Introducion To Computers The purpose of this website is to tell you all about the different computer theory. We will be talking about what a computer is to start off with and talking about the different components to a computer. Also we will be telling you about 'binary data' which I will tell what it is later. A quick description of a computer is that its got a switch on button and you will probably have a log in and after that you're in and you can do whatever you want on it, I will tell you on another page more about a computer.