《计算机专业英语》求取 ⇩

1You and Computer Competency2

End Users and Computer Competency3

Four Kinds of Computers3

The Five Parts of an Information System5

Software6

Hardware8

Data12

Connectivity12

A Look at the Future:You and Computer Competency13

2Applications Software:Basic Tools20

General-Purpose Applications Packages20

Word Processors22

Spreadsheets24

Database Managers27

Graphics29

Communications31

Integrated Packages and Software Suites33

A Look at the Future34

3Systems Software40

Why Learn About Systems Software?40

Four Kinds of Programs42

DOS:The Personal Computer Standard44

Windows46

Windows NT48

OS/249

Macintosh Operating Systems50

Unix:The“Portable”Operating System52

A Look at the Future54

4The Processing Unit60

The CPU60

Memory61

The Binary System62

The System Unit66

The Four Types of Computer Systems75

A Look at the Future81

5Input and Output88

Input:Keyboard Versus Direct Entry88

Keyboard Entry89

Direct Entry90

Output:Monitors,Printers,Plotters,Voice97

Types of Monitors97

Printers100

Plotters104

Voice-Output Devices105

A Look at the Future106

6Secondary Storage112

Four Kinds of Secondary Storage112

Floppy Disks113

Hard Disks117

Optical Disks120

Magnetic Tape122

A Look at the Future124

7Communications and Connectivity130

Communications and Connectivity131

National Information Highway and internet136

User Connection138

Communications Channels139

Data Transmission141

Network Architecture144

Network Types146

A Look at the Future148

8Files and Databases154

Files154

Database158

DBMS Organization160

Types of Databases162

Database Uses and lssues165

A Look at the Future166