Motherboard
The motherboard is an important computer component because it’s what everything else connects to! The motherboard is a decently sized circuit board that lets other components communicate. A motherboard has ports that face outside a PC’s case, so you can charge your computer, plug in a monitor, or connect a mouse.
A computer’s motherboard also contains slots for expansions, so you can add additional accessory ports if you wish. The motherboard also stores low-level information like the system time even when the computer is turned off.
Power Supply
True to its name, the power supply powers all other components of the machine. It usually plugs into the motherboard to power the other parts. The power supply connects to either an internal battery (on a laptop) or a plug for an outlet (on a desktop).
