计算机专业英语 新版PDF电子书下载

1 Your Future and Computer Competency 2

1 Your Future and Computer Competency 2

End Users and Computer Competency 3

Microcomputers 4

Four Kinds of Computers 4

Superoomputers 6

Mainframe Computers 6

Minicomputers 6

The Five Parts of an Information System 7

Software 9

Application Software 9

System Software 10

Hardware 11

Input Devices 11

The Sytem Unit 12

Preface to the Instructor 13

Preface 13

Secondary Storage 13

Output Devices 14

Communications Devices 14

Connectlvlty 15

Data 15

A Look at the Future 16

Powerful Software 16

Powerful Hardware 16

Connectivity 17

Changing Times 17

Key Terms 18

Review Questions 19

Discussion Questions and Projects 20

On The Web:Exercises and Explorations 21

Visual Summary 22

2 Basic Applications 24

General-Purpose Appllcations 24

2 Basic Applications 24

Menus 25

Shortcut Keys 25

Tool Bars 25

Help 26

Dialog Boxes 26

Insertion Point 26

Scroll Bars 26

Edit 27

Cut,Copy,and Paste 27

Undo 27

Save and Print 27

Word Processors 28

Word Wrap and the Enter Key 29

Spelling and Grammar Checkers 29

Other Features 29

Spreadsheets 31

Format 31

Formulas and Functions 32

Analysis 32

Other Features 33

Database Managers 34

Locate and Display 35

Sort 35

Data Analysis 35

Other Features 36

Presentation Graphics 36

Content Development Assistance 37

Professional Design 37

Support Materials 37

Other Features 37

Personal Information Managers 38

Communication Organizer 39

Address Book 39

Other Features 39

Calendar 39

Integrated Packages and Software Sultes 40

A Look at the Future 41

Key Terms 42

Review Questions 44

Discussion Questions and Projects 45

On the Web:Exercises and Explorations 47

Visual Summary 48

Graphics Programs 49

3 Aduanced Applications 50

3 Advanced Applications 50

Desktop Publishing 51

Image Editors 51

Illustrations Programs 52

Graphics Suites 52

Multimedia 53

Story Boards 54

Authoring Program 55

Web Publishing 56

Web Site Organization 56

Web Pages 56

HTML Documents 57

Web Authoring Programs 57

Groupware 58

Prolect Management 59

Gantt Charts 60

PERT Charts 60

Artificial Intelllgence and Virtual Reality 61

Robotics 61

Knowledge-Based(Expert)Systems 62

Virtual Reality 64

A Look at the Future 65

Key Terms 65

Review Questions 66

Discussion Questions and Projects 68

Visual Summary 68

On the Web:Exercises and Explorations 69

4 System Software 72

4 System Software 72

Why Leam About System Software? 73

Four Kinds of Programs 74

DOS 76

Advantages 76

Disadvantages 77

Microsoft Windows 78

Windows 78

Windows95 80

Windows98 81

Windows NT 82

Advantages 83

OS/2 83

Macintosh Operating System 84

Disadvantages 84

Advantages 84

Disadvantages 85

Unix 86

Advantages 87

Disadvantages 87

A Look at the Future 88

Key Terms 89

Review Questions 89

Discussion Questions 90

On the Web:Exercises and Explorations 91

Visual Summary 92

5 The Processing Unit 94

The CPU 94

5 Tbe Processing Unit 94

Control Unit 95

The Arithmetic-Logic Unit 95

Regisers 96

Memory 96

Processing Cycle 96

Units of Measure for Capacity 98

The Binary System 98

Binary Coding Schemes 99

The Parity Bit 100

The System Unit 101

System Board 101

Microprocessor Chips 102

Memory Chips 104

System Clock 105

Expansion Slots and Boards 106

Bus Lines 107

Ports 108

A Look at the Future 109

Key Terms 110

Review Questions 111

Discussion Questions and Projects 112

On the Web:Exercises and Explorations 113

Visual Summary 114

6 Input and Output 116

Input:Kryboard Versus Direct Entry 116

6 Input and Output 116

Keyboard Entry 117

Keyboards 117

Terminals 118

Direct Entry 119

Pointing Devices 119

Scanning Devices 121

Voice-Input Devices 122

Outpuy:Monitors,Printers,Plotters,Volce 123

Monitors 123

Standards 124

Cathode-Ray Tubes 124

Flat-Panel Monitors 125

Ink-Jet Printer 126

Laser Printer 126

Printers 126

Dot-Matrix Printer 127

Thermal Printer 128

Piotten 129

Printer Features 129

Pen Plotter 129

Other Printers 129

Direct-Imaging Plotter 130

Electrostatic Plotter 130

Voice-Output Devices 130

Ink-Jet Plotter 130

A Look at the Future 131

Key Terms 132

Review Questions 133

Discussion Questions 134

On the Web:Exercises and Explorations 135

Visual Summary 136

7 Secondary Storage 138

7 Secondary Storage 138

Four Types of Secondary Storage 139

Floppy Disks 140

The Disk Drive 140

How a Disk Drive Works 140

The Parts of a Floppy Disk 141

Taking Care of Floppy Disks 142

Hard Disks 142

Intermal Hard Disk 143

Hard-Disk Cartridges 143

Hard-Disk Packs 144

Performance Enhancements 145

CD-ROM 146

Optical Disks 146

CD-R 147

Erasable Optical Disks 148

DVD 148

Magnetic Tape 149

Magnetic Tape Streamers 149

Magnetic Tape Reels 150

A Look at the Future 151

Key Terms 152

Review Questions 152

Discussion Questions and Projects 153