[1] Analog Digital Converter

[2] American Digital Cellular - USA Mobilfunkstandard (vergl. ->"Lexikon der Text- und Datenkommunikation")

[3] Airborne/Air Digital/Data Computer (->"IEEE Standard Dictionary")

[4] Automatic Data Collection

[5] Adaptive Data Compression (protocol) (Hayes-Modem)

[6] Add with Carry (Assembler-Statement)

[7] Affiliated Data Center.