What is it?
The motherboard is like the heart of the computer meaning the computer can't run without it. Every part of the computer sits on or is connected to it.
So what does it actually do?
It's a main circuit that connects all the wires so the electricity can flow. It also means the different components can communicate with each other. The are also lots of slots so that parts can fit around it. This makes the computer more compact. To see another very important computer part, click on the link below.