计算机科学引论前六章答案

Chapter 1

Crssword Puzzle

1.people

2.enduser

3.procedures

4.documentfile

5.devicedriver

6.databasefile

7.operationsystem

8.hardware

9.Internet

10.modem

11.software

rmation

13.data

14.tablet PC

Multiple Choice

1. b

2. b

3. a

4. b

5. d

6. d

7. a

8. c

9. d

10.d

Open-ended

1.An information system has five parts:people,procedures,software, hardware and data.

People:Are end users who use computer to make themselves more productive.

Procedures:Specify rules or guidelines for computer operations.

Software:Provides step-by-step instructins for computer hardware.

Hardware:Processes the data to create information.

Data:Consist of unprocessed facts including text,numbers, image and sounds.

People are the most important part of any information system.

2.System software helps the computer manage its own internal resources.It includes three kinds

of programs:operating systems,utilities and device drivers programs.

3.Basic applications are the kinds of programs to be considered computer competent.

Specialized applications are more narrowly focused on specific disciplines and occupations.

Basic applications have some types,such as browser,word processor,spreadsheet ,and so on.

Also specialized applications have many types,some of the best known are graphics,audio and video,multimedia,Web authoring ,and artificial intelligence programs.

4.There are four types of computers:supercomputers,mainframe computers,minicomputers,and

microcomputers.

Supercomputers are the most powerful type of computer.

Mainframe computers occupy specially wired,air-conditioned rooms,they are capable of great processing speeds and data storage.

Minicomputers are refrigeratorsized machines.

Microcomputers are the least powerful,yet the most widely used and fastest-growing,type of computer.

Microcomputers are the most common type of computers.

There are four types of microcomputers:Desktop computers,Notebook computers,Handheld computers and PDA.

5.Connectivity is the capability of you microcomputer to share the information with other

computers.

Wireless revolution dramatically affect connectivity.

A computer network is a communications system connecting two or more computers.

Internet is the largest network in the world.

The Web provides a multimedia interface to the numerous resources available on the Internet. Chapter2

Crossword Puzzle:

1.hits

2.ISP

3.spam

4.applets

5.surf,search engine

6.url

7.ftp

8.carder

9.attachment

10.B2B

11.Browser

12.filter

13.link

14.downloading ,dsl

Multiple Choice:

1. d

2. a

3. c

4. c

5. a

6. a

7. a

8. a

9. d

10.b

Matching:

1----i