Alternatively referred to as the mb, mainboard, mobo, mobd, backplane board, base board, main circuit board, planar board, system board, or a logic board on Apple computers. The motherboard is a printed circuit board that is the foundation of a computer, located at the bottom of the computer case. It allocates power to the CPU, RAM, and all other computer hardware
components. Most importantly, the motherboard allows hardware components to communicate with one another.
Below is a picture of the ASUS
P5AD2-E motherboard with names of each major component of the
motherboard. Clicking on the image below gives you a larger more
detailed version of the picture below.