Computer software is the programs, applications, games and utilities you use every day to perform the tasks you want to do on your computer. For example Microsoft Windows is an operating system, Adobe Photoshop is an image editing suite and Microsoft Office is a suite of applications to enable you to perform word processing, spreadsheet and database tasks. In most cases there are several options available for most required uses ranging from software designed for novice users right up to professional programs that can be used to create anything you can imagine. What is an operating system and why do I need one? The operating system is the heart of the way you interact with your computer, it provides the bridge between the physical components in your computer and the programs you use to complete tasks on your computer. The operating system allows all software compatible with it to interface and uses the components in the computer. Without an operating system you would not be able to use your computer as no programs, applications, games or...