Have you ever watched an incredible scene in a movie, or seen a drawing that looked so realistic yu thought it was a photograph? Afterward, were you amazed to learn that it was done on a computer? If so you are certainly not alone. we are endlessly surprised by the feats accomplished with the help of computers and marvel at their complexity. For this reason, many people assume that computers must be difficult to understand and difficult t use. Most of us do not realize, how ever that computers are basically simple devices, and all computers have a great deal in common. Most computers from biggest to the smallest operate on the same fundamental principles. They are all fabricated from the same basic types of components, and they all need instructions to make them run.
As a first step toward understanding and learning to use computers, this lesson gives you a peek at these fascinating machines. you will learn about the types of hardware that all computersystems, and the types of software that make them run. you will also see that without a user - some onelike you - a computer system is not really complete.
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