- Ampere; a charge of one coulomb passing a point in one second. 2. Abbreviation for Angstrom; one 10-billionth of a meter. (The Angstrom abbreviation is actually the Norwegian capital A for the Norwegian letter aa. It has a diacritical mark, a circle, attached to the tip of the A. We could not create it here.)
See also ampere and angstrom entries.
|A Programming Language|
(APL). A high-level mathematical programming language developed by Kenneth Iverson in the 1960s. It can be run on many different kinds of computers, and is still used for some applications. APL uses its own special characters to represent operations.
A box that enables two or more computers to take turns using a peripheral device such as a printer or scanner. The user turns a switch on the box choosing A, B, etc. to change from one computer to another.
In the U.S. cellular service industry, A-Band cellular is the alternative carrier to the regional Bell operating company's cellular subsidiary
A-key is a secret number issued to a cellular phone that is used in conjunction with a subscriber's shared secret data information for authentication
|A-MIMO: Adaptive Multiple Input Multiple|
Adaptive Multiple Input Multiple Output (A-MIMO or Adaptive MIMO) is a scheme to enhance the MIMO technology by employing adaptive coding and modulation techniques for the purpose of improving channel capacity, diversity, and robustness of wireless communications. In an adaptive MIMO system, the system parameters are jointly optimized to adapt to the changing channel conditions through link adaptation techniques that can track the time-varying characteristics of the wireless channel. The goal is to maximize the resources available in multiple antenna channels by using optimal schemes at all times.
Administrators On-Line. Administrators who police on-line services.
Analog-to-digital converter. A device that converts data from analog to digital form. For example, an audio CD is made by converting analog sound signals into digital data.
|A/D Converter: Analog/Digital Converter|
Analog/Digital Converter (A/D converter or ADC), a hardware device, can read an analog signal (such as voltage) and converts the resulting percentage to a digital value after comparing it to a reference signal. A D/A Converter is just performing the reverse function.
|A2DP: Advanced Audio Distribution Profil|
The Advanced Audio Distribution Profile (A2DP) in Bluetooth specifies the protocols and procedures that define the distribution of high quality audio content, in either mono or stereo on Asynchronous Connectionless Link (ACL) channels.
Auto Answer. Some modems can be set up to accept telephone calls and automatically establish a connection; this ability is called auto answer. When the AA light on the modem goes on, the modem is set to auto answer.
AARON is a screensaver program written by artist Harold Cohen who created the original artistic images. AARON utilizes artificial intelligence to continuously create original paintings on PCs.
|AAS: Adaptive Antenna System|
Adaptive Antenna System (AAS), also called Advanced Antenna System, is a technology to enable the network operators to increase the wireless network capacity. In addition, adaptive antenna systems offer the potential of increased spectrum efficiency, extended range of coverage and higher rate of frequency reuse. Adaptive antenna systems consist of multiple antenna elements at the transmitting and/or receiving side of the communication link, whose signals are processed adaptively in order to exploit the spatial dimension of the mobile radio channel. Depending on whether the processing is performed at the transmitter, receiver, or both ends of the communication link, the adaptive antenna technique is defined as multiple-input single-output (MISO), single-input multiple-output (SIMO), or multiple-input multiple-output (MIMO).
Average Access Time. The average amount of time it takes for a storage peripheral to transfer data to the CPU.
Abandonware refers to software that is no longer being sold or supported by its publisher. Most abandonware is still considered illegal to sell unless the publisher has re-released the software as freeware.
|ABC: Another Bittorrent Client|
Another Bittorrent Client (ABC) is a BitTorrent client based on BitTornado. It supports a queueing system with priority, global and local (per torrent) preference setting for downloading torrent (including upload and download rating limit), 3 upload options to do with completed file, and a system named Upload Rate Manager (URM) to force torrents out of queue if there isn't a pre-set amount of upload activity. There is also an extensive web interface in ABC, allowing for other applications to view and change torrents and preferences remotely.
ABnormal END. From an error message on the IBM 360. Also called a crash or bomb, it is the result of erroneous software logic or hardware failure.
|ABEND: Abnormal End of Task|
Abnormal end of task (ABEND) refers to software crashes or lossage. This term was derived from an error message on the IBM 360.
|ABEND: Absent By Enforced Net Deprivatio|
Absent By Enforced Net Deprivation (ABEND) refers to the sent-in-email subject lines,warning friends and others of forced loss of Internet access (due to moving, network outages, or illness).
Automatic Built-In Self-Test. An automatic self-test performed by an IBM computer to make sure its various components are functioning properly.