Many people assume that computer are difficult to understand and difficult to use; however, the first step is understanding and learning to use the computer. The types of hardware that all computer systems use and the types of software that make them run. Like millions of computer users, microcomputers where used to play games, explore the Internet, write papers, build spreadsheets, or create a professional-looking proposal or flyer. You can perform all these application without understanding exactly what goes on behind your computer case or monitor screen.

We the computer user, turn on the machine, load software program, and use that software to accomplish a task without knowing what goes on behind the scenes or the basic functions of the computer components. It is also important to know how to protect the computer.

The complete computer system consists of four parts; hardware, software, people, and data. The term...