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    Question

    Which register holds the data to be written to or read

    from memory?
    A PC Correct Answer Incorrect Answer
    B MAR Correct Answer Incorrect Answer
    C IR Correct Answer Incorrect Answer
    D MDR Correct Answer Incorrect Answer
    E CU Correct Answer Incorrect Answer

    Solution

    Memory Data Register (MDR) holds the data that is being transferred to or from memory.

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