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
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19.The quality or sharpness of printed images and text depends on the printer’s span—the density of dots that create an image. ( )
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109.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. Unix
B. Linux
C. DOS
D. HTML
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159.A_ is basically a wireless local area network that provides access to guests using notebook com PDAs, or other mobile devices.
A. Wi-Fi hotspot
B. LAN
C. WAP
D. Bluetooth Center
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4.Most computers include a CD drive or DVD drive that uses a magnet to read data stored on plastic-coated CDs and DVDs.} ( )
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54.The purpose of a is to serve data to computers connected to a network. ( )
A. both a. and b.
B. server
C. neither a. nor b.
D. personal computer
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133._software includes templates,master
slides, and themes that can be used to ensure that all presentations
created by an organization,person, or
department have a uniform style.
A. Database
B. Presentation
C. Accounting
D. Desktop publishing
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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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128._software is designed to help you create,
manipulate, and print graphics.
A. Video
B. Presentation
C. Graphics
D. Camera
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55.A computer device uses digital light processing technology to display a computer-generated image on a large-size screen. ( )
A. Video
B. display
C. film
D. Projection
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