About This Book
This book is organized into five sections. In the first
four sections， we are going to explain computer sys-
tems to you. Notice that we used the phrase computer
system instead of just computer. That s because any
useful computer setup consists of more than just the
basic computer. It takes many accessories to make the
whole thing work， and we re going to tell you all about
those， too. Our explanations will be given with an eye
towards your actual purchase of a computer system.
At the end of the first four sections， we will recap what
you ve learned and give you some pointers on what to
do when you walk into that computer store to buy a
computer.
The last section of this book is a glossary that con-
tains definitions of words and phrases that will be in-
troduced in the rest of the book. That is not to say
that we won t explain these new terms as we introduce
them， but the glossary will serve as a handy reference
in case you forget what something means. When a new
phrase or word is first introduced in this book， it will
be printed in boldface like this: buzzword.
You have probably heard the term \"buzzword\" many
times before. It refers to a word that has some mysti-
cal meaning， at least as far as computer people are
concerned. Buzzwords really don t have any special
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