Aps. [1] Application Processing Services

[2] All-Pairs Shortest Path - Problem, in einem ungeordneten Graphen für alle Knoten jeweils den kürzesten Weg zu finden

[3] Arbeitsplatzsystem

[4] American Physics/Physical Society (http://aps.org/)

[5] Array Processor Software (->"IEEE Standard Dictionary")

[6] Auxiliary Program Storage (->"IEEE Standard Dictionary")

[7] ACCUNET Packet Switching Service (->"Lexikon der Text- und Datenkommunikation")

[8] Auto Pilot System {Luftfahrt}

[9] Automated Patent System

[10] Automatic Protection Switch

[11] Alpha Particle Spectrometer

[12] Acquisition Processor Subsystem