Power Supply
What does Power Supply ?
Power Supply is an electrical device that supplies electric power to an electric load. A Power Supply is also know as a power supply unit, power brick or power adapter.
Below is a list of parts you may find on the back of the power supply.
A connection for the power cord to the computer.
A fan opening to draw air out of the power supply.
A red switch to change the power supply voltage.
A rocker switch to turn the power supply on and off.