Operating Systems

Computers nowadays use an Operating System, this is the screen you see when you start up your computer, the main operating system used is Microsoft Windows.
Microsoft Windows is supplied in different versions, here we concentrate on Windows 7, Windows Vista and Windows XP as these are the most commonly used
An Operating system in basic terms allows you to use the computer, it lets you give the computer instructions by using the mouse/keyboard. There are many, many commands "built into" all versions of Windows and this site will help you with allthe ones you need to know.