AT command set
Pronounced ay-tee command set, the de facto standard language for controlling modems. The AT command set was developed by Hayes and is recognized by virtually all personal computer modems.
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- AT keyboard
An 84-key keyboard introduced with the PC /AT. It was later replaced with the 101-key Enhanced Keyboard.
- AU
Short for audio, a common format for sound files on UNIX machines. It is also the standard audio file format for the Java programming language. AU files generally end with a .au extension . On PCs, two other popular sound formats are WAV and MIDI.
- AUC
Short for Authentication Center and also abbreviated as AC, it is a device located in the HLR (Home Location Register) of a GSM system. The AUC manages the authentication and encryption of information that is associated with individual subscribers by authenticating each SIM card that tries to connect to the GSM network.
- AUDIO_TS
A AUDIO_TS is a UDF file name used for audio directory on a DVD disc volume. Compare with VIDEO_TS.
- AUI
Short for Attachment Unit Interface, the portion of the Ethernet standard that specifies how a cable is to be connected to an Ethernet card. AUI specifies a coaxial cable connected to a transceiver that plugs into a 15-pin socket on the network interface card (NIC).