- AAC : Advanced Audio Coding (audio compression format defined by the MPEG-2 standad)
- ABI : Application Binary Interface
- ABR : Area Border Router
- ABR : Available Bit Rate
- AD : Active Directory
- ADC : Analog – To – Digital Converter
- ADC : Apple Display Connector (DVI variant)
- AH : Active Hub
- AHA : Accelerated Hub Architecture
- Ajax : Asynchronous Java Script and XML
- AL : Active Link
- ALGOL : Algorithmic Language
- ALU : Algorithmic and Logical Unit
- AM : Active Monitor
- AMD : Advanced Micro Devices
- AMR : Audio Modem Riser
- AoE : ATA over Ethernet
- APCI : Application- Layer Protocol Control Information
- API : Application Programming Interface
- APIPA : Automatic Private IP Addressing
- ASCH : American Standard Code for Information Inter change
- ASG : Abstract Semantic Graph
- ASP : Application Service Provider
- AST : Abstract Syntax Tree
- ATA : Advanced Technology Attachment
- ATM : Asynchronous Transfer Mode
- AVC : Advanced Video Interleaved
- AWT : Abstract Windowing Toolkit
- BASIC : Beginner’s All-Purpose Symbolic Instruction Code
- BCD : Binary Coded Decimal
- BEEP : Blocks Extensible Exchange Protocol
- BER : Bit Error Rate
- BFD : Binary File Descriptor
- BGP : Border Gateway Protocol
- bin : binary
- BINAC : Binary Automatic Computer
- BIOS : Basic Input Output System
- bit : binary digit
- Blob : Binary large object
- Blog : Web Log
- BMP : Basic Multilingual Plane
- BOOTP : Bootstrap Protocol
- BPEL : Business Process Execution Language
- bps : bits per second
- CAD : Computer- Aided Design
- CAE : Computer- Aided Engineering
- CAI : Computer- Aided Instruction
- CAT : Computer- Aided Translation
- CAQ : Computer- Aided Quality Assurance
- cc : C Compiler
- CD : Compact Disc
- CD-R : CD-Recordable
- CD-ROM : CD Read-only Memory
- CD-RW : CD- Rewritable
- CG : Computer Graphics
- CGA : Colour Graphics Array
- CGI : Common Gateway Interface
- CGI : Common -Generated Imagenry
- CIFS : Common Internet Filesystem
- CLI : Command Line Interface
- CLR : Common Language Runtime
- CNC : Computer Numerical Control
- COBOL : Common Business-Oriented Language
- CPU : Central Processing Unit
- CRT : Cathode Ray Tube
- CSI : Common System Interface
- CT : Computerised Tomography
- CTCP : Client-To-Client Protocol
- CTL : Computational Tree Logic
- CTS : Clear To Send
- CUA : Common User Access
- DAC : Digital-To-Analog Converter
- DAP : Directiory Access Protocol
- DB : Databse
- DBA : Database Administrator
- DBMS : Database Management System
- DCC : Direct Client-to-Client
- DDR : Double Data Rate
- DES : Data Encryption Standard
- DFD : Data Flow Diagram
- DFS : Distributed File System
- DHTML : Dynamic HTML
- DIVX : Digital Video Express
- DLL : Dynamic Link Library
- DLP : Digital Light Processing
- DMA : Direct Memory Access
- DOS : Disk Operating System
- DPI : Dots Per Inch
- DPMI : DOS Protected Mode Interface
- DSL : Digital subscriber Line
- DSL : Domian- Specific Language
- DSN : Database Source Name (ODBC)
- DTE : Data Terminal Equipment
- DTR : Data Terminal Ready
- DVD : Digital Versatile Disc
- DVD : Digital Video Disc
- DVD-R : DVD- Rewritable
- DVI : Digital Visual Interface
- DVR : Digital Video Recorder
- EAP : Extensible Authentication Protocol
- EBCDIC : Extended Binary Coded Decimal Interchange Code
- EDO : Extended Data Out
- EEPROM : Electronically-Erasable Programmable Read Only Memory
- EFF : Electronic Frontier Foundation
- EFI : Extensible Firmware Interface
- EGA : Enhanced Graphics Array
- EGP : Exterior Gateway Protocal
- eID : electronic ID card
- EIGRP : Enhanced Interior Gateway Routing Protocol
- ELF : Executable and Linkable Format
- ELM : Electronic Mail
- EOM : End of Message
- EPROM : Erasable Programmable Read-Only Memory
- EUC : Extended Unix Code
- EXE : EXEcutable
- FAP : FORTRAN Assembly Program
- FAT : File Allocation Table
- FAQ : Frequently Asked Questions
- FDC : Floppy Disk Controller
- FDD : Floppy Disk Drive
- FIFO : First In Fist Out
- FHS : Filesystem Hierarchy Standard
- FCS : Frame Check Sequence
- FPU : Floating Point Unit
- FS : File System
- FSB : Front Side Bus
- FTP : File Transfer Protocol
- FXP : File eXchange Protocol
- Gb : Gigabit
- GB : Gigabyte
- GCR : Group Code Recording
- GDI : Graphics Device Interface
- GIF : Graphics Interchange Format
- GIGO : Garbage In, Garbage Out
- GPU : Graphics Processing Unit
- GUI : Graphical User Interface
- HAL : Hardware Abstraction Layer
- HCI : Human Computer Interaction
- HDD : Hard Disk Drive
- HD DVD : High Definition DVD
- HDL : Hardware Description Language
- HHD : Hybrid Hard Drive
- HID : Human Interface Guidelines
- HIG : Human Interface Guidelines
- HPFS : High Performance File System
- HSM : Hierarchical Storage Management
- HTM : Hierarchical Temporal Memory
- HTML : Hypertext Markup Language
- HTTP : Hypertext Transfer Protocol
- HTX : Hyper Transport eXpansion
- HURD : Hird of Unix- Replacing Daemons
- HVD : Holographic Versatile Disc
- IBM : International Business Machines
- ICMP : Internet Control Message Protocol
- ICP : Internet Cache Protocol
- IDL : Interface Definition Language
- IE : Internet Explorer
- 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
- I/O : Input/Output
- IP : Internet Protocol
- IPC : Inter-Process Communication
- IPP : Internet Printing Protocol
- Ipsec : Internet Protocol security
- IPTV : Internet Protocol Television
- IPX : Internetwork Packet Exchange
- IRC : Internet Relay Chat
- IRP : I/ORequest Packet
- IRQ : Interrupt Request
- ISC : Internet Storm Center
- ISO : International Organisation for Standardisation
- ISOC : Internet Society
- ISP : Internet Service Provider
- ISR : Interrupt Service Routine
- ISV : Independent Software Vendor
- IT : Information Technology
- ITU : International Telecommunication Union
- J2CE : Java 2 Cryptograhic Edition
- JDS : Java Desktop System
- JMX : Java Management Extensions
- JMS : Java Message Service
- JNDI : Java Naming and Directory Interface
- JNI : Java Native Interface
- JPEG : Joint Photographic Experts Group
- JS : Java Script
- JSON : Java Script Object Notation
- JSP : Java Server Pages
- JUG : Java Users Group
- Kb : Kilobit
- KB : Kilobyte
- kHz : Kilohertz
- LAN : Local Area Network
- LIFO : Last In first Out
- LSB : Least Significant Bit
- MAN : Metropolitan Area Network
- MANET : Mobile Ad- Hoc Network
- Mb : Megabit
- MB : Megabyte
- MBCS : Multi Byte Character Set
- MBR : Master Boot Record
- MDI : Multiple Document Interface
- MICR : Magnetic Ink Character Recognition
- MIMO : Multiple-Input Multiple-Output
- MIPS : Million Instructions Per Second
- MIME : Multipurpose Internet Mail Extensions
- MMX : Multi-Media Extensions
- MNG : Multiple-Image Network Graphics
- MPEG : Motion Pictures (Coding) Experts Group
- MPL : Mozilla Public License
- MSB : Most Significant Bit
- MS-DOS : Microsoft DOS
- MVS : Multiple Virtual Storage
- NEXT : Near- End Cross Talk
- NFS : Network File System
- NIO : New I/O
- NMI : Non- Maskable Interrupt
- NNTP : Network News Transfer Protocol
- NOP : No Operation
- NOS : Netwrok Operating System
- NTP : Network Time Protocol
- OOP : Object- Oriented Programming
- OPML : Outline Processor Markup Language
- OS : Operating System
- OSS : Open- Source Software
- P2P : Peer-To- Peer
- PAN : Personal Area Network
- PAP : Password Authentication Protocol
- PATA : Parallel ATA
- PC : Personal Computer
- PCI : Peripheral Component Interconnect
- PCLe : PCI Express
- PCL : Printer Command Language
- PGA : Pin Grid Array
- PIC : Peripheral Interface Controller
- PIC : Programmable Interrupt Controller
- PINE : Program for Internet News & Email
- PIO : Programmed Input/ Output
- PnP : Plug-and- Play
- PoE : Power over Ethernet
- PPC : Power PC
- PPI : Pixels Per Inch
- PPP : Point-to-Point Protocol
- PPPoA : PPP over Ethernet
- PPTP : Point- to-Point Tunneling Protocol
- PSU : Power Supply Unit
- QDR : Quad Data Rate
- QFP : Quoted For Permanence
- QoS : Quality of Service
- RADIUS : Remote Authentication Dial In User Service
- RAID : Redundant Array of Independent Disks
- RAM : Random Access Memory
- RARP : Reverse Address Resolution Protocol
- RDBMS : Relational Database Management System
- RDF : Resource Description Framework
- REFAL : REcursive Functions Algorithmic Language
- RIP : Routing Information Protocol
- ROM : Read Only Memory
- ROMB : Read-Out Motherborad
- RTOS : Real Time Operating System
- SaaS : Software as a Service
- SAN : Storage Area Network
- SATA : Serial ATA
- SAX : Simple API for XML
- SBP-2 : Serial Bus Protocol 2
- SBU : Standard Build Unit
- SCSI : Small Computer System Interface
- SDL : Simple Direct Media Layer
- SDN : Service Delivery Network
- SDR : Software-Defined Radio
- SDRAM : Synchronous Dynamic Random Access Memory
- SMBIOS : System Management BIOS
- SMTP : Simple Mail Transfer Protocol
- SP : Service Pack
- SPI : Serial Peripheral Interface
- SQL : Structured Query Language
- SUS : Single UNIX Specification
- SVD : Structured VLSI Design
- TCP : Transmission Control Protocol
- TCP/IP : Transmission Control Protocol/Internet Protocol
- TTA : True Tap-Audio
- TTF : True Type Font
- TTS : Text-to-Speech
- TTY : Teletype
- UAC : User Account Control
- UART : Universal Asynchronous Receiver Transmitter
- UEFI : Unified Extensible Firmware Interface
- UI : User Interface
- UL : Upload
- UPS : Uninterruptible Power Supply
- URI : Uniform Resource Identifier
- URN : Uniform Resource Name
- USB : Universal Serial Bus
- Var : variable
- VB : Visual Basic
- VBA : Visual Basic for Applications
- VBS : Visual Basic script
- VFAT : Virtual FAT
- VFS : Virtual File System
- VGA : Video Graphics Array
- VGCT : Video Graphics Character Table
- VLAN : Virtual Local Area Network
- VM : Virtual Memory
- VOD : Video On Demand
- VoIP : Voice over IP
- VPN : Virtual Private Network
- VT : Video Terminal
- WAFS : Wide Area File Services
- WAIS : Wide Area Information Server
- WAN : Wide Area Network
- WAP : Wireless Application Protocol
- 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
- WPA : Wi-Fi Protected Access
- WSDL : Web Services Description Language
- WUSB : Wireless Wide Area Network
- WWID : World Wide Identifier
- WWW : World Wide Web
- XAML : eXtensible Application Markup Language
- XHTML : eXtensible Hypertext Markup Language
- XML : eXtensible Markup Language
- XMMS : X Multimedia System
- XNS : Xerox Network Services
- XSL : eXtensible Styleheet Language
- XSL-FO : eXtensible Stylesheet Language Formatting Objects
- XSLT : eXtensible Stylesheet Language Transformatons
- XUL : XML User Interface Language
- Y2K : Year Two Thousand
- ZIFS : Zero Insertion Force Socket
- ZISC : Zero Instruction Set Computer
- ZMA : Zone Multicast Address