McGraw-Hill/Irwin Copyright © 2007 by The McGraw-Hill Companies, Inc. All rights reserved.

(Information Technology)

1-2

1-3

1-4

(Supercomputer)

(Mainframe computer)

(Minicomputer)

(Microcomputers)

1-5

(Desktop)

(Notebook)(Laptop)

(Tablet PC)

(Palm) (Handheld)

1-6

1.

(People)

2.

(Software)

3.

(Hardware)

4. (Data)

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11

&

&

1-

12

IT

1-

13

IT

1-

14

(System Software)

(Application Software)

1-

15

4

(System Unit)

/ (Input/Output)

(Secondary Storage)

(Communication)

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18

1-

19

(Microprocessor)

(Memory)

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20

/

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21

( )

1-

22

“ ”

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23

“ ”

“ ”

(Document files)

(Worksheet files)

(Database files)

(Presentation files) 1-

24

1-

29

(A)

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30

(B)

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31

(C)

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32