题目内容

An 8-bit microprocessor has essentially ()

A. 8-bit ALU
B. 8-bit Accumulator
C. Most registers are 8-bit registers
D. all of these candidates

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An embedded microcontroller usually means ()

A microcontroller for the embedded system
B. microcontroller with embedded processor
C. A microcontroller with external memories storing the embedded software
D. microcontroller with all necessary resources available on-chip.

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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

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

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

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An 8-bit microprocessor has essentially ()

A. 8-bit ALU B. 8-bit Accumulator C. Most registers are 8-bit registers D. all of these candidates

An embedded microcontroller usually means ()

Which of the following is output device?()

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

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

A. 8-bit ALU
B. 8-bit Accumulator
C. Most registers are 8-bit registers
D. all of these candidates