计算机科学英语文选 上PDF电子书下载

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CONTENTS 1

1．What can a computer do? 1

2．Computers(Ⅰ)a dialogue 4

3．Computers(Ⅱ)a dialogue 8

4．Digital computers a dialogue 12

5．Analogue computers 16

6．Basic functional units of a computer 20

7．The binary system 23

8．Instructions 26

9．Logic circuits 30

10．Input-output units 33

11．Memory units 36

12．Arithmetic units 40

13．Control units 43

14．Software 46

15．The concept of a program 50

16．Arithmetic operations(Ⅰ) 54

17．Arithmetic operations(Ⅱ) 58

18．Loading 61

19．Branching without looping 64

20．A Typical subroutine 68

21．Punched card equipment 72

22．Non-impact printing 75

23．Visual display output 79

24．Programming languages 83

25．Fortran,algol and cobol 86

26．Programming s upstart language:APL 90

27．Operating systems(OS)provide automatic systems control 94

28．A Square-summing,high-speed multiplier 97

29．The role of small computers(Ⅰ) 101

30．The role of small computers(Ⅱ) 105

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