Quick Search
- A/D - Analog to Digital
- A/V - Audio/Visual
- AAC - Advanced Audio Coding
- AARP - AppleTalk Address Resolution Protocol
- ABBH - Average Bouncing Busy Hour
- ABC - Atanasoff-Berry Computer
- ABEND - Abnormal End
- AC - Alternating Current
- ACD - Automatic Call Distributor
- ACeS - Asia Cellular Satellite System
- ACK - Acknowledge Character
- ACL - Access Control List
- ACM - Association for Computing Machinery
- ACPI - Advanced Configuration and Power Interface
- ACTA - America's Carriers Telecommunications Association
- ACU - Automatic Calling Unit
- ADB - Apple Desktop Bus
- ADCCP - Advanced Data Communications Control Protocol
- ADO - ActiveX Data Objects
- ADP - Automatic Data Processing
- ADPCM - Adaptive Differential Pulse Code Modulation
- ADS - Alternate Data Streams
- ADSL - Asymmetric Digital Subscriber Line
- ADVEIS - Anti-Virus Dependent Vulnerabilities in E-mail Infrastructure Security
- AES - Asynchronous Event Scheduler
- AFAIK - As Far As I Know
- AGP - Accelerated Graphics Port
- AH - Authentication Header
- AI - Artificial Intelligence
- AIFF and AIFF-C - Audio Interchange File Format
- AIML - Astronomical Instrument Markup Language
- AIX - Advanced Interactive Executive
- ALGOL - Algorithmic Language
- ALU - Arithmetic (and) Logic Unit
- AMANDA - Advanced Maryland Automatic Network Disk Archiver
- AMD - Advanced Micro Devices
- AML - Astronomy Markup Language
- AMP - Advanced Metal Powder
- AMPS - Advanced Mobile Phone System
- AMS - American Mobile Satellite Corporation
- AN - Active Network
- ANSA - Adaptive Network Security Alliance
- ANSI - American National Standards Institute
- AOL - America Online
- APA - All Points Addressable
- API - Application Program(ming) Interface
- APM - Advanced Power Management
- APP - Application Portability Profile
- APWG - Anti-Phishing Working Group
- ARLL - Advanced Run Length Limited
- ARM - Advanced (Acorn) RISC Machine
- ARM - Advanced RISC Machines Ltd
- ARP - Address Resolution Protocol
- ARPA - Advanced Research Projects Agency
- ARQ - Automatic Repeat Request
- ASAP - Activate Secure Authentication Protocol
- ASAP - As Soon As Possible
- ASCII - American Standard Code for Information Interchange
- ASF - ActiveMovie Streaming Format
- ASIC - Application-Specific Integrated Circuit
- ASP - Active Server Pages
- ASP - Application Service Provider
- ASP - Association of Shareware Professionals
- AT - Attention
- ATA - AT Attachment
- ATL - Active (ActiveX) Template Library
- ATM - Asynchronous Transfer Mode
- AUI - Attachment Unit Interface
- AVI - Audio/Video Interleaved format
- AWHFY - Are We Having Fun Yet
- AWT - Abstract Windows Toolkit
A CKInfo Items
Computer Knowledge information pages for terms starting with the letter A.
A/D - Analog to Digital
- CKinfo
- 21 October 2009
- No comments
(A to D)
A general term used to describe the conversion of analog (continuous) data to digital (discrete) data. Most often, an A/D converter is used to convert analog voltages into digital numbers. Perhaps the best example most people have experie...
A/V - Audio/Visual
- CKinfo
- 21 October 2009
- No comments
(A-vee)
Just about anything having to do with audio or visual technology. In the past the term typically had something to do with showing movies or 35mm slides along with sound. More commonly, the term is used for computer displays of both audio a...
AAC - Advanced Audio Coding
- CKinfo
- 22 October 2009
- No comments
(A-A-C)
Advanced Audio Coding is a lossy data compression scheme intended for audio streams. AAC works by discarding signals that do not contribute to the audio or video in a way that can be generally detected, eliminating redundancies in the data...
AARP - AppleTalk Address Resolution Protocol
- CKinfo
- 22 October 2009
- No comments
(arp)
A protocol for mapping the physical hardware address of a computer and an address assigned by an AppleTalk network. Probe packets are sent out to check network nodes in order to assign an ID. If the node is in use the node sending the probe ...
ABBH - Average Bouncing Busy Hour
- CKinfo
- 25 October 2009
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(A-B-B-H)
Traffic load during the peak hour of a day on a switching system, averaged over some period (often a week). ABBH is a method used in both designing networks and assessing network performance. ABBH is typically used for telephone networks.
ABC - Atanasoff-Berry Computer
- CKinfo
- 25 October 2009
- No comments
(A-B-C)
Now recognized as the first programmable digital computer, this one was built in the 1937-1942 timeframe at Iowa State University. It weighed 750 pounds and stored all of 3,000 bits (by burning marks into cards). The computer introduced se...
ABEND - Abnormal End
- CKinfo
- 25 October 2009
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(ab-end)
The name basically says it all. Many operating systems signal the abnormal ending of a process with a signal generally termed an ABEND. The term derives from an IBM System/360 error message. Novell NetWare, in particular, is known for ABE...
AC - Alternating Current
- CKinfo
- 25 October 2009
- No comments
(A-C)
The most common method of transmitting electrical power over power lines around the world. Current reversal at 60 Hertz (50 Hz in some countries) in a sine-wave pattern is most commonly found (although the regular sine-wave is not required f...
ACD - Automatic Call Distributor
- CKinfo
- 25 October 2009
- No comments
(A-C-D)
Switching hardware that distributes incoming calls to modems or individuals as they become available. ACD systems are often used by companies needing to answer lots of calls but not having specific people to answer specific calls (e.g., a ...
ACeS - Asia Cellular Satellite System
- CKinfo
- 25 October 2009
- No comments
(aces)
A cellular and satellite wireless system in use in Asia and the Pacific regions.
More Information
ACeS - ASIA Cellular Satellite
Telephone Organization of Thailand
ACeS Regional Services Company, Ltd.
