题目内容

( )is not a permanent storage place for information.

A. ROM
B. hard disk
C. RAM
D. CD_ROM

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The smallest unit of storage is ()

A. bit
B. byte
C. kilobyte
D. megabyte

The most common unit of storage is the ()

A. bit
B. byte
C. kilobyte
D. megabyte

Which of the following is the component of CPU?

ALU
B. hard disk
C. memory
D. mouse

Which is an input device as follows ?( )

A. speaker
B. printer.
C. scanner
D. monitor

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