- audio generator
- audio line
- audio output
- audio segment
- audio synthesis
- audio tape
- audit area
- audit list
- auditable
- augends
- augment
- augmentability
- augmented
- augmented monoid
- aural
- authentication algorithm
- authentication code
- authentication token
- author
- authoring language
- authoring system
- authority
- authorization
- authorization credentials
- authorization list
- authorized environment
- authorized library
- authorized receiver
- authorized user
- authorizing tool
- auto dial
- auto indent
- auto mechanics
- auto retract
- auto save
- auto-alarm
- auto-alert
- auto-correction
- auto-decrement
- auto-poll
- auto-projection
- Auto-Run
- auto-saving
- auto-skip
- auto-tab
- auto-trace
- auto-transformer
- auto-underscore
- auto-verify
- autoanswer
- autocorrelation
- autodyne
- automate
- automated office
- automated testing
- automatic activation
- automatic bias
- automatic calling
- atypical
- audibility
- audible
- audible alarm
- audio file
- audio frequency
- audio mixer
- audio mixing
- audio processing
- audio stream
- audit events
- audit printer
- audit procedure
- audit roll
- audit window
- augmented complex
- augmented matrix
- augmenter
- authentication
- authentication exchange
- authentication information
- authenticator
- authoring platform
- authoring program
- authority checking
- authority credentials
- authorization code
- authorization message
- authorized command
- authorized path
- authorized program
- authorized state
- authorizing system
- auto ignition
- auto removal
- auto scroll
- auto-advance
- auto-answer
- auto-boot
- auto-call
- auto-code
- auto-correlator