The Ultimate Computer Acronyms Archive
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The Ultimate Computer Acronyms Archive www.acronyms.ch Last updated: October 31, 2007 «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 But he's little out of date: The father asks, "So should I get one with a DSP?"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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This document may not be distributed for profit. www.acronyms.ch Page 2 of 184 µ (mu) ABAP 0-9 Å: Ångstrom 0-9 Length measurement unit corresponding to 10 power -10 A meters µ (mu): Micro Prefix for 10 power -6 A/D: Analog/Digital (Hardware) 1GL: 1st Generation Language Machine language (Software) A/P: Accounts Payable 24/7: 24 hours a day/7 days a week A/PC: Auto Personal Computer 2D: 2-Dimensional (Hardware) 2D: Double Density A/R: Accounts Receivable (Hardware) A/UX: Apple UniX 2G: 2nd Generation (Operating systems) (Apple) Mobile telecommunication network allowing 14.4 kbps AA: Advertising Agent transfer rates (Communication) AA: Anti-Aliasing 2GL: 2nd Generation Language Method for removing jagged edges Assembler and other low-level languages (Software) AA: Auto Answer 2HD: 2 sides, High Density AAA: Asp Application Aggregator (Hardware) AAA: Authentication, Authorization and 2PC: 2-Phase Commit Accounting Protocol to allow replicated data to be modified at multiple A term for a framework for intelligently controlling access to sites computer resources, enforcing policies, auditing usage, and 2S: 2 Sides providing the information necessary to bill for services. (Hardware) These combined processes are important for effective network management (Security) 2S2D: 2 Sides, Double Density AAB: All-to-All Broadcast (Hardware) 2SHD: 2 Sides, High Density AAC: Advanced Audio Coding (Hardware) AAC: Authorization and Access Control 3D: 3-Dimensional (Security) 3DES: Triple Data Encryption Standard AACS: Advanced Access Control System (Security) AAF: Advanced Authoring Format 3G: 3rd Generation AAL: Atm Adaption Layer Mobile telecommunication network allowing 300-400 kbps Layer 3 of the ATM architecture. Adapts user traffic into/from transfer rates (Communication) ATM 48-byte payloads (Communication) 3GIO: 3rd Generation Input Output AAM: Automatic Acoustic Management (Hardware) (Intel) Feature that allows the host to request that the drive modify its acoustic behavior (Hardware) 3GL: 3rd Generation Language High level programming languages (Software) AAP: Applications Access Point 3GPP: Third Generation Partners Project (DEC) See http://www.3gpp.org/ (Organizations) AARP: Appletalk Address Resolution Protocol 4G: 4th Generation (Network) (Apple) Mobile telecommunication network allowing 10Mbit/s transfer AAS: All-to-All Scatter rates (Communication) AAS: Auto Area Segmentation 4GL: 4th Generation Language Scanner technology which detects and optimizes text and Database access languages (Software) graphics on the same page (Hardware) (Epson) 4GT: 4 Gigabyte memory Tuning AASP: Ascii Asynchronous Support Package 5GL: 5th Generation Language AAT: Average Access Time Artificial intelligence languages (Software) AATP: Authorized Academic Training Program 6DOF: Six Degrees Of Freedom (Microsoft) ABA: Address Book Archive A Filename extension A: Ampere ABAP: Advanced Business Application Current measurement unit Programming A: Anchor Powerful programming language created specifically for developing SAP applications. ABAP Objects is the new HTML tag object-oriented generation of this language, designed to a: atto respond to the needs of SAP's future strategies and Prefix for 10 power -18 environments (Software) www.acronyms.ch Page 3 of 184 ABC ACR ABC: Atanasoff-Berry Computer ACE: Access Control Entry First digital calculating machine that used vacuum tubes An entry in an Access Control List (ACL). An ACE contains a A set of access rights and a security identifier (SID) that ABEL: Advanced Boolean Expression Language identifies a trustee for whom the rights are allowed, denied, or ABEND: ABnormal END audited (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: Ascii Compatible Encoding ABIST: Automatic Built-In Self-Test ACE: Automatic Computing Engine (IBM) ACF: Access Control Field ABLE: Adaptive Battery Life Extender ACF: Advanced Communications Function ABLE: Agent Building and Learning Environment ACH: Automated Clearing House (IBM) ACIA: Asynchronous Communication Interface ABM: Asynchronous Balanced Mode Adapter HDLC data transfer mode (Network) ACIAS: Automated Calibration Interval ABNF: Augmented Backus Naur Form Analysis System ABR: Available Bit Rate ACID: Atomicity, Consistency, Isolation and One of five ATM Forum defined service types. Supports Durability variable bit rate data traffic with flow control, a minimum (Software) guaranteed data transmission rate and specified performance parameters (Communication) ACIS: American Committee for Interoperable Systems ABRS: Automated Book Request System ACK: ACKnowledge ABS: ABSolute A transmission control character transmitted by a station as ABS: Address Book Synchronization an affirmative response to the station with which the (IBM) connection has been set up. (Communication) ABS: Auto Balance System ACL: Access Control List System to reduce vibration and noise in a peripheral For granting or denying access to computer resources (Hardware) (security) (Operating systems) ABS: Automatic Backup System ACL: Advanced Cmos Logic ABT: ABorT ACL: Asynchronous ConnectionLess (Communication) ABTS: Ascii Block Terminal Services ACM: Afp Conversion Module AC: Access Customer (Software) (Communication) ACM: Association for Computing Machinery AC: Alternate Current (Organizations) AC: Audio Codec ACM: Audio Compression Manager (Hardware) (Microsoft) AC: Authentication Center ACMS: Application Control Management System AC: AutoCheck ACNM: Application Centric Network AC: Automatic Computer Management ACAP: Application Configuration Access (Software) Protocol ACO: Alternate Checksum Option ACC: ACCumulator (Network) ACC: Authorization Contract for Containers ACP: Active Code Page Specification (JSR-115) that defines new ACP: Ancillary Control Program java.security.Permission classes to satisfy the Java 2 ACP: Auxiliary Control Process Platform, Enterprise Edition (J2EE) authorization model (Software) (Sun) ACPI: Advanced Configuration and Power ACD: Automatic Call Distribution Interface (Hardware) ACDI: Asynchronous Communications Device Interface ACR: Advanced Communication Riser (Hardware) ACE: Access Control Encryption ACR: Allowed Cell Rate www.acronyms.ch Page 4 of 184 ACROSS ADO ACROSS: Automated Cargo Release and ADC: Analog to Digital Converter Operations Service System A device that translates analog signals to digital signals. A Contrast with digital-to-analog converter (DAC). (Hardware) ACS: Access Control Server ADC: Apple Developer Connection ACS: Access Control Set (Apple) ACS: Access Control System ADC: Apple Display Connector ACS: Admission Control Service (Hardware) (Apple) (Network) (Microsoft) ADC: Application Delete Certificate ACS: Advanced Computer System ADC: Application Development Consultant (IBM) ACS: Anti Curl System ADCAP: ADvanced CAPability Used to refer to advanced capability, cuttin edge technology, ACS: Asynchronous Communication Server also in military applications (e.g. ADCAP missile) ACS: Automatic Class Selection ADCCP: Advanced Data Communication Control ACS: Automatic Contrast Selection Procedures (Communication) ACSE: Association Control Service Element The method used in International Organization for ADD: Adapter Device Driver Standardization's open systems interconnection (OSI) for ADD: Automatic Document Detection establishing a call between two applications. ADE: Application Data Export ACSI: American Customer Satisfaction Index (Databases) (Oracle) ACSM: Application Centric Storage Management ADF: Adapter Description File (Software) File name extension ACSS: Aural Cascading Style Sheets ADF: Automatic Document Feeder ACT: Application Compatibility Toolkit Scanner device (Hardware) (Software) (Microsoft) ADF: Automatically