| 1.One of the greatest features of a home （ ） is the ability to share one Internet connection simultaneously over two or more computers. |
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| 2.A （ ） computer is a personal computer whose hardware is capable of using any or all of the following media in a program : audio,text,graphics,video and animation. |
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| 3.The ( ) is a collection of computers connected together by phone lines allows for the global sharing of information. |
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| 4.Most （ ） measures involve data encryption and password. |
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| 5.( ) is not a linear structure. |
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| 6.You might work for an organization whose computer system is spread ( ) a building. |
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| 7.The display screen is the most common ( ) device used to show you what the computer is doing. |
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| 8.Multimedia will become increasingly ( ) throughout every aspect of our lives. |
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| 9.Computer （ ） is a complex consisting of two or more connected computing units， it is used for the purpose of data communication and resource sharing. |
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| 10.The OSI model has ( ) layers. |
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| 11.The best way to describe the concept of playing a guitar is use of ( ). |
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| 12.（ ）：Messages that are sent electronically over a network. |
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| 13.Virus is a ( ). |
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| 14.The （ ） in e-mail messages has affected almost every computer around the world and has caused the damage of up to US$1 billion in North America. |
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| 15.Network software consists of （ ） , or rules by which processes can communicate. |
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| 16.（ ） are those programs that help find the information you are trying to locate on the WWW. |
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| 17.Which of the following expressions is true about the Internet? |
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| 18.A （ ） system placed between the company network and the outside world may limit outside access to the internal network. |
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| 19.With （ ） you can communicate in real time with people all around the world． |
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| 20.The usual address for a Web site is the （ ） page address, although you can enter the address of any page and have that page sent to you. |
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