Topics include Web Development, Audio, Video, Graphics, Software and Hardware. See also the Music Glossary.

a
- absolute time
- absorption
- AC-3
- Academy curve
- ACID test
- acoustic feedback
- acoustic treatment
- acronym
- active crossover
- adapter
- adaptive differential pulse code modulation
- ADC, A/D converter
- additive color mixing
- additive synthesis
- address
- address code
- ADPCM
- ADR
- ADSR
- Advanced Research Projects Agency
- Advanced Video Coding
- AES3 interface
- AES Standards
- AF
- AFL
- after-fade listen
- AGC
- AIFF
- a-law
- aliasing
- alignment
- alternating current (AC)
- ampere
- amplifier
- amplifier classes
- amplify
- amplitude modulation (AM)
- analog
- analog-to-digital converter
- anchor
- anonymous FTP
- anti-aliasing
- Apache
- apparent power
- applet
- ARPA
- artifact
- ASIO
- aspect ratio
- attenuate
- attenuator pad
- audio cable
- audio coding-3
- audio frequency
- audiographics
- Audio Interchange File Format
- audio stream input/output
- Automatic Dialog Replacement
- automatic gain control
- AVC