Everything you need to know about power supplies, including types, how to calculate its true power, efficiency, power factor correction (PFC) and more.
As an electrical device, the computer needs power in order for its components to operate properly. The device responsible for supplying power to the computer is the power supply. In a short way, we could say that the main function of the power supply is to convert alternating voltage (a.k.a. AC) which is supplied by the electrical power system into continuous voltage (a.k.a. DC). Read more at HardwareSecrets