Computer Abbreviation is an essential part of most of competitive examinations. One can find these questions in ADRE, APSC, Assam Police, SSC, IBPS, RRB, LIC etc.
There is always a high chance that, you will be able to answer them correctly with very less effort.
Here is the list of most frequently asked Computer Abbreviations .
| Term | Abbreviation |
| AAC | Advanced Audio Coding. |
| ABI | Application Binary Interface. |
| AHA | Accelerated Hub Architecture. |
| ALGOL | Algorithmic Language. |
| AJAX | Asynchronous JavaScript and XML. |
| ABR | Available Bit Rate. |
| AD | Active Directory. |
| ADC | Analog – to – Digital Converter / Apple Display Connector (DVI Variant). |
| ALU | Arithmetic Logical Unit. |
| AMD | Advanced Micro Devices. |
| AMR | Audio Modern Riser. |
| APCI | Application – Layer Protocol Control Information. |
| ASP | Application Service Provider / Active Server Pages. |
| AST | Abstract Syntax Tree. |
| ATA | Advanced Technology Attachment. |
| API | Application Programming Interface. |
| AVC | Advanced Video Coding. |
| AVI | Audio Video Interleaved. |
| AWT | Abstract Window ToolKit. |
| ARPANET | Advanced Research Projects Agency Network. |
| ASCII | American Standard Code for Information Interchange. |
| ATM | Asynchronous Transfer Mode. |
| BAL | Basic Assembly Language. |
| BER | Bit Error Rate. |
| BFD | Binary File Descriptor. |
| BGP | Border Gateway Protocol. |
| BiDi | Bi-Directional. |
| BIN | Binary. |
| BASIC | Beginner All-Purpose Symbolic Instruction Code. |
| BCD | Binary Coded Decimal. |
| BINAC | Binary Automatic Computer. |
| BIOS | Basic Input Output System. |
| BPS | Bits Per Second. |
| BMP | Basic Multilingual Plane. |
| BT | BitTorrent / Bluetooth. |
| BW | Bandwidth. |
| BIT | A Binary Digit. |
| BLOB | Binary Large Object. |
| BLOG | Web Log. |
| CAI | Computer – Aided Instruction. |
| CAQA | Computer – Aided Quality Assurance. |
| CC | C Compiler / Carbon Copy. |
| CAD | Computer – Aided Design. |
| CAE | Computer – Aided Engineering. |
| CD | Compact Disk / Change Directory. |
| CDMA | Code Division Multiple Access. |
| CD-RW | Compact Disk – Rewritable. |
| CG | Computer Graphics. |
| CGA | Color Graphics Array. |
| CD-R | Compact Disk – Recordable. |
| CD-ROM | Compact Disk – Read – Only Memory. |
| CGI | Common Gateway Interface / Computer – Generated Imaginary. |
| CMOS | Complementary Metal – Oxide Semiconductor. |
| CLI | Command Line Interface. |
| CNC | Computer Numerical Control. |
| COBOL | Common Business – Oriented Language. |
| CIFS | Common Internet File System. |
| CIM | Common Information Model. |
| CPU | Central Processing Unit. |
| CRS | Computer Reservation System. |
| CTR | Cathode Ray Tube. |
| CTL | Computation Tree Logic. |
| CTS | Clear to Send. |
| CUA | Common User Access. |
| CSI | Common System Interface. |
| CSV | Comma – Separated Values. |
| CTCP | Client – to – Client Protocol. |
| DAT | Digital Audio Tape. |
| DB | DataBase. |
| DCC | Direct Client – to – Client. |
| DDR | Double Data Rate. |
| DES | Data Encryption Standard. |
| DFD | Data Flow Diagram. |
| DAO | Data Access Objects. |
| DAP | Direct Access Protocol. |
| DFS | Distributed File System. |
| DBA | Database Administrator. |
| DBMS | Database Management System. |
| DHTML | Dynamic Hyper Text Markup Language. |
| DIVX | Digital Video Express. |
| DVE | Digital Video Effects. |
| DNS | Domain Name System. |
| DOS | Disk Operating System. |
| DPI | Dots per INCH. |
| DOS-PMI | Disk Operating System – Protected Mode Interface. |
| DLL | Dynamic Link Library. |
| DLP | Digital Light Processing. |
| DMA | Direct Memory Access. |
| DSL | Digital Subscriber Line / Domain – Specific Language. |
| DVD-RW | Digital Versatile Disk – Rewritable. |
| DVI | Digital Visual Interface. |
| DVR | Digital Video Recorder. |
| DVD-R | Digital Versatile Disk – Recordable. |
| DBSN | Database Source Name (ODBC). |
| DTE | Data Terminal Equipment. |
| DTR | Data Terminal Ready. |
| DVD | Digital Versatile Disk / Digital Video Disk. |
| DVD-ROM | Digital Versatile Disk – Read Only Memory. |
| ECU | Extended Unix Code. |
| EST | Electrostatic Discharge. |
| EXE | Executable. |
| EBCDIC | Extended Binary Coded Decimal Interchange Code. |
| EEPROM | Electronically Erasable Programmable Read Only memory. |
| ENIAC | Electronic Numerical Integrator and Computer. |
| EOF | End of File. |
| EOL | End of Line. |
| EOM | End of Message. |
| EPROM | Erasable Programmable Read Only Memory. |
| EID | Electronic ID Card. |
| EIGRP | Enhanced Interior Gateway Routing Protocol. |
| ELF | Executable and Linkable Format. |
| ELM | Electronic Mail. |
| FS | File System. |
| FSB | Front Side Bus. |
| FTP | File Transfer Protocol. |
| FXP | File Exchange Protocol. |
| FAT | File Allocation Table. |
| FAQ | Frequently Asked Questions. |
| FDC | Floppy Disk Controller. |
| FHS | Filesystem Hierarchy Standard. |
| FCS | Frame Check Sequence. |
| FPU | Floating Point Unit. |
| FDD | Floppy Disk Drive. |
| FDMA | Frequency-Division Multiple Access. |
| FIFO | First In First Out. |
| Gb | Gigabit. |
| GPRS | General Packet Radio Service. |
| GPU | Graphics Processing Unit. |
| GUI | Graphical User Interface. |
| GB | Gigabyte. |
| GIGO | Garbage In Garbage Out. |
| GPL | General Public License. |
| GCR | Group Code Recording. |
| GDI | Graphics Device Interface. |
| GIF | Graphics Interchange Format. |
| HTM | Hierarchical Temporal Memory. |
| HTML | Hypertext Markup Language. |
| HTTP | Hypertext Transfer Protocol. |
| HTTPD | Hypertext Transfer Protocol Daemon. |
| HAL | Hardware Abstraction Layer. |
| HCI | Human-Computer Interaction. |
| HID | Human Interface Device. |
| HIG | Human Interface Guidelines. |
| HP | Hewlett-Packard. |
| HPFS | High-Performance File System. |
| HT | Hyper-Threading. |
| HD | High Density. |
| HDD | Hard Disk Drive. |
| HD DVD | High Definition DVD. |
| HDL | Hardware Description Language. |
| HHD | Hybrid Hard Drive. |
| HTX | Hyper Transport Expansion. |
| HURD | Hird of Unix-Replacing Daemons. |
| HVD | Holographic Versatile Disk. |
| HZ | Hertz. |
| ICP | Internet Cache Protocol. |
| ICT | Information and Communication Technology. |
| IDL | Interface Definition Language. |
| IDE | Integrated Development Environment / Integrated Drive Electronics. |
| IE | Internet Explorer. |
| IGMP | Internet Group Management Protocol. |
| IMAP | Internet Message Access Protocol. |
| I/O | Input / Output. |
| IP | Internet Protocol. |
| IGRP | Interior Gateway Routing Protocol. |
| IBM | International Business Machines. |
| IC | Integrated Circuit. |
| ICMP | Internet Control Message Protocol. |
| IHV | Independent Hardware Vendor. |
| IIOP | Internet Iner-Orb-Protocol. |
| IIS | Internet Information Server. |
| IM | Instant Messaging. |
| IPC | Inter-Process Communication. |
| IPP | Internet Printing Protocol. |
| 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. |
| ISC | Internet Storm Center. |
| ISO | International Organisation for Standardization. |
| IT | Information Technology. |
| ITU | International Telecommunication Union. |
| ISOC | Internet Society. |
| ISP | Internet Service Provider. |
| ISR | Interrupt Service Routine. |
| ISV | Independent Software Vendor. |
| JPEG | Joint Photographic Experts Group. |
| JRE | Java Runtime Environment. |
| JS | Java Script. |
| JSON | Java Script Object Notation. |
| JSP | Java Server Pages. |
| J2EE | Java 2 Enterprise Edition. |
| J2ME | Java 2 Micro Edition. |
| J2SE | Java 2 Standard Edition. |
| JDK | Java Development KIT. |
| JUG | Java User Group. |
| KHz | Kilohertz. |
| KB | Kilobyte. |
| Kb | Kilobit. |
| KBPS | Kilobit per second. |
| KVM | Keyboard, Video, Mouse. |
| LSB | Least Significant Bit. |
| LAN | Local Area Network. |
| LED | Light-Emitting Diode. |
| LIFO | Last In First Out. |
| MBCS | Multi Byte Character Set. |
| MBR | Master Boot Record. |
| MDI | Multiple Document Interface. |
| MICR | Magnetic Ink Character Recognition. |
| MAN | Metropolitan Area Network. |
| MANET | Mobile Ad-Hoc Network. |
| Mb | Megabit. |
| MB | Megabyte. |
| MIDI | Musical Instrument Digital Interface. |
| MMU | Memory Management Unit. |
| MMX | Multi-Media Extensions. |
| MNG | Multiple-image Network Graphics. |
| MOSFET | Metal-Oxide Semiconductor Field Effect Transistor. |
| MIMO | Multiple-Input Multiple Output. |
| MIPS | Million Instructions Per Second. |
| MIME | Multipurpose Internet Mail Extensions. |
| MHz | Megahertz. |
| MPEG | Motion Pictures (coding) Experts Group. |
| MVS | Multiple Vendor System. |
| MPL | Mozilla Public License. |
| MSB | Most Significant Bit. |
| MS-DOS | Microsoft Disk Operating System. |
| NOP | NO Operation. |
| NOS | Network Operating System. |
| NT (Windows) | New Technology. |
| NTFS | NT File System. |
| NFS | Network File System. |
| NIC | Network Interface Controller. |
| NIO | New I/O. |
| NMI | Non-Maskable Interrupt. |
| NNTP | Network News Transfer Protocol. |
| NTP | Network Time Protocol. |
| NVRAM | Non-Volatile Random Access Memory. |
| OS | Operating System. |
| OSS | Open Source Software. |
| OCR | Optical Character Reader. |
| OOP | Object-Oriented Programming. |
| OPML | Outline Processor Markup Language. |
| PATA | Parallel ATA. |
| PC | Personal Computer. |
| PCB | Printed Circuit Board. |
| PC DOS | Personal Computer Disk Operating System. |
| P2P | Peer-To-Peer. |
| PAN | Personal Area Network. |
| PAP | Password Authentication Protocol. |
| PCI | Peripheral Component Interconnect. |
| PCIe | PCI Express. |
| PCL | Printer Command Language. |
| PERL | Practical Extraction and Reporting Language. |
| PIO | Programmed Input/Output. |
| PLC | Power Line Communication / Programmable Logic Controller. |
| Pnp | Plug-and-Play. |
| PGA | Pin Grid Array. |
| PHP | Hypertext Preprocessor. |
| PIC | Peripheral Interface Controller /
Programmable Interrupt Controller. |
| PINE | Program for Internet News & Email. |
| PoE | Power Over Ethernet. |
| POST | Power-On Self Test. |
| PPC | Power PC. |
| PPI | Pixels Per Inch. |
| PPP | Point-to-Point Protocol. |
| PPPoA | PPP over ATM. |
| PPPoE | PPP over Ethernet. |
| PPTP | Point-to-Point Tunneling Protocol. |
| PSU | Power Supply Unit. |
| QFP | Quick File Access. |
| QDR | Quad Data Rate. |
| QFP | Quad Flat Package. |
| QoS | Quality of Service. |
| RAIT | Redundant Array of Inexpensive Tapes. |
| RAM | Random Access Memory. |
| RARP | Reverse Address Resolution Protocol. |
| RAD | Rapid Application Development. |
| RADIUS | Remote Authentication Dial In User Service. |
| RAID | Redundant Array of Independent Disks. |
| RDBMS | Relation Database Management System. |
| RDF | Resource Description Framework. |
| REEAL | Recursive Functions Algorithmic Language. |
| RF | Radio Frequency. |
| RGB | Red, Green, Blue (RGBA– Red, Green, Blue, Alpha). |
| RTOS | Real Time Operating System. |
| RIP | Routing Information Protocol. |
| ROM | Read Only Memory. |
| ROMB | Read-Out Motherboard. |
| ROM-DOS | Read Only Memory-Disk Operating System. |
| SDL | Simple Direct Media Layer. |
| SDN | Service Delivery Network. |
| SDR | Software-Defined Radio. |
| SAN | Storage Area Network. |
| SATA | Serial ATA. |
| SAX | Simple API of XML. |
| SBP-2 | Serial Bus Protocol 2. |
| SBU | Standard Build Unit. |
| SCSI | Small Computer System Interface. |
| SDRAM | Synchronous Dynamic Random Access Memory. |
| SFTP | Secure FTP/Simple File Transfer Protocol. |
| SHDSL | Single-pair High-speed Digital Subscriber Line. |
| SPI | Serial Peripheral Interface. |
| SQL | Structured Query Language. |
| SUS | Single UNIX Specification. |
| SVD | Structured VLSI Design. |
| SVG | Scalable Vector Graphics. |
| SIMD | Single Instruction, Multiple Data. |
| SIMM | Single InLine Memory Module. |
| SMBIOS | System Management BIOS. |
| SMTP | Simple Mail Transfer Protocol. |
| SP | Service Pack. |
| SVGA | Super Video Graphics Array. |
| TDMA | Time Division Multiple Access. |
| tmp | Temporary. |
| TTA | True Tap Audio. |
| TTF | True Type Font. |
| TB | TeraByte. |
| TCP | Transmission Control Protocol. |
| TCP/IP | Transmission Control Protocol / Internet Protocol. |
| TTL | Transistor-Transistor-Logic. |
| TTS | Text-to Speech. |
| TTY | Teletype. |
| UEFI | Unified Extensible Firmware Interface. |
| UI | User Interface. |
| UL | Upload. |
| UAC | User Account Control. |
| UART | Universal Asynchronous Receiver Transmitter. |
| UPS | Uninterruptible Power Supply. |
| URI | Uniform Resource Identifier. |
| URL | Uniform Resource Locator. |
| 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. |
| VT | Video Terminal. |
| 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. |
| VPU | Visual Processing Unit. |
| WAN | Wide Area Network. |
| WAP | Wireless Access Protocol. |
| Wi-Fi | Wireless Fidelity. |
| WinFS | Windows Future Storage. |
| WSDL | Web Services Description Language. |
| WUSB | Wireless Universal Serial Bus. |
| WWAN | Wireless Wide Area Network. |
| WWID | World Wide Identifier. |
| XAML | Extensible Application Merkup Language. |
| XHTML | Extensible Hypertext Markup Language. |
| XSL | Extensible StyleSheet Language. |
| XSL-FO | Extensible StyleSheet language Formatting Objects. |
| XSLIT | Extensible StyleSheet language Transformations. |
| XUL | XML User Interface Language. |
| XML | Extensible Markup Language. |
| XNS | Xerox Network Services. |
| XMMS | X MultiMedia System. |