What is a Power Supply in a Computer?
A power supply inside the computer is the unit that converts alternate current from your home or business wall outlet (assuming 110v) to direct current. Think of it as a transformer. Laptops work much in the same way. Every power supply is very different though. One may be designed to output 150 watts with only 10 amps and another could be 1,000 watts with 65 amps. Desktop Power supplies are often found in the upper rear of the tower. Most are common to be rectangular (more square) in shape unless it is a specialty power supply that some smaller computers have.
