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Computer Science · Oct / Nov 2022 · Paper 11 · Question 2

0478

As printed in the paper

The question as text

Phil has a computer that is designed using the Von Neumann model. The computer has a central processing unit (CPU).

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

Show the answer and mark scheme

  • 2(a)[4]

    One mark for each correct bus (max 2) and one mark for corresponding description of transmission

    Data bus
    …. responsible for transmitting data/instructions
    Control bus
    … responsible for transmitting control signals

  • 2(b)[1]

    Any one from:

    Fetch
    Decode

  • 2(c)[3]

    Any two from:

    To temporarily store data
    It stores the result of interim calculations

    One from:

    Arithmetic logic unit / ALU
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