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Cambridge IGCSE Computer Science practice

Paper 1 structured question: Computer architecture

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Attempt questionComputer architecture revisionRevise the key idea

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Computer architecture

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Paper 1Computer Systems1 marks

Understanding CPU architecture and operation.

Description

Components of a CPU

The CPU consists of the ALU, Control Unit, and registers, each playing a vital role in processing instructions.

  1. a

    State the function of the ALU in the CPU.

    Aim for approximately 1 distinct marking point.

    [1]

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Paper 1 structured question: Computer architecture

Paper 1Computer Systems3 marks

Description

Fetch-Decode-Execute Cycle

The FDE cycle is essential for instruction processing in a CPU, involving fetching, decoding, and executing instructions.

  1. a

    Explain the fetch-decode-execute cycle, detailing the role of each component involved.

    Aim for approximately 3 distinct marking points.

    [3]