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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

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9. software is a category of system software that includes programs designed to optimize your computer’s performance, protect data, and facilitate communication. ( )

A、　Zip

B、　Utility

C、　Compression

D、　Usability

答案：B

计算机期末复习练习2

149.Circuitry for Ethernet or Wi-Fi networking is incorporated into the_of most personal computers.

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1.Installed on the original IBM PCs, used a command-line interface that simply displayed a “prompt” such as C:\ on the screen and waited for users to type commands. ( )

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28.Installed on the original IBM PCs, used a command-line interface that simply displayed a “prompt” such as C:\ on the screen and waited for users to type commands. ( )

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123.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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14.Programs that add functionality to other programs, such as browsers, are referred to as . ( )

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12.Most antivirus software runs . ( )

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

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9. software is a category of system software that includes programs designed to optimize your computer’s performance, protect data, and facilitate communication. ( )

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27.The screen shown in the figure above displays a( ) interface, which simply displays a “prompt” and waits for users to type commands. ( )

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26.File shrinks the size of a file so it requires less storage space. ( )

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单选题

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计算机期末复习练习2

9. software is a category of system software that includes programs designed to optimize your computer’s performance, protect data, and facilitate communication. ( )

A、　Zip

B、　Utility

C、　Compression

D、　Usability

答案：B

相关题目

149.Circuitry for Ethernet or Wi-Fi networking is incorporated into the_of most personal computers.

A. 　 modem

B. 　 motherboard

C. 　 RAM

D. 　 ROM

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1.Installed on the original IBM PCs, used a command-line interface that simply displayed a “prompt” such as C:\ on the screen and waited for users to type commands. ( )

A. 　Linux

B. 　DOS

C. 　Unix

D. 　HTML

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28.Installed on the original IBM PCs, used a command-line interface that simply displayed a “prompt” such as C:\ on the screen and waited for users to type commands. ( )

A. 　Linux

B. 　DOS

C. 　Unix

D. 　HTML

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

A. 　editing

B. 　number

C. 　locked

D. 　docked

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14.Programs that add functionality to other programs, such as browsers, are referred to as . ( )

A. 　add-ins

B. 　plug-ins

C. 　peripherals

D. 　applications

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12.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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121.A( )_produces an image by manipulating light within a layer of liquid crystal cells.( )

A. 　LCD

B. 　LED

C. 　CRT

D. 　plasma screen

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9. software is a category of system software that includes programs designed to optimize your computer’s performance, protect data, and facilitate communication. ( )

A. 　Zip

B. 　Utility

C. 　Compression

D. 　Usability

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27.The screen shown in the figure above displays a( ) interface, which simply displays a “prompt” and waits for users to type commands. ( )

A. 　command-line

B. 　operator-input

C. 　user-input

D. 　operator-command

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26.File shrinks the size of a file so it requires less storage space. ( )