The beginners build a computer guide tells you how to build your own computer from component parts. You'll be surprised how easy it is and how much you can save. Building a computer has never been easier. The build process can be completed in a day. This guide will aid you through the process of how to build your own PC step by step. Step One is buying the components. Step Two is how to build your own computer using the parts. Step Three is how to put these components together to build an inexpensive computer.