Exam-style question
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A processor is reading an instruction from memory. Which pair of registers is used to hold the memory address and the data transferred respectively?.
- A.Program counter and status register
- B.Memory address register and memory buffer register
- C.Current instruction register and program counter
- D.Memory buffer register and memory address register
Model answer
What a good answer should say
- Memory address register and memory buffer register
Explanation
Why this works
The memory address register holds the address of the memory location to be accessed. The memory buffer register temporarily holds the data or instruction being transferred between the processor and memory.
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