Hardware

1 Typical PC hardware

• • 1.1 Motherboard
  • 1.2 Power supply
  • 1.3 Storage controllers
  • 1.4 Video display controller
  • 1.5 Removable media devices
  • 1.6 Internal storage
  • 1.7 Sound card
  • 1.8 Networking
  • 1.9 Other peripherals
    • 1.9.1 Input
    • 1.9.2 Output
• 2 See also
• 3 Internet

Motherboard

Main article: Motherboard

The motherboard is the "heart" of the computer, through which all other components interface.

• Central processing unit (CPU) - Performs most of the calculations which enable a computer to function, sometimes referred to as the "brain" of the computer.
  • Computer fan - Used to lower the temperature of the computer; a fan is almost always attached to the CPU, and the computer case will generally have several fans to maintain a constant airflow. Liquid cooling can also be used to cool a computer, though it focuses more on individual parts rather than the overall temperature inside the chassis.
• Random Access Memory (RAM) - Fast-access memory that is cleared when the computer is powered-down. RAM attaches directly to the motherboard, and is used to store programs that are currently running.
• Firmware is loaded from the Read only memory ROM run from the Basic Input-Output System (BIOS) or in newer systems Extensible Firmware Interface (EFI) compliant

For more Visit: http://en.wikipedia.org