Computer Acronyms Archive
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The Ultimate Computer Acronyms Archive www.acronyms.ch Last updated: September 8, 2014 «I'm sitting in a coffee shop in Milford, NH. In the booth next to me are two men, a father and a son. Over coffee, the father is asking his son about modems, and the son is holding forth pretty well on the subject of fax compatibility, UART requirements, and so on. But he's little out of date: The father asks, "So should I get one with a DSP?" "A what?" says the son. You just can't get far if you're not up on the lingo. You might squeak by in your company of technological nonexperts, but even some of them will surprise you. These days, technical acronyms quickly insinuate themselves into the vernacular.» Raphael Needleman THIS DOCUMENT IS PROVIDED FOR INFORMATIONAL PURPOSES ONLY. The information contained in this document represents the current view of the authors on this subject as of the date of publication. 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Page 2 of 191 www.acronyms.ch µ (mu) ABAP 0-9 Å: Ångstrom 0-9 Length measurement unit corresponding to 10 power -10 meters A µ (mu): Micro A/D: Analog/Digital Prefix for 10 power -6 (Hardware) 1GL: 1st Generation Language A/P: Accounts Payable Machine language (Software) A/PC: Auto Personal Computer 24/7: 24 hours a day/7 days a week (Hardware) 2D: 2-Dimensional A/R: Accounts Receivable 2D: Double Density A/UX: Apple UniX (Hardware) (Operating systems) (Apple) 2G: 2nd Generation AA: Advertising Agent Mobile telecommunication network allowing 14.4 kbps transfer rates (Communication) AA: Anti-Aliasing Method for removing jagged edges 2GL: 2nd Generation Language Assembler and other low-level languages (Software) AA: Auto Answer 2HD: 2 sides, High Density AAA: Asp Application Aggregator (Hardware) AAA: Authentication, Authorization and Accounting 2PC: 2-Phase Commit A term for a framework for intelligently controlling access to computer resources, enforcing policies, auditing usage, and Protocol to allow replicated data to be modified at multiple sites providing the information necessary to bill for services. These 2S: 2 Sides combined processes are important for effective network management (Security) (Hardware) 2S2D: 2 Sides, Double Density AAB: All-to-All Broadcast (Hardware) AAC: Advanced Audio Coding 2SHD: 2 Sides, High Density AAC: Authorization and Access Control (Hardware) (Security) 3D: 3-Dimensional AACS: Advanced Access Content System 3DES: Triple Data Encryption Standard Standard for content distribution and digital rights management, intended to restrict access to and copying of the "next (Security) generation" of optical discs and DVDs 3G: 3rd Generation AAF: Advanced Authoring Format Mobile telecommunication network allowing 300-400 kbps transfer rates (Communication) AAL: Atm Adaption Layer Layer 3 of the ATM architecture. Adapts user traffic into/from ATM 3GIO: 3rd Generation Input Output 48-byte payloads (Communication) (Hardware) (Intel) AAM: Automatic Acoustic Management 3GL: 3rd Generation Language Feature that allows the host to request that the drive modify its High level programming languages (Software) acoustic behavior (Hardware) 3GPP: Third Generation Partners Project AAP: Applications Access Point See http://www.3gpp.org/ (Organizations) (DEC) 4G: 4th Generation AARP: Appletalk Address Resolution Protocol Mobile telecommunication network allowing 10Mbit/s transfer (Network) (Apple) rates (Communication) AAS: All-to-All Scatter 4GL: 4th Generation Language Database access languages (Software) AAS: Auto Area Segmentation Scanner technology which detects and optimizes text and 4GT: 4 Gigabyte memory Tuning graphics on the same page (Hardware) (Epson) 5GL: 5th Generation Language AASP: Ascii Asynchronous Support Package Artificial intelligence languages (Software) AAT: Average Access Time 6DOF: Six Degrees Of Freedom AATP: Authorized Academic Training Program (Microsoft) A ABA: Address Book Archive A: Ampere Filename extension Current measurement unit ABAP: Advanced Business Application Programming A: Anchor Powerful programming language created specifically for HTML tag developing SAP applications. ABAP Objects is the new object- oriented generation of this language, designed to respond to the a: atto needs of SAP's future strategies and environments (Software) Prefix for 10 power -18 www.acronyms.ch Page 3 of 191 ABC ACR ABC: Atanasoff-Berry Computer ACE: Access Control Entry A First digital calculating machine that used vacuum tubes An entry in an Access Control List (ACL). An ACE contains a set of access rights and a security identifier (SID) that identifies a ABEL: Advanced Boolean Expression Language trustee for whom the rights are allowed, denied, or audited ABEND: ABnormal END (Operating systems) (Software) ACE: Adobe Certified Expert ABI: Application Binary Interface (Adobe) Defines the binary system interface between compiled ACE: Advanced Computing Environment applications and the operating system on which they run (Software) ACE: Adverse Channel Enhancements ABIOS: Advanced Basic Input Output System ACE: Apacer Compression Explorer ABIST: Automatic Built-In Self-Test ACE: Ascii Compatible Encoding (IBM) ACE: Automatic Computing Engine ABLE: Adaptive Battery Life Extender ACF: Access Control Field ABLE: Agent Building and Learning Environment ACF: Advanced Communications Function (IBM) ACH: Automated Clearing House ABM: Asynchronous Balanced Mode ACIA: Asynchronous Communication Interface HDLC data transfer mode (Network) Adapter ABNF: Augmented Backus Naur Form ACIAS: Automated Calibration Interval Analysis ABNF: Augmented Backus Naur Form System Syntax description for programming languages ACID: Atomicity, Consistency, Isolation and ABR: Available Bit Rate Durability One of five ATM Forum defined service types. Supports variable (Software) bit rate data traffic with flow control, a minimum guaranteed data transmission rate and specified performance parameters ACIS: American Committee for Interoperable (Communication) Systems ABRS: Automated Book Request System ACK: ACKnowledge A transmission control character transmitted by a station as an ABS: ABSolute affirmative response to the station with which the connection has ABS: Address Book Synchronization been set up. (Communication) (IBM) ACL: Access Control List ABS: Auto Balance System For granting or denying access to computer resources (security) (Operating systems) System to reduce vibration and noise in a peripheral (Hardware) ACL: Advanced Cmos Logic ABS: Automatic Backup System ACL: Asynchronous ConnectionLess ABT: ABorT (Communication) ABTS: Ascii Block Terminal Services ACM: Abstract Control Model AC: Access Customer (Software) (Communication) ACM: Afp Conversion Module AC: Alternate Current (Software) AC: Audio Codec ACM: Association for Computing Machinery (Hardware) (Organizations) AC: Authentication Center ACM: Audio Compression Manager AC: AutoCheck (Microsoft) AC: Automatic Computer ACMS: Application Control Management System ACAP: Application Configuration Access Protocol ACNM: Application Centric Network Management Designed to support remote storage and access of program (Software) option, configuration and preference information ACO: Alternate Checksum Option ACC: ACCumulator (Network) ACC: Authorization Contract for Containers ACP: Active Code Page Specification (JSR-115) that defines new java.security.Permission ACP: Ancillary Control Program classes to satisfy the Java 2 Platform, Enterprise Edition (J2EE) authorization model (Software) (Sun) ACP: Auxiliary Control Process ACD: Automatic Call Distribution ACPI: Advanced Configuration and Power Interface ACDI: Asynchronous Communications Device (Hardware) Interface ACR: Advanced Communication Riser ACE: Access Control Encryption (Hardware) Page 4 of 191 www.acronyms.ch ACR ADMD ACR: Allowed Cell Rate ADC: Adaptive Data Compression ACROSS: Automated Cargo Release and Operations (Hayes) A Service System ADC: ADd with Carry ACS: Access Control Server ADC: Advanced Data Connector ACS: Access Control Set (Databases) (Microsoft) ACS: Access Control System ADC: Analog to Digital Converter A device that translates analog signals to digital signals. Contrast ACS: Admission Control Service with digital-to-analog converter (DAC). (Hardware) (Network) (Microsoft) ADC: Apple Developer Connection ACS: Advanced Computer System (Apple) (IBM) ADC: Apple Display Connector ACS: Anti Curl System (Hardware) (Apple) ACS: Asynchronous Communication Server ADC: Application Delete Certificate ACS: Automatic Class Selection ADC: Application Development Consultant ACS: Automatic Contrast Selection ADCAP: ADvanced CAPability ACSE: Association Control Service Element Used to refer to advanced capability, cuttin edge technology, also in military applications (e.g. ADCAP missile) The method used in International Organization for Standardization's open systems interconnection (OSI) for ADCCP: Advanced Data