FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -Abbreviated as PS or P/S, a power supply or PSU (power supply unit) is a hardware component of a computer that supplies all other components with power.

Detailed explanation-2: -A Power Supply Unit (PSU is an internal IT hardware component. Despite the name, Power Supply Units (PSU) do not supply systems with power-instead they convert it.

Detailed explanation-3: -A power supply is an electrical device that supplies electric power to an electrical load. The main purpose of a power supply is to convert electric current from a source to the correct voltage, current, and frequency to power the load.

Detailed explanation-4: -For example, AC adapter is commonly used as a power supply device. Power supplies built into electronic equipment are also called AC/DC power supplies or switched-mode power supplies. Some power supply circuits are known as DC/DC power supplies to convert an unstable DC into a stabilized DC.