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计算机期末复习练习2

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计算机期末复习练习2

题目内容

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单选题

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68. is usually generated at Web sites and is designed to report your online activities to marketing companies that use the information to send you advertisements. ( )

A、　File Compression

B、　Viruses

C、　Spam

D、　Spyware

答案：D

计算机期末复习练习2

29.Most antivirus software runs . ( )

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112.Some printers are capable of printing on both sides of the paper, a feature referred to as_ printing.( )

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98.Wireless signals can be disrupted by . ( )

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2.The series of instructions that tell a computer how to carry out a processing task is referred to as a(n) computer program. ( )

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28.Some displays can be classified as both input and output devices because they include a touch-sensitive screen that accepts input. ( )

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145._is a wireless network technology that transmits data between devices using radio wave used in coffee shops, airports, and other public places.

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35.Examples of input that a computer can accept include . ( )

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47.In addition to the basic typing keys, desktop and notebook computer keyboards include a( ) keypad to efficiently move the screen-based insertion point. ( )

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44.A( ) produces an image by manipulating light within a layer of liquid crystal cells. ( )

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36.True LED screens have a bright,crisp image and use less power that LCDs.

题目内容

(

单选题

)

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计算机期末复习练习2

68. is usually generated at Web sites and is designed to report your online activities to marketing companies that use the information to send you advertisements. ( )

A、　File Compression

B、　Viruses

C、　Spam

D、　Spyware

答案：D

相关题目

29.Most antivirus software runs . ( )

A. 　continuously even if your computer is turned off

B. 　continuously whenever your computer is turned on

C. 　on scheduled dates

D. 　only when you choose to run it

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112.Some printers are capable of printing on both sides of the paper, a feature referred to as_ printing.( )

A. 　double

B. 　duplex

C. 　multiplex

D. 　high efficiency

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98.Wireless signals can be disrupted by . ( )

A. 　interference from electrical appliances

B. 　hills, valleys, trees

C. 　brick walls and concrete floors

D. 　all of the above

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2.The series of instructions that tell a computer how to carry out a processing task is referred to as a(n) computer program. ( )

A. 正确

B. 错误

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28.Some displays can be classified as both input and output devices because they include a touch-sensitive screen that accepts input. ( )

A. 正确

B. 错误

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145._is a wireless network technology that transmits data between devices using radio wave used in coffee shops, airports, and other public places.

A. 　 Ethernet

B. 　 Wi-Fi

C. 　 Bluetooth

D. 　 The Internet

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35.Examples of input that a computer can accept include . ( )

A. 　all of the above

B. 　instructions from a computer program

C. 　audio signals from a microphone

D. 　temperatures from a thermostat

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47.In addition to the basic typing keys, desktop and notebook computer keyboards include a( ) keypad to efficiently move the screen-based insertion point. ( )

A. 　locked

B. 　number

C. 　editing

D. 　docked

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44.A( ) produces an image by manipulating light within a layer of liquid crystal cells. ( )

A. 　LED

B. 　plasma screen

C. 　LCD

D. 　CRT

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36.True LED screens have a bright,crisp image and use less power that LCDs.