题目内容

【单选题】 The( )is a nonstorage I/O device.

A. keyboard
B. monitor
C. printer
D. all of the above

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【单选题】 A( ) is an optical storage device.

A. CD-ROM
B. CD-R
CD-RW
D. all of the above

【单选题】 A( ) bus connects the CPU and memory.

A. data
B. address
C. control
D. all of the above

【单选题】 If the word size is 2 bytes, a data bus with ( )wires is needed.

A. 2
B. 4
C. 8
D. 16

【单选题】 If the memory has 2的32次幂 words, the address bus needs to have ( )wires.

A. 8
B. 16
C. 32
D. 64