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

  • Arithmetic Logic Unit (ALU)
  • Program Counter (PC)
  • Memory Data Register (MDR)

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

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Systems architecture Questions

Practise AQA GCSE Computer Science Systems architecture with exam-style questions for GCSE Computer Science. 42 questions, matched to the AQA GCSE Computer Science (8525) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.

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Systems architecture Questions

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