A

* Adjusting a television's horizontal and vertical holds
* Adjusting a television's color and hue adjustments
* Adjusting the dwell angle on the spark distributor of an engine
* Adjusting the levels and song layout for recording to audio tape
* Adjusting the tracking on a VCR
* Adjusting a clock's pendulum
* Aiming C-band satellite dish
* Aligning the heads on a 9 track tape drive
* Aligning the heads on a five and a quarter inch floppy drive
* ALGOL programming
* Amiga 500 - Making it boot in PAL mode instead of NTSC
* Analogue radio listening and tuning in?
* AS 400
* AT commands for dial-up modems
* Attaching nose-guard and rails to your skateboard
* Autoexec.bat editing

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