29+ Power Supply Unit Definition Computer Background. You can locate the power supply on a system unit by simply finding the input where the power cord is plugged in. Most personal computers can be plugged into standard power supplies are rated in terms of the number of watts they generate.

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Dictionary definition of what a computer power supply means, including related links, information, pictures, and related terms. It sends power through cables to the motherboard and other components. For example a typical computer psu might be 400 watts.

Some power supplies have a manual selector for input voltage, while others automatically adapt to the supply voltage.

A power supply unit (psu) converts ac power from the wall into the right kind of power for the individual parts of your computer. The power supply of a circuit is the part that supplies power to the entire circuit or part of the circuit. Psu are described by their power level. Other kinds of power supplies.