题目内容

Which of the following is output device?()

A. keyboard
B. mouse
C. display screen
D. scanner

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() address lines are required to address 2K*8 bit memory.()

A. 11
B. 14
C. 10
D. 16

() register holds the address of the next instruction to be fetched. ( )

A. PC
B. IR
C. MAR
D. MBR

() register holds the actual instruction to be decoded and executed. ( )

A. PC
B. IR
C. MAR
D. MBR

A microcontroller with 64KB of code memory will require a program counter of ( )

A. 8-bit size
B. 16-bit size
C. 32-bit size
D. 64-bit size