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Learning objective

Understand the function and significance of an instruction set for a CPU, which includes all commands that the CPU can execute in machine code.

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  • Read the explanation.
  • Check key terms.
  • Practise with linked questions.
Cambridge IGCSE Computer ScienceSubject content

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Quick explanation

Understand the function and significance of an instruction set for a CPU, which includes all commands that the CPU can execute in machine code

  • This point belongs to Computer architecture, especially Computer architecture outcomes.
  • You need to be able to understand the function and significance of an instruction set for a CPU, which includes all commands that the CPU can execute in machine code.
  • The key ideas to know are Define and Describe.
  • Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

DefineDescribe

Why it matters

This objective helps connect Computer architecture outcomes to exam-style questions, flashcards, and revision notes for Computer architecture.

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Paper 1 structured question: Computer architecture

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Description

CPU Instruction Set

The instruction set of a CPU includes all commands that the CPU can execute in machine code, impacting its performance and capabilities.

  1. a

    State the definition of an instruction set.

    Aim for approximately 1 distinct marking point.

    [1]
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