Power source that is used by all electronics devices, such as a digital camera, a laptop, scanner, etc.
Running your digicam off the wall outlet power rather than by battery power. Usually means purchasing optional AC power adapter.
Alternating Current Power. In the United States, the standard AC Power is single-phase 117VAC/60Hz and is provided from power outlets in the house. 24V AC power can be produced from an AC Adapter.