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Computer Science · May / June 2024 · Paper 12 · Question 5

0478

As printed in the paper

The question as text

Instructions are processed by a central processing unit (CPU) in a computer.

Read automatically from the paper; the printed page above is exact.

Show the answer and mark scheme

  • 5(a)[7]

    One mark for each correct term in the correct place:

    address
    memory address register // MAR
    random access memory // RAM
    memory data register // MDR
    data
    current instruction register // CIR
    control unit // CU

  • 5(b)[1]

    A list of (machine code) commands that can be processed by the CPU

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