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Q

Medium 2 Marks

Computer Studies Central Processing Unit (CPU)

What is the Memory Address Register (MAR) used for?

A Storing data transferred between memory and the CPU

B Holding the current instruction being executed

C Storing the address of the memory location the CPU wants to read from or write to

D Keeping track of the next instruction address

Explanation

The Memory Address Register (MAR) stores the address of the memory location that the CPU wants to read from or write to during data access operations.

Reference: Computer Studies Textbook , Page 4

Hint

MAR stores an address — not data itself. Where does the CPU need to look?

Explanation

Hint

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