计算机专业英语影印版(Computing Essentials 2008)课后答案大全——第一单元Informat

计算机专业英语又名计算机导论Computing Essentials 2008(2008影印版,高等教育出版社,共11个单元(不同版次前就九个单元是一样的))课后习题(包括key terms,Crossword Puzzle,Open Ended )第一单元Chapter 1: Information Technology, The Internet, and You

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1. Explain the five parts of an information system. What part do people play in this system?

a. hardware, and data are procedures.

: A program consists of the step-by-step instructions that tell the

computer how to do its work. The purpose of software is to convert data

(unprocessed facts) into information (processed facts).

: The equipment that processes the data to create information is called hardware.

Focus tables to End of Chapter materials Page 4of 6

are called data.

b. are touched every day by computers and information systems.

What is system software? What kinds of programs are included in system software? a. System software enables the application software to interact with the computer hardware. System software is “background” software that helps the computer manage its own internal resources.

b. It consists of operating systems, utilities, and device drivers.

Define and compare basic and specialized application software. Describe some different types of basic applications. Describe some types of specialized applications.

a. Basic applications, or general-purpose applications, are widely used in nearly all career areas. They are the kinds of programs you have to know to be considered computer competent. One of these basic applications is a browser to navigate, explore, and find information on the Internet.

b. Specialized applications, also known as special-purpose applications, include thousands of other programs that are more narrowly focused on specific

disciplines and occupations. Some of the best known are graphics, audio, video, multimedia, Web authoring, and artificial intelligence programs.

Describe the different types of computers. What is the most common type? What are the types of microcomputers?

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

b. Microcomputers are the most widely used and fastest-growing, type of computer.

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c. There are four types of microcomputers: desktop, notebook, tablet PC, and handheld computers.

What is connectivity? How are the wireless revolution and connectivity related? What is a computer network? What is the Internet? What is the Web?

a. Connectivity is the capability of your microcomputer to share information with other computers.

b. The single most dramatic change in connectivity in the past five years has been the widespread use of mobile or wireless communication devices. These wireless applications are just the beginning of the wireless revolution, a revolution that is expected to dramatically affect the way we communicate and use computer

technology.

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

d. The largest network in the world is the Internet. It is like a giant highway that connects you to millions of other people and organizations located throughout the world.

e. The Web, also known as the World Wide Web or WWW, provides a multimedia interface to the numerous resources available on the Internet

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Topics covered in End of Chapter materials

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