
What is a Power Supply?
A power supply is very self explanatory. It supplies the power to all the components of the computer. It plugs into the motherboard to supply power to the computer. This is required for the computer because the power supply converts an electrical current from alternating current to direct current, which is the power that is required for the computer. Every power supply has multiple cords connected to the unit. The 24 pin ATX power connector is responsible for providing power to the motherboard. The SATA cable provides power to SATA drives, including hard drives and disk drives. There is also a 4 pin Molex connector, and two PCIe connectors. A more detail description can be found here on power supplies.
What is a Good Power Supply?
Depending on the hardware, a good power supply depends on the wattage. The wattage in a power supply is the maximum amount of power that it can output to the computer. Having large and more expensive components into the computer require more power. This includes a large graphics card or a high level central processor.

Check Out Some Great Power Supply Information
Below is a list of articles that can help find the power supply needed for any computer. There are also deals on several different websites. Check them out.

