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Systems architecture

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Question 3

Three major components/registers of a Central Processing Unit (CPU) are:

  • Control Unit (CU)
  • Memory Address Register (MAR)
  • Current Instruction Register (CIR)

Describe the function of each of the three components/registers.

[6]
Markscheme

Systems architecture Questions

  1. GCSE
  2. /Computer Science
  3. /Systems architecture

37 exam-style questions on AQA GCSE Computer Science Systems architecture. Each one has a worked solution and a mark scheme showing where the marks go.

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