CHAPTER1
1.Explain the five parts of an information system 。What part do people play in this system?
An information system has five parts: people， procedures, software， hardware and data.
读后感高中People： Are end urs who u computer to make themlves more productive.
Procedures： Specify rules or guidelines for computer operations.
Software： Provides step-by—step instructions for computer hardware.
皮肤瘙痒怎么治疗Hardware: Process the data to create information.
Data: Consist of unprocesd facts including text, numbers, image and sounds。
People are the most important part of any information system.
2.What is system software? What kinds of programs are included in system software?
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System software helps the computer manage its own internal resources. It includes three kinds of programs: operating systems， utilities and device drivers programs。
3.Define and compare basic and specialized application software. Describe some different types of basic application software。 Describe some types of specialized applications。
Basic applications are the kinds of programs to be considered computer competent。
Specialized applications are more narrowly focud on specific disciplines and occupations.
Basic applications have some types， such as browr, 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.Describe the different types of computer. What is the most common type？ What are the types of microcomputers？
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 refrigerator sized machines.
Microcomputers are the least powerful, yet the most widely ud 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。
胃酸怎么回事5.What is connectivity? How are the wireless revolution and connectivity related？ What is a computer network? What is the Internet? What is the Web？
Connectivity is the capability of you microcomputer to share the information with other computers.交叉步
妄自菲薄是什么意思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
1.Discuss the us of the Internet. Which activities have you participated in？ Which one do you think is the most popular？
The most common us of the Internet are the following： communicating， shopping, arching， entertainment, education, and so on. I have participated in almost all of them. I think communicating is the most popular.
2.Explain the differences between the two most common types of providers.
The two most common types of providers are National and wireless。
National rvice providers provide access through standard telephone connections。
Wireless rvice providers provide Internet connections for computers with wireless modems and a wide array of wireless devices。
3.昆阳二中What are the basic elements of an e—mail message?
A typical e-mail message has three basic elements： header， message and signature。
4.What is social networking ? Describe the three types if social networking sites。
Social networking is the grouping of individuals into specific groups. There are three basic categories of social networking sites: reuniting， friend-of—a—friend and common interest
Reuniting sites are designed to connect people who have known one another but have lost touch.
Friend-of-a-friend sites are designed to bring together two people who do not know one another but share a common friend。
Common interest sites bring together individuals that share common interests or hobbies。
5.Describe the different types of arch engines. Given an example of the type of arch each engine is best for。职业倦怠量表
