Question

For a store operation, what is stored in the MAR?

a) The store instruction

b) The memory address of the store instruction

c) The memory address of the location in memory to which data will be written

d) The data to be stored in memory

Answer 1

Correct Answer: c

Explanation:

The option 'a' is incorrect because the MAR(Memory Address Register) doesn't store the instruction.

The option 'b' is incorrect because the MAR(Memory Address Register) doesn't store the memory address of the store instruction.

The option 'c' is correct because the MAR(Memory Address Register) store the memory address of the location in memory to which data will be written.

The option 'd' is incorrect because the MAR(Memory Address Register) doesn't store the data to be stored in memory.

So, only the option 'c' is correct.