• AAC (Advanced Audio Coding)
• Abgesicherter Modus
• ABM (Asynchronous Balanced Mode)
• Access Point
• Active Desktop
• Add-ins
• Administrator
• Adressierung
• Adresszeile
• AGP
• AHCI (Advanced Host Controller Interface)
• Analog/Digital
• Android
• Anlage
• ANSI-Lumen
• API (Application Program Interface)
• Apple
• Apps
• Arbeitsspeicher (RAM - Random Access Memory)
• ARM-Architektur
• Artefakte
• ASCII (American Standard Code for Information Interchange)
• ASF (Advanced Streaming Format)
• ASLR
• ASP (Application Service Providing)
• Assembler
• Assistent
• Audible
• Audio-CD (CDDA)
• Auflösung
• Autokorrektur
• Autostart
• AVC / H.264