43.The system unit contains storage devices, a power supply, and the computer’s main circuit board, called a ____. ( )
A. any of the above
B. motherboard
C. mainboard
D. system board
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102.A( ) ____ is a company that offers Internet access to individuals and businesses. ( )
A. NSP
B. DSP
C. ISP
D. ASP
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2.Digital audio is music, speech, and other sounds represented in ____ format for use in digital devices. ( )
A. analog
B. both a. and b.
C. neither a. nor b.
D. binary
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111,Software applies ____, also called algorithms(算法), to process data. ( )
A. procedures
B. objects
C. arithmetic
D. rules
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23.Animated ____ are essentially a series of bitmap images displayed in sequence to achieve animation effects. ( )
A. BIFs
B. BITs
C. GITs
D. GIFs
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42.Screen brightness can be measured as ____. ( )
A. contrast ratio
B. either a. or b.
C. luminance
D. neither a. nor b.
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88.A typically connects personal computers within a very limited geographical area, usually within a single building. ( )
A. BAN
B. WAN
C. NAN
D. LAN
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36.In the figure below, the line labeled #1 is pointing to the ____. ( )
A. USB display port
B. DVI display port
C. HDMI display port
D. VGA display port
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80.Digital audio is stored in a variety of file types, including all of these EXCEPT: ____. ( )
A. WAV
B. M4P
C. MP4
D. MP3
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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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