The document outlines the basic components of a computer and provides a brief description of what each component does:
1. The power supply reduces mains electricity to lower voltages to power components like the hard drive, DVD ROM, and motherboard.
2. The motherboard receives power from the power supply and distributes it to other components like the RAM, CPU, and ports. It is the central component of a computer.
3. The CPU performs computations and processes data input into information output. It contains circuits that execute stored program instructions.