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How the Computer Computes
At its simplest, a computer is a device that manipulates information, sometimes also called "data". Information can and does take many forms. You can see these different forms every time you use your computer. The words you are reading right now, the signals from the keys you press on your keyboard, the files you load on your hard disk--all are different types of information that your computer manipulates.
This section takes a look at some of the basics of how computers function. These are the principles that underly everything that happens within the computer.