The power of the computer, without this the computer would not turn itself on as it does not have a power source. The Power Supply is often placed in the top right hand corner of the computer, and is connected to the one of the main power cable of the computer. The Power Supply takes a certain voltage of electricity, any less and the computer would not run. The Power Supply also has its own heat sink and fan because it controls the computers power, and it can get very hot.
Power Supply
