57.{ are a type of inexpensive digital camera that remains tethered to a computer and used for videoconferencing, video chatting, and live Web broadcasts. ( )
A. Webpics
B. Browserpics
C. Webcams
D. Browsercams
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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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29.Few PC display devices have the capability to display millions of colors; most, however, display thousands of colors. ( )
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106.Networks are monitored by security personnel and supervised by who set( ) up accounts and passwords for authorized network users. ( )
A. the government
B. network administrators
C. IT managers
D. password administrators
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104.handheld is typically used as an electronic appointment book, address book, calculator, and notepad. ( )
A. mainframe
B. laptop
C. PDA
D. desktop computer
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107. gather, format, and present information in the database, and can typically be printed, published on the Web, or e-mailed to other people. ( )
A. Forms
B. Reports
C. Queries
D. Links
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12.USB flash drives use volatile storage technology, which provides fast access to data, and uses very little power. ( )
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31. software helps a business keep track of the money flowing into and out of various accounts. ( )
A. Accounting
B. Presentation
C. Project management
D. Groupware
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98.Wireless signals can be disrupted by . ( )
A. interference from electrical appliances
B. hills, valleys, trees
C. brick walls and concrete floors
D. all of the above
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26.File shrinks the size of a file so it requires less storage space. ( )
A. defragmenting
B. synthesizing
C. scanning
D. compression
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