A computer power supply converts AC into multiple DC voltages. For example, 12 volts is commonly used for drives, while 3.3v and 5v are used by the chips and other motherboard components.
A power supply for electronic devices. Also called an "AC adapter" or "charger," power adapters plug into a wall outlet and convert AC to a single DC voltage. Computers use multiple DC voltages ...
The PC power supply has been a standard ... But since there is an almost limitless supply of them it’s not worth breaking one unless you need the parts, so what can you do with an intact one?