Similar to VESA

Atof

Atoi

Atol (programming)

ATRAC CD

ATX

Audio Video Interleave

Automatic acoustic management

GNU Autotools

AVFoundation

AVL tree

Dell Axim

AZERTY

Azure Sphere

B-Method

Free Software Foundation anti-Windows campaigns

Banner (Unix)

BartPE

BASIC Stamp

Beatport

BeBox