A power supply is an important component of a computer. It supplies power to the computer’s internal components and allows it to run. A power supply is usually a box-like object that sits on the floor underneath the computer.

A power supply converts alternating current (AC) from the wall outlet into direct current (DC) for the computer. It also regulates the voltage so that it is consistent and not too high or too low.

If the power supply fails, the computer will not turn on. This can be a serious problem, so it is important to make sure that the …