A Central Processing Unit (CPU) continuously performs the Fetch-Decode-Execute cycle to process program instructions.
Describe what happens during the Decode and Execute stages of this cycle.
Decode stage:
Execute stage:
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.