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Computer Acronyms and Abbreviations: Complete List

Computer Acronyms and Abbreviations Full Forms: This section contains the full forms of the Computer Acronyms and Abbreviations which are commonly or uncommonly used for the computers. Last updated : December 9, 2023

This tutorial provides an easy-to-follow introduction to commuter acronyms and abbreviations that can help you quickly and accurately understand the basic terms related to computer science.

The following are the frequent used and important computer acronyms and abbreviations:

1) 2D: Two Dimensional

2D is an abbreviation of "Two-Dimensional". It is the dimension of any virtual object that has no manifestation of profundity. For example, if a graphic or picture representation of a computer is in 2-D, then it can only be sighted directly on, however, the 3-D version of a graphic or picture representation of a computer could be sighted from any angle.

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2) 2FA: Two-factor Authentication

2FA is an abbreviation of "Two-factor Authentication". It is a system of the method used to enhance the level of security by adding up a further step or section to the user verification process. Fundamentally, it entails the user to go through two successful authentications sooner than access is approved or permitted.

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3) 2G: Second Generation

2G is an abbreviation of the "Second-Generation Cellular Network". In 1991, 2G cellular networks were commercially introduced on the GSM standard in Finland by Radiolinja, which at the present, is a component of Elisa Oyj.

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4) 3D: Three Dimensional

3D is an abbreviation of "Three Dimensional". Three-dimensional is a space also known as 3-space or, infrequently, tri-dimensional space is a geometric representation in which three values which are also known as parameters are necessary to find out the point of a component.

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5) 3G: Third Generation

3G is an abbreviation of the "Third Generation". 3G is the third generation of wireless mobile telecommunications technology. It is the enhanced version of 2.5G and 2.5G GPRS networks, for more rapid data transmission speed. This is established on the foundation of a set of principles used for mobile devices and mobile telecommunications use services and networks that meet the terms with the International Mobile Telecommunications-2000 (IMT-2000) specifications by the International Telecommunication Union.

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6) 3GPP: 3rd Generation Partnership Project

3GPP is an abbreviation of the "3rd Generation Partnership Project". It is a standards association group that builds up protocols for mobile telephony. Its finest recognized effort is the expansion, growth, and maintenance of.

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7) 5G: Fifth Generation

5G is an abbreviation of the "Fifth Generation". It is the fifth-generation wireless technology for digital cellular networks that started broad operation in 2019. As with preceding standards, the enclosed regions are classified into sections called "cells", facilitated through service by individual antennas. Almost every foremost telecommunication service provider in the developed world is installing antennas or be determined to install them soon.

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8) 24/7: Twenty-Four Seven

24/7 or 24-7 service, which generally marked "twenty-four seven" is service that is existing at any time and typically, every day in trade business and industry. Substitute orthography for the numerical section comprises 24×7, which generally marked "twenty-four by seven". The numeral is an abbreviation of "24 hours a day, 7 days a week". Less universally used, 24/7/52 (adding "52 weeks") and 24/7/365 service (adding "365 days") compose it understandable that service is available every day of the year.

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9) AAC: Advanced Audio Coding

AAC is an abbreviation of "Advanced Audio Coding". It is an audio coding standard for lossy digital audio compression. It is created to be the descendant of the MP3 format; AAC usually accomplishes higher sound quality than MP3 at the same bit rate.

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10) AAM: Automatic Acoustic Management

AAM is an abbreviation of "Automatic Acoustic Management". It is a system of practice for diminishing acoustic emanations in AT Attachment (ATA) mass storage devices for computer data storage, such as ATA hard disk drives and ATAPI optical disc drives. AAM is a permissive attribute set for ATA/ATAPI devices; when a device supports AAM, the acoustic management frameworks are modifiable and adaptable through a software or firmware user interface.

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11) ABC: Atanasoff–Berry Computer

ABC is an abbreviation of Atanasoff–Berry Computer "ABC". It was the first automatic electronic digital computer. The device has stayed to some extent difficult to understand, restricted by the technology of the day and implementation. The ABC's main concern is discussed and debated between historians of computer technology, for the reason that it was neither programmable, nor Turing-complete, not similar to the broadly well-known ENIAC machine of 1947 in division procured from it.

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12) AbEnd: Abnormal End

AbEnd is an abbreviation of the "Abnormal End", which is an abnormal ending of software, or a system break down. This custom originates from an error message from the IBM OS/360, IBM ZOS operating systems. Generally provided with capital, although may come into sight as "abend".

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13) ABIOS: Advanced Basic Input / Output System

ABIOS is an abbreviation of the "Advanced Basic Input/Output System". It made available the latest original interfaces particularly suitable for multitasking operating systems such as OS/2. In the term "ABIOS", BIOS is an abbreviation of the Basic Input/Output System, which is a firmware used to carry out hardware initialization in the duration of the booting process (power-on startup) and to make available runtime services for operating systems and programs.

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14) AC: Alternating Current

AC is an abbreviation of "Alternating current". Alternating current (AC) is an electric current that once in a while reverses direction, in comparison to direct current (DC) which flows only in one direction. It is the form in which power of electric current is distributed to various businesses and a lot of residences, and it is the form of electrical energy that consumers and regular clients use in general, when they plug kitchen appliances, televisions, fans, and electric lamps into a wall socket.

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15) ACE: Access Control Entry

ACE is an abbreviation of "Access Control Entry". It is a particular distinct term included inside an ACE that includes information about the user or group and the related permissions. Every entry, which is an access control entry in a distinctive ACE, indicates a subject and an operation.

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16) ACK: Acknowledgment

An acknowledgment (ACK) is a signal that is passed among the communicating processes, computers, or devices to indicate acknowledgment, or delivery of the message, as a component of a communications protocol in the process of data networking, telecommunications, and computer buses. The acknowledgment signal, which is sent to discard a formerly acknowledged or received message or to specify some type of error, is known as negative-acknowledgment (NAK or NACK).

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17) ACL: Access Control List

An ACL is an abbreviation of the "Access Control List", concerning a computer file system, which is a record list of permissions put together with an object. An ACL indicates which users or system processes are approved accesses to objects, at the same time what operations are enabled on specified objects.

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18) ACM: Association for Computing Machinery

ACM is an abbreviation of the "Association for Computing Machinery (ACM)". It is an international academic association or scholarly society for computing. In 1947, it was established. It is the world's largest scientific and educational computing society. The ACM is a non-profit professional membership association, as of 2019, claiming just about 100,000 students and professional members. Its head office is situated in New York City.

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19) ACPI: Advanced Configuration and Power Interface

ACPI is an abbreviation of "Advanced Configuration and Power Interface". The Advanced Configuration and Power Interface (ACPI) makes available an accessible standard that operating systems can use to find out and put together in a particular form computer hardware components, to carry out power management by placing unemployed components to sleep and to carry out status monitoring in a computer.

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20) ACR: Attenuation-to-crosstalk Ratio

ACR is an abbreviation of the "Attenuation-to-crosstalk Ratio". It is a framework that is calculated when examining a communication connection, which corresponds to the general performance of the cable. ACR is a mathematical formula that calculates the ratio of attenuation to near-end crosstalk for every arrangement of cable pairs.

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21) AD: Active Directory

AD is an abbreviation of Active Directory (AD). It is a service of directory built up and expanded by Microsoft for Windows domain networks. It is comprised of the majority of Windows Server operating systems as an order of sequence of courses of actions and services. In the beginning, Active Directory was only having the responsibility of centralized domain management. Initiating with Windows Server 2008, on the other hand, Active Directory turned out to be an umbrella title for an extensive range of directory-based identity-associated services.

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22) ABP: Adblock Plus

Adblock Plus (ABP) is an open-source browser extension for content-filtering and ad blocking may be supplemented to any of the most significant web browsers. It is created and developed by Eyeo GmbH (Wladimir Palant), a German software development company.

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23) ADC: Analog-to-Digital Converter

ADC is an abbreviation of "Analog-to-Digital Converter". An analog-to-digital converter (ADC, A/D, or A-to-D) is a system that converts a signal of analog, such as a sound pulled out up by a microphone or light inwardly bounded towards a digital camera, into a digital signal in the field of electronics. An ADC may also make available an inaccessible measurement such as an electronic device that converts an input analog voltage or current to a digital number symbolizing the magnitude of the voltage or current. Normally the digital output is a two's complement binary number that is proportional to the input; however, there are further prospects or chances.

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24) ADO: ActiveX Data Objects

ADO is an abbreviation of "ActiveX Data Objects". Microsoft's ActiveX Data Objects (ADO) consists of an order of sequence of Component Object Model (COM) objects for accessing sources of data in computing. A division of MDAC (Microsoft Data Access Components), it makes available a middleware layer among programming languages and OLE DB, which is a way of accessing data stores, whether databases or not, in a standardized approach.

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25) ADPCM: Adaptive Differential Pulse-Code Modulation

ADPCM is an abbreviation of "Adaptive differential pulse-code modulation". It is an alternative modification of differential pulse-code modulation (DPCM) that varies the magnitude of the step of quantization, to enable additional diminution of the essential data bandwidth for a specified signal-to-noise ratio.

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26) ADSI: Analog Display Services Interface

ADSI is an abbreviation of the "Analog Display Services Interface". It is a technology of telephony that is used in the telephone services of plain old telephone service (POTS) or computer-based private branch exchange (PBX) telephone service. It operates in union with a screen-based telephone ("screen phone") or additional compatible customer-premises equipment (CPE) to make available the user with soft key access to Telephone Company or internal PBX custom calling features. It is an analog service for the reason that it uses analog frequency-shift keying (FSK) technology to work together with an LCD screen through small, low-band rate, downloads to restore and re-program soft keys in real-time.

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27) ADSL: Asymmetric Digital Subscriber Line

ADSL is an abbreviation of "Asymmetric Digital Subscriber Line". It is a one of the category of digital subscriber line (DSL) technology, a data communications technology that allows more rapidly data transmission over copper telephone lines in comparison to a conventional voice band modem can make available. ADSL varies from the less widespread symmetric digital subscriber line (SDSL).

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28) AE: Adobe After Effects

AE is an abbreviation of "Adobe After Effects". It is a digital visual effect, motion graphics, and compositing video editing application software built up and expanded by Adobe Systems and used in the post-production course of action of film making, video games and television production. Amid other things, After Effects can be used for keying, tracking, compositing, and animation. It also plays a role as a very fundamental non-linear editor, audio editor, and media transcoder.

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29) AES: Advanced Encryption Standard

AES is an abbreviation of Advanced Encryption Standard, also known by its original name Rijndael. It is an arrangement of standard for the encryption of electronic data set up by the U.S. National Institute of Standards and Technology (NIST) in 2001.

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30) ADB: Apple Desktop Bus

ADB is an abbreviation of "Apple Desktop Bus". It is a low-speed proprietary bit-serial peripheral bus connecting devices to computers. In 1986, it was launched on the Apple IIGS in a manner to hold up and maintain inexpensive devices like keyboards and mice, enabling them to be associated mutually in a daisy chain devoid of the requirement for hubs or other devices. Apple Device Bus was rapidly launched on afterward Macintosh models, in a while models of NeXT computers, and noticed a number of additional third-party use at the same time as well.

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31) AF: Autofocus

AF is an abbreviation of "Autofocus". It is an optical system, which makes use of a sensor, a control system and a motor to put a focus on an automatically or manually chosen spot or region. An electronic rangefinder has a display as an alternative of the motor; the process of adjustment of the optical system has to be carried out manually until indication.

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32) AGP: Accelerated Graphics Port

AGP is an abbreviation of the "Accelerated Graphics Port". It was created and developed as a high-speed point-to-point channel for putting together a video card to a system of the computer, first and foremost to help out and support the acceleration of 3D computer graphics. It was at the beginning created and developed as a descendant to PCI-type connections for video cards. As of 2004, AGP has been gradually carried out in regular stages in support of PCI Express; by mid-2008, PCI Express cards have taken over the market and simply a small number of AGP models were obtainable and accessible, with GPU manufacturers and add-in board partners in due course reducing support for the interface in support of PCI Express.

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33) AHCI: Advanced Host Controller Interface

AHCI is an abbreviation of the "Advanced Host Controller Interface". It is a procedural and technological standard described by Intel that details the operation of Serial ATA (SATA) host controllers in a non-execution detailed approach in its motherboard chipsets.

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34) AI: Artificial Intelligence

AI is an abbreviation of "artificial intelligence", which occasionally called machine intelligence in the field of computer science. It is intelligence made understandable by machines, in comparison to the normal intelligence made understandable by humans and animals.

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35) AIM: AOL Instant Messenger

AIM is an abbreviation of "AOL Instant Messenger". It was an instant messaging, and online chat type technology and presence computer program designed and developed by AOL, which used the proprietary OSCAR instant messaging protocol and the TOC protocol to enable record listed users to make communication in real-time.

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36) AIML: Artificial Intelligence Markup Language

AIML is an abbreviation of "Artificial Intelligence Markup Language". It is an XML dialect for making and producing natural language software agents. XML is an abbreviation of Extensible Markup Language. It is a markup language that classifies an order of sequence of instructions and regulations for encoding documents in an arrangement that is both human-readable and machine-readable.

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37) AIO: All-in-one

AIO is an abbreviation of "all-in-one", which is also known as an MFP (multi-function product/printer/peripheral), multi-functional or multi-function device (MFD). It is a workplace machine that integrates the service and usefulness of a variety of devices in one, to have slighter marks in a residence or small business setting (the SOHO market segment), or to make available a fundamental document management/distribution/production in a large-office setting. A usual AIO or MFP may actively function as an amalgamation of several or the entire of the following devices: email, fax, photocopier, printer, and scanner.

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38) AIX: Advanced Interactive Executive

AIX is an abbreviation of "Advanced Interactive Executive". It is a progression sequence of proprietary UNIX operating systems designed, created and sold by IBM for a number of its computer platforms. At the beginning launched for the IBM RT PC RISC workstation, AIX at the present supports or has supported an extensive range of hardware platforms, comprising.

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39) ALGOL: Algorithmic Language

ALGOL is an abbreviation of "Algorithmic Language". It is a family of very significant computer programming languages, initially designed and created in the mid-1950s, which significantly influenced a lot of additional languages and was the standard technique for algorithm report used by the Association for Computing Machinery (ACM) in textbooks and academic sources for more than thirty years.

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40) ALPHA

Alpha is the first and foremost letter of the Greek alphabet. In the classification of Greek numerals or numbers, it constitutes a value of 1.

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41) ALU: Arithmetic Logic Unit

ALU is an abbreviation of the "Arithmetic Logic Unit". It is a merged form of a digital electronic circuit that carries out arithmetic and bitwise operations on integer binary numbers. This is in comparison to a floating-point unit (FPU), which runs and functions on floating-point numbers.

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42) AMA: Ask Me Anything

r/IAmA is a subreddit regarding (https://www.reddit.com/r/AMA/) interactive sessions of question-and-answer interviews, which is termed as "AMA" abbreviation of "Ask Me Anything". AMA interviewees have varied from a variety of famous people to everyday people in numerous fields of work. In May 2009, it was founded; the subreddit has gone on to turn out to be one of Reddit's highly well-accepted communities.

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43) AMOLED: Active-Matrix Organic Light-Emitting Diode

AMOLED is an abbreviation of "Active-Matrix Organic Light-Emitting Diode". It is a display piece of equipment based technology, which is used in smartwatches, mobile devices, laptops, and televisions. In AMOLED, OLED (organic light-emitting diode) illustrates a particular category of thin-film-display technology in which organic compounds create the electroluminescent bits and pieces, and active matrix alludes to the technology following the dealing with pixels.

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44) AMP: Ampere

AMP is an abbreviation of "Ampere". It is the base unit of electric current in the International System of Units (SI). It is named after André-Marie Ampère (1775–1836), French mathematician and physicist, regarded as the father of electrodynamics.

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45) ANI: Automatic Number Identification

ANI is an abbreviation of "Automatic number identification". It is an attribute of a network of telecommunications for involuntarily finding out the beginning of telephone number on toll calls for billing purposes. Automatic number identification was at the beginning designed and developed by AT&T Corporation for in-house extensive distance charging purposes, removing the requirement for telephone operators to physically ask for the number of the calling party for a toll call.

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46) ANSI: American National Standards Institute

ANSI is an abbreviation of the "American National Standards Institute". It is a privately-owned non-profit organization that keeps a watch over on the expansion and growth of voluntary consensus standards for products, services, processes, systems, and personnel in the United States. The organization also brings together and organizes U.S. standards with international standards so that American products can be used globally.

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47) Anti-aliasing

Anti-aliasing may allude to any of a variety of systems of practices to put an end to the issues or crisis of aliasing in a sampled signal such as a digital image or digital audio recording.

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48) AOP: Aspect-Oriented Programming

AOP is an abbreviation of "Aspect-Oriented Programming". It is a programming paradigm that aspires towards raising modularity by enabling the partition or division of cross-cutting concerns in computing. It raises modularity by adding up supplemented activities to presented code (advice) devoid of altering the code itself; as an alternative individually indicating which code is customized through a "pointcut" design, such as "log all function calls when the function's name starts with a code 'set'".

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49) AOSP: Android Open-Source Project

AOSP is an abbreviation of the "Android Open-Source Project". It is an open-source initiative of the Android mobile operating system directed by Google. Google designed and created the Android, until the most recent modifications and updates are prepared to be launched, at which spot the source code is provided to the Android Open-Source Project.

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50) APIC: Advanced Programmable Interrupt Controller

APIC is an abbreviation of "Intel's Advanced Programmable Interrupt Controller". It is a familiar associated group of interrupt controllers. In comparison to the 8259 Programmable Interrupt Controller (PIC), the APIC is more highly developed, which specifically allowing the production of multiprocessor systems. It is one of the numerous architectural designs planned to resolve interrupt routing effectiveness concerns in multiprocessor computer systems.

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51) APM: Advanced Power Management

APM is an abbreviation of "Advanced Power Management". It is an API designed and created by Intel and Microsoft. In 1992, it is launched. It allows an operating system functioning an IBM-compatible personal computer to keep up the job with the BIOS, a component of the firmware of computer, to accomplish power management.

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52) App: Mobile Application

A mobile application also alluded to as a "mobile app" or basically, an "app" is a program of the system of the computer or an application of software developed to function on a mobile device such as a phone, tablet, or watch. Apps were initially planned and proposed for productivity and efficiency support such as email, calendar, and contact databases, however, the public insistent request for apps created the basis of quick development and growth into other areas such as mobile games, factory automation, GPS, and location-based services, order-tracking, and ticket purchases, so that there are at present millions of apps obtainable.

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53) AR: Augmented Reality

AR is an abbreviation of "Augmented Reality". It is an expansion of a real-world situation that provides interactive experience through the boost and augmentation by computer-generated perceptual information of the objects that exist in the real world, occasionally across various sensory modalities, comprising visual, auditory, haptic, somatosensory, and olfactory. An augogram is an image generated by the system of the computer, that is used to make AR. Augography is the knowledge and application of creating augograms for AR. AR can be classified as a system that carries out three fundamental attributes:

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54) ARCNET: Attached Resource Computer Network

ARCNET or ARCnet is an abbreviation of "Attached Resource Computer Network". It is a type of communication protocol for local area networks that makes available network services and commonly found in applications such as industrial control, building automation, transportation, robotics and gaming. ARCNET was the primary extensively available networking system for microcomputers; In the 1980s, it turned out to be well-accepted for office automation tasks. It was afterward applied to embedded systems where specific attributes of the protocol are particularly functional and helpful.

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55) Arg: Argument

In the field of computer programming, an argument which is also known as the parameter is a unique type of variable, used in a subroutine to allude to one of the sections of data made available as input to the subroutine. These sections of data are the values of the arguments, which is frequently called actual arguments or actual parameters, with which the subroutine is proceeding to be called/invoked. An ordered list of parameters is generally comprised in the description of a subroutine, according to that, every time the subroutine is called, its arguments for that call are appraised and estimated, and the outcome values can be allotted to the resultant parameters.

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56) ARP: Address Resolution Protocol

ARP is an abbreviation of "Address Resolution Protocol". It is a communication protocol, linked with a specified internet layer address, in general, an IPv4 address used for finding out the link-layer address, such as a MAC address. In the Internet protocol suite, this mapping is a significant function.

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57) ARPA: Advanced Research Projects Agency

ARPA is an abbreviation of "Advanced Research Projects Agency". Currently, it is known as the Defense Advanced Research Projects Agency (DARPA), which is an agency or organization of the United States Department of Defense in charge of the expansion and growth of promising technologies for use by the military.

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58) ARPANET: Advanced Research Projects Agency Network

ARPANET is an abbreviation of "Advanced Research Projects Agency Network". It was the primary wide-area packet-switching network with disseminated management and power and the foremost network to put into service the TCP/IP protocol suite. Both technologies turned out to be the technical establishment of the Internet. The Advanced Research Projects Agency (ARPA) of the United States Department of Defense founded the ARPANET.

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59) ARQ: Automatic Repeat Request

ARQ is an abbreviation of "Automatic repeat request", also known as "Automatic Repeat Query". It is an error-control technique for transmission of data in which a receiver acknowledge by sending messages signifying that it has properly received a packet and mentioned durations of time enabled to progress prior to an acknowledgment is to be received to attain trustworthy data transmission over an untrustworthy service. If the sender does not get a response prior to the timeout, it generally re-transmits the packet as late as the sender receives an acknowledgment or goes beyond an established in advance number of retransmissions.

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60) AS/400: Application System/400

AS/400 is an abbreviation of "Application System/400". In June 1988, the policy of IBM first launched the AS/400, with the operating system being called OS/400. In 2000, it was renamed to the eServer iSeries, in which occasionally the 400 supplemented. In 2006, it was for a second time renamed to System I, and the operating system was renamed to IBM I, as the division of IBM's re-branding initiative.

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61) AS: Autonomous System

AS is an abbreviation of "Autonomous System". It is a compilation of linked associated Internet Protocol (IP) routing prefixes underneath the directive of one or more network operators as a representative of a distinct directorial entity or domain that presents a widespread, evidently described routing policy to the internet.

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62) ASN: Autonomous System Number

ASN is an abbreviation of "Autonomous System Number". It is used as a distinctive number in allocation to each Autonomous System to make use in BGP routing. On the Internet, ASNs are significant for the reason that the ASN distinctively classifies each network. Various association groups can operate Border Gateway Protocol (BGP), by using private AS numbers to an ISP that joins all those association groups to the internet. Even if, there may be various autonomous systems maintained by the ISP, the internet merely perceives the routing guidelines of the ISP.

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63) ASN.1: Abstract Syntax Notation One

ASN.1 is an abbreviation of "Abstract Syntax Notation One". It is a customary interface description language used for describing data structures, those which in a cross-platform manner can be serialized and de-serialized. It is mostly used in telecommunications and computer networking, and particularly in cryptography.

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64) ASPI: Advanced SCSI Programming Interface

ASPI is an abbreviation of "Advanced SCSI Programming Interface". It is an Adaptec-developed programming interface which implements and develops technical standards communication on a computer bus among a SCSI driver module on the one side and SCSI (and ATAPI) peripherals on the further side in computing.

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65) AT: Advance Technology

AT is an abbreviation of "Advance Technology", it is most usually known as IBM Personal Computer AT, also occasionally called the PC AT or PC/AT. It was IBM's second-generation PC, developed and created around the 6 MHz Intel 80286 microprocessor.

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66) ATAPI: Advanced Technology Attachment Packet Interface

ATAPI is an abbreviation of "Advanced Technology Attachment Packet Interface". It is an expansion of ATA for the maintenance of internal devices and through the connection with internal devices which comprise CD-ROM and DVD-ROM drives, tape drives, magneto-optical drives, and large-capacity floppy drives such as the Zip drive and SuperDisk drive. ATAPI was an unusual standard from ATA, before the launch of ATA-4 or ATAPI-4.

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67) ATF: Above the fold

ATF is an abbreviation of "Above the fold". It is a term used to illustrate the area of a web page or the upper half of the front page of a newspaper or tabloid where a significant news story or photograph is over and over again to be found, which is able to be seen and noticeable to the user at the earliest glance, devoid of having to scroll.

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68) ATRAC: Adaptive Transform Acoustic Coding

ATRAC is an abbreviation of "Adaptive Transform Acoustic Coding". It is an associated collection of proprietary audio compression algorithms designed and created by Sony and which is based on psychoacoustic principles. It makes use of a range of advanced technologies to study and evaluate digital sound data, enabling it to diminish the size of that data at the same time as keeping up the splendid sound quality. This capability to diminish the size of data has allowed soundtrack recording media to be prepared smaller and additional tracks to be recorded on them, altering the manner in which a music listener listens to music.

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69) ATX: Advanced Technology eXtended

ATX is an abbreviation of "Advanced Technology eXtended". It is an industry-wide design pattern for a desktop computer's motherboard and power supply arrangement design. In 1995, it is designed and created by Intel to develop and progress on earlier in effect standards like the AT design.

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70) AUI: Attachment Unit Interface

The AUI is an abbreviation of "Attachment Unit Interface". It is a 15-pin physical and logical interface between a computer's network interface card (NIC) or is known as the Medium Attachment Unit (MAU) and an Ethernet cable, described in the original IEEE 802.3 standard for 10BASE5 Ethernet.

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71) AUP: Acceptable Use Policy

AUP is an abbreviation of "acceptable use policy", which is also known as acceptable usage policy or fair use policy. It is an order of sequence of rules applied by the proprietor, originator, or supervisor of a network, website, or service, that controls and confines the manners in which the network, website, or system may be used and place guiding principle as to how it should be used. It is a document, which specifies and instructs restrictions and practices that a user required to be consent to for access to a corporate network or the Internet.

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72) AV: Antivirus

AV is an abbreviation of "Antivirus" software, or anti-virus software, also known as anti-malware. It is a methodologically formulated algorithm program of computer, which is used to put off, identify, and eradicate malware.

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73) AVC: Advanced Video Coding

AVC is an abbreviation of "Advanced Video Coding", which is also alluded to as H.264 or MPEG-4 Part 10, Advanced Video Coding (MPEG-4 AVC). It is a video compression standard based on block-oriented, motion-compensated integer-DCT coding and the progression of converting digital video into a format that covers up a smaller section of memory when it is accumulated or sent out.

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74) AVI: Audio Video Interleave

AVI is an abbreviation of "Audio Video Interleave", known by its originals AVI. The .avi filename extension is an extension of AVI files format, which is a multimedia container format. AVI files can hold in cooperation audio and video data in a file container that enables occurring at the same time audio-with-video playback. AVI files maintain a variety of streaming audio and video as same as the DVD video format, even if these attributes are hardly ever used.

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75) AVR: Automatic Voltage Regulator

AVR is an abbreviation of an "Automatic Voltage Regulator". It is an electronic piece of equipment that works automatically for mechanically upholding generator output terminal voltage at a fixed value under unstable and changeable load and operating temperature. It is used basically to control and regulate the voltage. It obtains the fluctuating voltage and transforms them into an unvarying stable voltage. In the voltage, the fluctuation generally takes place due to the difference in load on the system of supply.

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76) AWS: Amazon Web Services

AWS is an abbreviation of "Amazon Web Services". It is a subordinate organization of Amazon that makes available on-demand cloud computing opportunities and APIs to entities, corporations, businesses, and governments, on a measured device pay-as-you-go basis. In 2006, Amazon Web Services started putting forward IT infrastructure services to businesses in the structure of web services.

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77) B2B: Business-to-Business

B2B is an abbreviation of :Business-to-Business (B2B)", also known as B-to-B. It is a type of business deal or contracts among businesses, such as one engaging a manufacturer and wholesaler, or a wholesaler and a retailer. Business-to-business is a condition where one business makes a profit-making or marketable business deal with another. Business-to-business alludes to the business that is carried out among corporations, rather than among a corporation and individual end-user. Business-to-business places in comparison to business-to-consumer (B2C) and business-to-government (B2G) transactions.

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78) BAT: Baby AT

BAT is an abbreviation of "Baby AT". It is a substitute for the complete AT motherboard. In 1985, it is launched by IBM. The size of the Baby AT is 8.57" wide x 13.04" deep, which is just about identical to the original IBM XT motherboard with some changes in the screw whole spot to be properly set into an AT-style case. The Baby AT is at the present regarded as out of date and was substituted by ATX.

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79) BB: Broadband

BB is an abbreviation of "Broadband". It is a wide bandwidth data transmission which carries and transmits a variety of signals and form of the interchange. It is used to signify any high-speed Internet access that is all the time on and faster than dial-up access over customary analog or ISDN PSTN services in the framework of Internet access.

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80) BBS: BIOS Boot Specification

BBS is an abbreviation of "BIOS Boot Specification". It describes as an attribute inside the BIOS that builds and keeps up a record of the entire IPL devices establish in the system and piles up this record in NV memory.

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81) BBS: Bulletin Board System

BBS is an abbreviation of the "Bulletin Board System". It is a computer server running software or an application, committed to the sharing or exchange of messages or additional files on a network and enables users to connect to the system by using a terminal emulator.

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82) BCC: Blind Carbon Copy

BCC is an abbreviation of "Blind Carbon Copy". It is a form of the system of transmission of email that's incorporated by default in the majority of email programs and maintained by email service providers, it enables the sender of a message to cover up the person who came in the Bcc: field from the further recipients. Blind carbon copy works in association with a carbon copy (cc) and the "To" field to make available different manners of dealing with email recipients.

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83) BER: Bit Error Rate

BER is an abbreviation of the "Bit Error Rate". It is an error which caused due to change in the number of acknowledged bits of data stream all across a communication channel. These changes in bits occur due to some errors, which are noise signal, the intervention of waves, alteration, or due to bit synchronization errors.

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84) BGA: Ball Grid Array

BGA is an abbreviation of "Ball Grid Array". It is used to invariably install or fix devices for integrated circuits on the printed circuit board. It comes in the category of Surface-mount technology, which is a technique to mount any electrical component on the printed circuit board, directly. Its lineage is connected to pin grid array.

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84) BGP: Border Gateway Protocol

BGP is an abbreviation of the "Border Gateway Protocol". It is an Internet Engineering Task Force (IETF) standard based routing protocol, developed to allow data routing and operates as a postal service among autonomous systems (AS) on the Internet. It is categorized as a path vector protocol, which is in charge of finding out all of the access paths that data could pass through and opting for the superlative route.

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85) BHO: Browser Helper Object

BHO is an abbreviation of "Browser Helper Object". It is a plug-in, which is programmed as a dynamic link library for Microsoft Internet Explorer. It is an add-on, created to enhance the functionality of the web browser. They generally come into sight as an application in the form of toolbars, search helpers, and applications, which are sometimes used for monitoring.

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86) BIND: Berkeley Internet Name Domain

BIND is an abbreviation of "Berkeley Internet Name Domain". It is a well-known extensively used domain name system server software. It is an open-source system, which is permitted to download free, provided under the license of Mozilla Public.

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87) BNC: Bayonet Neill–Concelman

BNC is an abbreviation of "Bayonet Neill–Concelman". It is also known as "British Naval Connector" or "Bayonet Nut Connector". It is an instant connect/disconnect electrical connector developed to function at the frequencies of radio in the multi-megahertz range, which normally used with coaxial cable.

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88) BOINC: Berkeley Open Infrastructure for Network Computing

BOINC is an abbreviation of "Berkeley Open Infrastructure for Network Computing". It is a distributed computing system of a decentralized software-development model, which operates on distributed computing resources provided by volunteers to achieve a certain common objective.

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89) BOFH: Bastard Operator From Hell

BOFH is an abbreviation of "Bastard Operator From Hell". It is a fictional character of a computer operator or system administrator, who behaves rudely with the employees when they communicate and request for network or computer related issues.

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90) BO: Back Orifice

BO is an abbreviation of "Back Orifice". It is a computer system based developed program for the process of administration of controlling a computer from a remote site. It is developed to uncover the insufficiency in the security of Microsoft's Windows operating systems.

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91) BOM: Byte Order Mark

BOM is an abbreviation of "Byte Order Mark". It is used as a magic number at the beginning of a stream of text in the form of a special Unicode character, U+FEFF BYTE ORDER MARK. The character at the beginning of a stream of text is used to signal to the program, which is structured to connect through that magic number can signal byte order or endianness, specific Unicode character encoding, e.t.c.

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92) BPDU: Bridge Protocol Data Unit

BPDU is an abbreviation of the "Bridge Protocol Data Unit". It is a data message in the form of a frame that used to exchange or transmits information within an organized superfluous Local Area Network (LAN) by using a MAC address from its source of basis port to the Multicast address. BPDU consists of information regarding the spanning tree protocol which is required to organize and keep up its topology.

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93) BPL: Broadband Over Power Lines

BPL is an abbreviation of "Broadband Over Power Lines". BPL is also occasionally called as Internet over power line (IPL) or power line telecommunication (PLT). It is a system of the process which enables comparatively high-speed broadband digital internet data transmission over the open electric power distribution wiring through regular electric power lines of power line communication (PLC) technology.

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94) BPS: Bits and Bytes per Second

BPS is an abbreviation of "Bits per Second" and also an abbreviation of "Bytes per Second". In the field of telecommunication, the transmission rate of data is measured as the standard number of bits, characters, or symbols or data blocks per unit time transmitting by using the means through a connection of communications in a structure of data-transmission.

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95) BPSK: Binary Phase Shift Keying

BPSK is an abbreviation of "Binary Phase Shift Keying". BPSK is also occasionally called phase reversal keying (PRK), or 2PSK, which is the elementary form of phase-shift keying (PSK). Phase Shift Keying is a progression of the digital modulation method, which processes the transmission of data by modulating the phase of a carrier wave.

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96) Br: Break Key

Br is an abbreviation of "Break Key". The key is available with the set of other keys on the laptop or separate keyboard, which is also called a Pause key because it generally comes in the collective format with Break on the same key.

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97) BRI: Basic Rate Interface

BRI is an abbreviation of "Basic Rate Interface". It is also known as Basic Rate Access. It is one of the two services made available by the Integrated Services Digital Network (ISDN) planned fundamentally for the usage in subscriber lines.

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98) Brouter: A network device

Brouter is a network device, which operates as a combination of both bridge and router. In this single device, a user will get a function of both bridge and router, as it can send out data to create a connection or link as a bridge between networks, and can also route as a router the data to each system inside a network.

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99) BSB: Back-Side Bus

BSB is an abbreviation of the "Back-Side Bus". It was an internal computer bus that links the central processing unit to the cache memory of Level 2. In personal computer microprocessor architecture, there are two categories of buses that transmit data towards the computer’s CPU and from a computer's CPU.

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100) BSOD: Blue Screen of Death

BSOD is an abbreviation of the "Blue Screen of Death". It is a blue screen displayed by a system as an error screen because of kernel error which signifies a system crash; occur due to the highest limit reached by a system at which it cannot for a long time function securely.

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101) BSS: Basic Service Set

BSS is an abbreviation of the "Basic Service Set". It is a term used to illustrate the set of Stations which may communicate as wireless devices collectively inside an IEEE 802.11 wireless local area network. Basic service sets are a subdivision of a group of wireless devices inside an Extended Service Set (ESS) which are furthermore may or may not comprise Access Point (AP).

102) BTC: Bitcoin

BTC is an abbreviation of "Bitcoin". It is a decentralized virtual currency, which makes use of the peer-to-peer network-based technology to function without a central administrator or banks; dealing with financial transactions and the issuing of bitcoins is all together implemented by the peer-to-peer bitcoin network without any requirement for mediators.

103) BTX: Balanced Technology eXtended

BTX is an abbreviation of "Balanced Technology eXtended". It is a form factor for motherboards that initially planned and projected to be the substitution for the aging ATX motherboard form factor by Intel in late 2004 and early 2005.

104) C2: Core 2

C2 is an abbreviation of "Core 2" or "Intel Core 2". It is a family of Intel's processor which was launched on the 27th of July, 2006. It comprises a series of Intel's processors in single, dual, and quad-core microprocessors format based on the Intel multi-core processor micro-architecture. Core 2 and other additional LGA 775 processors can do Virtualization.

105) CAB: Cabinet

CAB is an abbreviation of "Cabinet", which is a Windows Cabinet file contain .cab as a filename extension kept in an archive format and used in Microsoft Windows that supports DEFLATE, Quantum, and LZX data compression algorithms and embedded public key certificates.

106) CAP: Competitive Access Provider

CAP is an abbreviation of "Competitive access providers". It facilitates private procession and unique access services by the developed and advanced Competitive Local Exchange Carrier (CLEC), which is in competition with the Incumbent Local Exchange Carrier (ILEC) in local service areas.

107) CAPTCHA: Completely Automated Public Turing test to tell Computers and Humans Apart

CAPTCHA is an abbreviation of the "Completely Automated Public Turing test to tell Computers and Humans Apart". In the field of computing, it is a form of challenge-response test which is created in a way to verify whether the user on the online platform is human or robot. Many times generally a user comes across CAPTCHA and reCAPTCHA tests on the Internet, which is basically to monitor and manage bots activities but this method or process has its disadvantages.

108) CAS: Column Address Select or Strobe

CAS is an abbreviation of "Column Address Select or Strobe". It is a message signal, which is transmitted by the processor to dynamic random access memory (DRAM) to make operative the column address.

109) CASC: Certificate Authority Security Council

CASC is an abbreviation of the "Certificate Authority Security Council". It is an association of advocacy of the range of traders based industry, which is created to carry out, and manages the education on security concerns of internet, support to Internet security standards and study, and research on Internet security matters and concerns.

110) CATV: Community Access Television

CATV is an abbreviation of "Community Access Television". It is also known as Public Access Television, which is a type of mass media narrowcast through cable TV specialty channels without any involvement of commerce to those wide-ranging public all over the world that are in association with a public or community antenna.

111) CBL: Calculator-Based Laboratory

CBL is an abbreviation of "Calculator-Based Laboratory". It is a mobile data collection based piece of equipment. The process of collection of data through CBL can bring into play either by operating unaided or in combination with the aid of a TI graphing calculator, which enables the user to simply bring together real-time data, examine it and evaluate the outcomes.

112) CBT: Computer Based Training

CBT is an abbreviation of "Computer-based training". It is a training program which entails the use of a personal system or networked computer. The delivery of training can be through a company or educational intranet, Web-based online training, synchronous and asynchronous, Smartphone's, and long-distance learning.

113) CC: Cubic Capacity/ Cubic Centimeter / Carbon Copy

CC is an abbreviation of "Cubic Capacity". It alludes to the capacity and dimension of an engine. It describes the volume of the cylinder of the vehicle connecting the Piston Top Dead Center (TDC) and Bottom Dead Center (BDC), the authentic cylinder volume where the combustion occurs. Therefore, if the CC of an engine is higher, the fuel combustion and the power of the engine will be higher. The cubic capacity or dimension is generally calculated in a cubic centimeter.

114) CC: Creative Commons

CC is an abbreviation of "Creative Commons". Creative Commons is an American non-profit organization, which is committed to helping artists and skilled individuals in sharing their knowledge and creativity by growing the variety and collection of creative works, which can be accessible for others, legally.

115) CCC: Catalyst Control Center

CCC is an abbreviation of the "AMD Catalyst Control Center". It is an elemental part of the AMD Catalyst software engine. It makes use of Qt, which is a free and open-source widget toolkit, as a component of its set of programming tools, for producing graphical user interfaces in addition to cross-platform applications.

116) CCD: Charge Coupled Device

CCD is an abbreviation of the "Charge-Coupled Device". Charge-Coupled Device is a light-sensitive integrated circuit engraved onto a silicon surface for the motion of activity of electric charge, that stores and displays the data for an image by forming light-sensitive elements.

117) CCDE: Cisco Certified Design Expert

CCDE is an abbreviation of the "Cisco Certified Design Expert". It is a technical certification, which was set up to support and provide guidance to the individuals in the industry to evaluate expert standard-based network design skills at the global level.

118) CCFL: Cold Cathode Fluorescent Lamp

CCFL is an abbreviation of a "Cold Cathode Fluorescent Lamp". It is a lighting system lamp that contains cathode that discharges electrons and it also makes use of fluorescence. It is largely used as a source of light in case of backlights, for the reason that in contrast to regular fluorescent lamps, they are smaller in size and have a prolonged duration of life.

119) CCIE: Cisco Certified Internetwork Expert

CCIE is an abbreviation of the "Cisco Certified Internetwork Expert". It is a technical certification, which was set up to support and provide guidance to the industry in making a distinction and selecting out the leading expert networking professionals in the field of internetworking at the global level. The certification is provided by Cisco Systems.

120) CCITT: International Telegraph and Telephone Consultative Committee

CCITT is an abbreviation of the "International Telegraph and Telephone Consultative Committee". It is a division of International Telecommunication Union (ITU), whose objective is to make sure the systematic and effective creation of principles and guidelines done at a favorable time at the same time as describing principles of tariff and accounting, these principles and guidelines are those which takes under the entire areas of telecommunications and Information Communication Technology (ICTs) according to the international level.

121) CCNA: Cisco Certified Network Associate

CCNA is an abbreviation of "Cisco Certified Network Associate". It is a certification provided by Cisco to make a career in the field of information technology. It is an associate level based career certification, used in the networking, security and automation areas in the field of information technology.

122) CCNP: Cisco Certified Network Professional

CCNP is an abbreviation of the "Cisco Certified Network Professional". Cisco Certified Network Professional is an individual, who turned out to be an expert as a Cisco career certified professional in the field of networking in information technology.

123) CD: Compact Disc

CD is an abbreviation of "Compact Disc". It is a digital optical disc originally developed to store the audio of recordings in the format of a data file used as a portable storage medium. It was co-invented by Philips and Sony and launched in the market in 1982. Subsequently, it was adapted as a data storage medium in the format of CD-ROM.

124) CDA: Communication Decency Act

CDA is an abbreviation of the "Communication Decency Act". It is a legislation act also called Title V of the Telecommunications Act of 1996, enacted by the U.S. Congress in 1996.

125) CD-DA: Compact Disc Digital Audio

CD-DA is an abbreviation of "Compact Disc Digital Audio". It is also known as Audio CD, is the established conventional format for audio compact discs. The data format of Compact Disc Digital Audio and all the substantial specifications and standards are stated in the Red Book.

126) CDDB: Compact Disc Database

CDDB is an abbreviation of the "Compact Disc Database". It is a database, which contains information related to audio compact discs and can be tracked through applications or software on the internet. The accessibility of audio compact discs related information is provided by the database only after the client of the database compute and evaluate unique disc ID and its request and then give permission for the access.

127) CDDI: Copper Distributed Data Interface

CDDI is an abbreviation of "Copper Distributed Data Interface". It is a copper-based standard for transmission of data in the field of networking in local areas. It is an alternative of fiber-based standard, which is used in optical fiber lie under physical medium, known as Fiber Distributed Data Interface.

128) CDE: Common Desktop Environment

CDE is an abbreviation of the "Common Desktop Environment". It is a desktop environment, which works for operating systems like UNIX and OpenVMS based on the combination of attributes of graphical user interface and widget toolkit, known as Motif widget toolkit.

129) CDFS: Compact Disc File System

CDFS is an abbreviation of the "Compact Disc File System". It is a virtual file system, which is used to store data in the form of tracks and images on Compact Discs. It is a file system standard, which was published by the International Organization for Standardization (ISO) and is also known as "ISO 9660." It works for operating systems like Unix and Linux.

130) CD-i: Compact Disk-Interactive

CD-i is an abbreviation of "Compact Disk-Interactive". It is a standard of software and hardware-based configuration of digital optical disc data storage, created mutually in cooperation by Philips International and Sony Corporation to store audio tracks, video clips, and binary data on compact optical disks.

131) CDN: Computer Delivery Network

CDN is an abbreviation of "Computer Delivery Network", which is also known as Content Distribution Network. It is a geographically distributed network of server applications or appliances and their committed centers of data inside a building space, whose main objective is to offer and make available faster delivery of content spatially in comparison to the end-users.

132) CDP: Columbia Data Products

CDP is an abbreviation of "Columbia Data Products". It was a data security based corporation which intended to manufacture a number of the foremost IBM PC clones in 1976. It produced some Z80 based prominent computers with multiprocessors and graphics facilities but after that in only a small duration of time, it lost momentum in that market and not capable of to produce more such prominent computer models, although, soon after, it made a change in its production by shifting its priority from hardware-based to the software development based corporation.

133) CDP: Continuous Data Protection

CDP is an abbreviation of "Continuous Data Protection". It is also called as a real-time backup, is a system of data storage that backs up data in an organization or enterprise on a system of the computer, whenever an automatic capturing and modification of data happened.

134) CDP: Certificate in Date Processing

CDP is an abbreviation of a Certificate in Data Processing. It was initiated and emerged between 1960 to 1962, under the administration of the Data Processing Management Association (DPMA).

135) CDP: Certificate in Date Processing

CDP is an abbreviation of a Certificate in Data Processing. It was initiated and emerged between 1960 to 1962, under the administration of the Data Processing Management Association (DPMA).

136) CDP: Content delivery Platform

CDP is an abbreviation of the "Content Delivery Platform". It is a "software as a service" based content distribution platform through the method of delivery by making the use of embedded software code.

137) CD-R: Compact Disk Recordable

CD-R is an abbreviation of "Compact Disk Recordable". It is a storage disc configuration, a type of digital optical compact disc which writes once and read randomly numerous numbers of times. The term "recordable" in CD-R is used for the reason that CD-Rs are frequently used in recordings of audio.

138) CD-ROM: Compact Disc Read-Only Memory

CD-ROM is an abbreviation of "Compact Disc Read-Only Memory". It is a data storage memory in the form of an optical compact disc, which is read by a system, contains an optical drive. The term "ROM" in the CD-ROM signifies the data stored on the compact disc is a type of "read-only" data, which cannot be changed or removed. In the 1983 Yellow Book, the initial data arrangement set of the Compact Disc Read-Only Memory was described by Philips and Sony.

139) CD-ROM XA: CD-ROM Extended Architecture

CD-ROM XA is an abbreviation of "CD-ROM Extended Architecture". It is an extension, a modified version of CD-ROM, which merges compressed audio, video, and system of computer data and enables the accessibility of all the different types of data at the same time.

140) CD-RW: Compact Disc Read Writable

CD-RW is an abbreviation of "Compact Disc Read Writable". It is a storage configuration of a digital optical compact disc, which can be written and re-written several times. In a 1997 addition to Philips and Sony's Orange Book, it was launched by Hewlett-Packard, Mitsubishi, Philips, Ricoh, and Sony. In the duration of each rewritable session, CD-RW enables the erasing of the data function. On the other hand, the process of alteration of data cannot be possible in the duration of CD-RW sessions.

141) CDSL: Consumer Digital Subscriber Line

CDSL is an abbreviation of the "Consumer Digital Subscriber Line". Consumer DSL is one of the categories of Digital Subscriber Line (DSL) technology, which works as a broadband transmission technology by transmitting digital data all through the telephone lines to make available internet services. It was established and trademarked by Rockwell Corporation.

142) CentOS: Community Enterprise Operating System

CentOS is an abbreviation of the "Community Enterprise Operating System". It is Community-assisted operative free software, which puts effort by paying attention to delivering a solid built open-source interconnected complex network around a Linux distribution platform, practically and usefully attuned with its upstream foundational basis, Red Hat Enterprise Linux (RHEL).

143) CERN: Conseil Européen pour la Recherche Nucléaire

CERN is an abbreviation of "Conseil Européen pour la Recherche Nucléaire". In English, it is known as the "European Organization for Nuclear Research". It was set up in 1954, manages the biggest particle physics laboratory in the world. It's headquarter is situated in a northwest suburb of Geneva and has 23 member states. Its major role is to make available the particle accelerators and additional facilities and infrastructure, which are required for research and study of high-energy physics.

144) CERT: Computer Emergency Response Team

CERT is an abbreviation of the "Computer Emergency Response Team". It is also known as the Computer Emergency Readiness Team and Computer Security Incident Response Team (CSIRT). It is a significant term for an organized group of professional skilled specialists, which manages the system of computer-related safety and protection based events and occurrences.

145) CES: Consumers Electronics Show

CES is an abbreviation of the "Consumers Electronics Show". It is a highly significant and prominent annual trade tech event well arranged in a systematic manner by the Consumer Technology Association (CTA).

146) CF: CompactFlash

CF is an abbreviation of "CompactFlash". It is a mass storage memory card-based format, which uses the electronic non-volatile computer memory storage medium known as Flash memory. In 1994, it was first created by SanDisk.

147) CGA: Color Graphics Adapter

CGA is an abbreviation of "Color Graphics Adapter" also known as "IBM Color/Graphics Monitor Adapter". In 1981, it was launched by IBM, the first graphics card and also the first color display card provided by IBM.

148) CGI: Common Gateway Interface

CGI is an abbreviation of the "Common Gateway Interface". It is an interface specification defined by World Wide Web Consortium (W3C), through which a web server passes a Web user's request to command-line interface programs for the implementation of programs running on a web server that dynamically creates web pages, and to accept that request's acknowledgment data back to pass on to the user.

149) CH: CollegeHumor

CH is an abbreviation of :CollegeHumor". It is a company that provides comedy content on the internet. It's headquarter is situated in Los Angeles. The company also produces content to publish on his YouTube channel with the name CollegeHumor.

150) CHAP: Challenge-Handshake Authentication Protocol

CHAP: Challenge-Handshake Authentication ProtocolCHAP is an abbreviation of the "Challenge-Handshake Authentication Protocol". It is an identity verification protocol used by Point-to-Point Protocol (PPP) servers, which process by authenticating a user to a network entity in the field of computing. It is mainly used for security purposes, which in contrast to Password Authentication Protocol (PAP) provides much satisfactory and efficient security.

Computer Acronyms and Abbreviations: List View

Here is the list of Computer Acronyms and Abbreviations: Complete List:

Abbreviation	Full form
2D	Two Dimensional
2FA	Two-factor Authentication
2G	Second Generation
3D	Three Dimensional
3G	Third Generation
3GPP	3rd Generation Partnership Project
5G	Fifth Generation
24/7	Twenty-Four Seven
AAC	Advanced Audio Coding
AAM	Automatic Acoustic Management
ABC	Atanasoff–Berry Computer
AbEnd	Abnormal End
ABIOS	Advanced Basic Input / Output System
AC	Alternating Current
ACE	Access Control Entry
ACK	Acknowledgment
ACL	Access Control List
ACM	Association for Computing Machinery
ACPI	Advanced Configuration and Power Interface
ACR	Attenuation-to-crosstalk Ratio
AD	Active Directory
ABP	Adblock Plus
ADC	Analog-to-Digital Converter
ADO	ActiveX Data Objects
ADPCM	Adaptive Differential Pulse-Code Modulation
ADSI	Analog Display Services Interface
ADSL	Asymmetric Digital Subscriber Line
AE	Adobe After Effects
AES	Advanced Encryption Standard
ADB	Apple Desktop Bus
AF	Autofocus
AGP	Accelerated Graphics Port
AHCI	Advanced Host Controller Interface
AI	Artificial Intelligence
AIM	AOL Instant Messenger
AIML	Artificial Intelligence Markup Language
AIO	All-in-one
AIX	Advanced Interactive Executive
ALGOL	Algorithmic Language
ALPHA	ALPHA
ALU	Arithmetic Logic Unit
AMA	Ask Me Anything
AMOLED	Active-Matrix Organic Light-Emitting Diode
AMP	Ampere
ANI	Automatic Number Identification
ANSI	American National Standards Institute
Anti-aliasing	Anti-aliasing
AOP	Aspect-Oriented Programming
AOSP	Android Open-Source Project
APIC	Advanced Programmable Interrupt Controller
APM	Advanced Power Management
App	Mobile Application
AR	Augmented Reality
ARCNET	Attached Resource Computer Network
Arg	Argument
ARP	Address Resolution Protocol
ARPA	Advanced Research Projects Agency
ARPANET	Advanced Research Projects Agency Network
ARQ	Automatic Repeat Request
AS/400	Application System/400 (AS/400)
AS	Autonomous System
ASN	Autonomous System Number
ASN.1	Abstract Syntax Notation One
ASPI	Advanced SCSI Programming Interface
AT	Advance Technology
ATAPI	Advanced Technology Attachment Packet Interface
ATF	Above the fold
ATRAC	Adaptive Transform Acoustic Coding
ATX	Advanced Technology eXtended
AUI	Attachment Unit Interface
AUP	Acceptable Use Policy
AV	Antivirus
AVC	Advanced Video Coding
AVI	Audio Video Interleave
AVR	Automatic Voltage Regulator
AWS	Amazon Web Services
B2B	Business-to-Business
BAT	Baby AT
BB	Broadband
BBS	BIOS Boot Specification
BBS	Bulletin Board System
BCC	Blind Carbon Copy
BER	Bit Error Rate
BGA	Ball Grid Array
BGP	Border Gateway Protocol
BHO	Browser Helper Object
BIND	Berkeley Internet Name Domain
BNC	Bayonet Neill–Concelman
BOINC	Berkeley Open Infrastructure for Network Computing
BOFH	Bastard Operator From Hell
BO	Back Orifice
BOM	Byte Order Mark
BPDU	Bridge Protocol Data Unit
BPL	Broadband Over Power Lines
BPS	Bits and Bytes per Second
BPSK	Binary Phase Shift Keying
Br	Break Key
BRI	Basic Rate Interface
Brouter	A network device
BSB	Back-Side Bus
BSOD	Blue Screen of Death
BSS	Basic Service Set
BTC	Bitcoin
BTX	Balanced Technology eXtended
C2	Core 2
CAB	Cabinet
CAP	Competitive Access Provider
CAPTCHA	Completely Automated Public Turing test to tell Computers and Humans Apart
CAS	Column Address Select or Strobe
CASC	Certificate Authority Security Council
CATV	Community Access Television
CBL	Calculator-Based Laboratory
CBT	Computer Based Training
CC	Cubic Capacity/ Cubic Centimeter / Carbon Copy
CC	Creative Commons
CCC	Catalyst Control Center
CCD	Charge Coupled Device
CCDE	Cisco Certified Design Expert
CCFL	Cold Cathode Fluorescent Lamp
CCIE	Cisco Certified Internetwork Expert
CCITT	International Telegraph and Telephone Consultative Committee
CCNA	Cisco Certified Network Associate
CCNP	Cisco Certified Network Professional
CD	Compact Disc
CDA	Communication Decency Act
CD-DA	Compact Disc Digital Audio
CDDB	Compact Disc Database
CDDI	Copper Distributed Data Interface
CDE	Common Desktop Environment
CDFS	Compact Disc File System
CD-i	Compact Disk-Interactive
CDN	Computer Delivery Network
CDP	Columbia Data Products
CDP	Continuous Data Protection
CDP	Certificate in Date Processing
CDP	Content delivery Platform
CD-R	Compact Disk Recordable
CD-ROM	Compact Disc Read-Only Memory
CD-ROM XA	CD-ROM Extended Architecture
CD-RW	Compact Disc Read Writable
CDSL	Consumer Digital Subscriber Line
CentOS	Community Enterprise Operating System
CERN	Conseil Européen pour la Recherche Nucléaire
CERT	Computer Emergency Response Team
CES	Consumers Electronics Show
CF	CompactFlash
CGA	Color Graphics Adapter
CGI	Common Gateway Interface
CH	CollegeHumor
CHAP	Challenge-Handshake Authentication Protocol
CHAR	Character
ChDir	Change Directory
CHS	Cylinder-Head-Sector
CIDR	Classless Inter-Domain Routing
CIFS	Common Internet File System
CIM	Common Information Model
CIR	Committed Information Rate
CISC	Complex Instruction Set Computer
CISSP	Certified Information Systems Security Professional
CLI	Command Line Interface
CLNS	Connectionless Network Service
CLOS	Common Lisp Object System
CLR	Common Language Runtime
CMA	Computer Misuse Act
CMC	Computer Mediated Communication
CMOS	Complementary Metal-Oxide Semiconductor
CMS	Content Management System
CMYK	Cyan, Magenta, Yellow and Key or Black
CNCT	Certified Network Computer Technician
CNE	Certified Novell Engineer
CNR	Communications and Networking Riser
CNST	Computer Network System Technician
COA	Certificate of Authenticity
COASt	Cache on a Stick
COB	Chip On Board
COBOL	Common Business-Oriented Language
COM	Component Object Model
COMDEX	Computer Dealers' Exhibition
Celsius	Temperature measuring scale
Certificate Authority	Certificate Authority
CrunchBang Linux	CrunchBang Linux
Cascading Style Sheets	Cascading Style Sheets
Cellular Telephone	Cellular Telephone
Certification (Cert)	Certification (Cert)
Chirp Spread Spectrum	Chirp Spread Spectrum
Code Segment	Code Segment
Codec	Codec
Electromagnetic Coil	Electromagnetic Coil
CE: Collectors' Edition	CE: Collectors' Edition
CompTIA (Computing Technology Industry Association)	CompTIA (Computing Technology Industry Association)
CGI	Computer-Generated Imagery
Computer Output Microfilm	Computer Output Microfilm
Computer Service Technician	Computer Service Technician
COPPA	Children's Online Privacy Protection Act
Core Dump	Core Dump
CPA	Cost per action
CPAN	Comprehensive Perl Archive Network
CPC	Cost per Click
CPGA	Ceramic Pin Grid Array
CPL	Combined Programming Language
CPM	Cost per mile
CR	Carriage Return
CRC	Cyclic Redundancy Check
CRL	Certificate Revocation List
CRM	Customer Relationship Management
CSMA	Carrier Sense Multiple Access
CSNET	Computer Science Network
CSS	Content Scramble System
CSU/DSU	Channel Service Unit/Data Service Unit
CSV	Comma-Separated Values
CTA	Call to action
CTCP	Client-to-client protocol
CTD	Crash to Desktop
CTO	Chief Technology Officer
CTR	Click-through rate
Ctrl	Control Key
CU	Control Unit
CUPS	Common UNIX Printing System
Customer Service	Customer Service
CUT	Coordinated Universal Time
CVE	Common Vulnerabilities and Exposures
CVS	Concurrent Version System
D2D	Disk to Disk
DAC	Digital to Analog Converter
DACL	Discretionary Access Control List
Dart	An open source object-oriented programming language.
DASD	Direct-Access Storage Device
DAT	Digital Audio Tape
DAW	Digital Audio Workstation
DB	Database
DBA	Database Administrator
DBAN	Darik's Boot and Nuke
DBMS	Database Management System
DC	Direct Current
DCE	Data Circuit-terminating Equipment
DCOM	Distributed Component Object Model
DDBMS	Distributed Database Management System
DDE	Dynamic Data Exchange
DDL	Data Definition Language
DDNS	Dynamic DNS
DDO	Disk Drive Overlay
DDOS	Distributed Denial of Service
DDR	Double Data Rate
DDR2 SDRAM	Double Data Rate 2 Synchronous Dynamic Random-Access Memory
DDR3 SDRAM	Double Data Rate 3 Synchronous Dynamic Random-Access Memory
DDR4 SDRAM	Double Data Rate 4 Synchronous Dynamic Random-Access Memory
DDS	Digital Data Storage
DEA	Digital Encryption Algorithm
DEC	Digital Equipment Corporation
Denial of Service	Denial of Service
DHCP	Dynamic Host Configuration Protocol
DHTML	Dynamic Hypertext Markup Language
DID	Direct Inward Dial
DIF	Data Interchange Format
Digital Linear Tape	Digital Linear Tape
DIMM	Dual In-line Memory Module
DIP	Dual In-line Package
Disk Operating System	Disk Operating System
DisplayPort	DisplayPort
DIVX	Digital Video Express
Download	Download
Downloadable Content	Downloadable Content
Dynamic Analysis and Replanning Tool	Dynamic Analysis and Replanning Tool
DLA	Drive Letter Access
DLC	Digital Loop Carrier
DLL	Dynamic-link library
DLNA	Digital Living Network Alliance
DLT	Digital Linear Tape
DM	Direct Message
DMFC	Direct Methanol Fuel Cell
Domain Controller	Domain Controller
DCC	Direct Client-to-Client
Discretionary Access Control	Discretionary Access Control
Distributed Computing Environment	Distributed Computing Environment
Distributed Management Task Force	Distributed Management Task Force
D: Dlang	A multi-paradigm-based programming language.
Data Center	is a committed space, which is used for the purpose of storing computer systems and its components...
Dial-on-demand routing	is a process of routing in which by following a requirement...
PLCC	Plastic-Leaded Chip Carrier
TRP	Television Rating Point
WEP	Wired Equivalent Privacy
XHTML	Extensible Hypertext Markup Language