruptible Power Supply
  • URI — Uniform Resource Identifier
  • URL — Uniform Resource Locator
  • URN — Uniform Resource Name
  • USB — Universal Serial Bus
  • usr — user
  • USR — U.S. Robotics
  • UTC — Coordinated Universal Time
  • UTF — Unicode Transformation Format
  • UUCP — Unix to Unix Copy
  • UUID — Universally Unique Identifier
  • UVC — Universal Virtual Computer

[edit] V

  • var — variable
  • VAX — Virtual Address eXtension
  • VCPI — Virtual Control Program Interface
  • VR — Virtual Reality
  • VRML — Virtual Reality Modeling Language
  • VB — Visual Basic
  • VBA — Visual Basic for Applications
  • VBS — Visual Basic Script
  • VESA — Video Electronics Standards Association
  • VFAT — Virtual FAT
  • VFS — Virtual File System
  • VG — Volume Group
  • VGA — Video Graphics Array
  • VGCT - Video Graphics Character Table
  • VHF — Very High Frequency
  • VLAN — Virtual Local Area Network
  • VLSM — Variable Length Subnet Mask
  • VLB — Vesa Local Bus
  • VLF — Very Low Frequency
  • VLIW - Very Long Instruction Word— uinvac
  • VLSI — Very-Large-Scale Integration
  • VM — Virtual Machine
  • VM — Virtual Memory
  • VOD — Video On Demand
  • VoIP — Voice over IP
  • VPN — Virtual Private Network
  • VPU — Visual Processing Unit
  • VSAM — Virtual Storage Access Method
  • VSAT — Very Small Aperture Terminal
  • VT — Video Terminal?
  • VTAM — Virtual Telecommunications Access Method

[edit] W

  • W3C — World Wide Web Consortium
  • WAFS — Wide Area File Services
  • WAI — Web Accessibility Initiative
  • WAIS — Wide Area Information Server
  • WAN — Wide Area Network
  • WAP — Wireless Access Point
  • WAP — Wireless Application Protocol
  • WAV — WAVEform audio format
  • WBEM — Web-Based Enterprise Management
  • WCAG — Web Content Accessibility Guidelines
  • WCF — Windows Communication Foundation
  • WDM — Wavelength Division Multiplexing
  • WebDAV — WWW Distributed Authoring and Versioning
  • WEP — Wired Equivalent Privacy
  • Wi-Fi — Wireless Fidelity
  • WiMAX — Worldwide Interoperability for Microwave Access
  • WinFS — Windows Future Storage
  • WINS- Windows Internet Naming Service
  • WLAN — Wireless Local Area Network
  • WMA — Windows Media Audio
  • WMV — Windows Media Video
  • WOL — Wake-on-LAN
  • WOM — Wake-on-Modem
  • WOR — Wake-on-Ring
  • WPA — Wi-Fi Protected Access
  • WPAN — Wireless Personal Area Network
  • WPF — Windows Presentation Foundation
  • WSDL — Web Services Description Language
  • WSFL — Web Services Flow Language
  • WUSB — Wireless Universal Serial Bus
  • WWAN — Wireless Wide Area Network
  • WWID — World Wide Identifier
  • WWN — World Wide Name
  • WWW — World Wide Web
  • WYSIWYG — What You See Is What You Get
  • WZC — Wireless Zero Configuration
  • WFI — Wait For Interrupt

[edit] X

  • XAG — XML Accessibility Guidelines
  • XAML — eXtensible Application Markup Language
  • XDM — X Window Display Manager
  • XDMCP — X Display Manager Control Protocol
  • XCBL — XML Common Business Library
  • XHTML — eXtensible Hypertext Markup Language
  • XILP — XILP Internet Links People
  • XML — eXtensible Markup Language
  • XMMS — X Multimedia System
  • XMPP — eXtensible Messaging and Presence Protocol
  • XMS — Extended Memory Specification
  • XNS — Xerox Network Services
  • XP — Cross-Platform
  • XP — Extreme Programming
  • XPCOM — Cross Platform Component Object Model
  • XPI — Cross Platform Installer
  • XPIDL — Cross-Platform IDL
  • XSD — XML Schema Definition
  • XSL — eXtensible Stylesheet Language
  • XSL-FO — eXtensible Stylesheet Language Formatting Objects
  • XSLT — eXtensible Stylesheet Language Transformations
  • XSS — Cross-Site Scripting
  • XTF — Extensible Tag Framework
  • XUL — XML User Interface Language

[edit] Y

  • Y2K — Year Two Thousand
  • YACC — Yet Another Compiler Compiler
  • YAML — YAML Ain't Markup Language
  • YAST — Yet Another Setup Tool

[edit] Z

  • ZCAV — Zone Constant Angular Velocity
  • ZCS — Zero Code Suppression
  • ZIF — Zero Insertion Force
  • ZIFS — Zero Insertion Force Socket
  • ZISC — Zero Instruction Set Computer
  • ZOPE — Z Object Publishing Environment
  • ZMA — Zone Multicast Address

[edit] See also

[edit] References

"Computing Acronyms and Abbreviations". All Acronyms. http://www.all-acronyms.com/?tg=computing&o=a. Retrieved on 2008-07-12. 

"Free Computer Dictionary". http://www.computerdictionaries.org/?tg=computing&o=a. Retrieved on 2008-11-05. 

[edit] External links

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