What is a Motherboard?

The motherboard serves to connect all of the parts of a computer together. The CPU, memory, hard drives, optical drives, video card,sound card and other ports and expansion cards all connect to the motherboard directly or via cables.
The motherboard is the piece of computer hardware that can be thought of as the "back bone" of the PC.

The Motherboard is Also Known As

mainboard, mobo (abbreviation), MB (abbreviation), system board, logic board

Important Motherboard Facts

Desktop motherboards, cases and power supplies all come in different sizes called form factors. All three must be compatible to work properly together.