Chapter 2. Functions and Components

Going through a long-winded description of what a computer is doesn't seem to make sense when you can see what a computer is, sitting right in front of you. It's a box, a keyboard, and a screen with a headache attached.

Rather than looking at a strictly formal definition of a computer, it's probably more useful to learn what it is with a more practical approach: Examine the machine in front of you. After all, you can see the parts and how they fit together.

If you have a desktop computer or a tower, you've got a big box with an empty slot or two on the front and a bunch of jacks and connectors on the back. A notebook scatters the slots and jacks all around its edges, but in either style of case you get essentially ...

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