7.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. productivity
C. system
D. application
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46.A graphics card typically contains special video memory, which stores screen images as they are processed, and they are displayed. ( )
A. at the same time as
B. before
C. none of the above
D. after
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43.At lower resolutions, text and other objects appear smaller.
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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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152.A network server provides services to computers called _.
A. modes
B. terminals
C. clients
D. customers
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33.The most popular pointing devices for personal computers include mice,trackballs,pointing sticks,trackpads,and joysticks.
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31.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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72.Animated are essentially a series of bitmap images displayed in sequence to achieve animation effects. ( )
A. BIFs
B. BITs
C. GIFs
D. GITs
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51.The graphics card is also called a . ( )
A. either a. or b.
B. neither a. nor b.
C. video card
D. graphics board
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47.The most popular pointing devices for personal computers include mice,trackballs, pointing sticks,trackpads,and joysticks.
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