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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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39.The quality or sharpness of printed images and text depends on the printer' s span-the density of dots that create an image.

A、正确

B、错误

答案：B

计算机期末复习练习2

8.Software applies , also called algorithms(算法), to process data. ( )

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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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108.The primary purpose of software—your computer’s operating system, device drivers, and utilities—is to help the computer carry out its basic operating function. ( )

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35.Few PC display devices have the capability to display millions of colors;most,however,display thousands of colors.

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140. Installed on the original IBM PCs, used a command-line interface that simply displayed a "prompt” such as

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54.A(n) computer program forms the software that sets up a computer to do a specific task.

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50. Some scanners have optical character
recognition ability, which converts the letters and symbols on a page into analog data that can be edited using word processing software.

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71.A is basically a wireless local area network that provides access to guests using notebook computers, PDAs, or other mobile devices. ( )

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4. software helps a business keep track of the money flowing into and out of various accounts. ( )

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11.Contrast ratio is the difference between the luminance of white and black pixels. ( )

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计算机期末复习练习2

39.The quality or sharpness of printed images and text depends on the printer' s span-the density of dots that create an image.

A、正确

B、错误

答案：B

相关题目

8.Software applies , also called algorithms(算法), to process data. ( )

A. 　procedures

B. 　objects

C. 　rules

D. 　arithmetic

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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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108.The primary purpose of software—your computer’s operating system, device drivers, and utilities—is to help the computer carry out its basic operating function. ( )

A. 　database

B. 　system

C. 　application

D. 　productivity

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35.Few PC display devices have the capability to display millions of colors;most,however,display thousands of colors.

A. 正确

B. 错误

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140. Installed on the original IBM PCs, used a command-line interface that simply displayed a "prompt” such as

A. 　Linux

B. 　DOS

C. 　Unix

D. 　HTML

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54.A(n) computer program forms the software that sets up a computer to do a specific task.

A. 正确

B. 错误

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50. Some scanners have optical character
recognition ability, which converts the letters and symbols on a page into analog data that can be edited using word processing software.

A. 正确

B. 错误

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71.A is basically a wireless local area network that provides access to guests using notebook computers, PDAs, or other mobile devices. ( )

A. 　Wi-Fi hotspot

B. 　Bluetooth Center

C. 　WAP

D. 　LAN

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4. software helps a business keep track of the money flowing into and out of various accounts. ( )

A. 　Accounting

B. 　Presentation