题目内容

The peripherals of the computer can be classified into two groups: ( ).

A. data Bus, cables
B. pointing device, output devices
C. input devices, output devices
D. control Bus, inner Bus

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Users can type in text and commands using the ( ), which is one of the most important input devices.

A. mouse
B. scanner
C. microphone
D. keyboard

The most useful pointing device is a ( ), which allows the user to point to elements on the screen.

A. digital camera
B. mouse
C. PC camera
D. keyboard

The characteristic of the LCD is ( ).

A. taking up a lot of space
B. taking up little space
C. displaying text and images with greater unclarity
D. A and C

( ) is the control and data processing center of the whole computer system.

A. Memory
B. Motherboard
CPU
D. Bus

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