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    The machine instruction cycle is a sequence of actions that a central processing unit (CPU) performs to execute each machine code instruction in a program.

    Question
    SLPaper 1

    The machine instruction cycle is a sequence of actions that a central processing unit (CPU) performs to execute each machine code instruction in a program.

    1.

    State where the program is held.

    [1]
    Verified
    Solution

    [1[1[1 mark]

    RAM;

    2.

    State the part of the central processing unit (CPU) that performs the decoding.

    [1]
    Verified
    Solution

    Award [1 max]

    CU/Control Unit;

    3.

    Outline the function of the memory address register (MAR).

    [2]
    Verified
    Solution

    Award [1 max].

    MAR (is a register in the CPU that) stores the address of the (next) instruction/data; to be read from/written to RAM;

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