The motherboard is the foundation on which your entire computer system is built. It connects each of your computers components together such as sound and graphic cards, hard drive and mouse. It also allows the Central Processing Unit (CPU) to move information it needs from one component to another as it carries out your instructions. This article will show you how a motherboard works. You will also learn how to recognise each of your motherboards components. With this knowledge you will be able to make upgrades to your existing computer as well as troubleshoot any problems you might encounter with your PC now or when you are upgrading your components.