Systems Architecture (AQA GCSE Computer Science): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What is the Fetch-Execute cycle?
What is the Fetch-Execute cycle?
The most important processor process
What are the three stages of the Fetch-Execute cycle in the correct order?
What are the three stages of the Fetch-Execute cycle in the correct order?
Fetch, Decode, Execute
What happens during the Fetch stage?
What happens during the Fetch stage?
Processor retrieves next instruction
Where are computer instructions stored?
Where are computer instructions stored?
At specific memory addresses
During Fetch, where does the processor copy the instruction?
During Fetch, where does the processor copy the instruction?
Into a register
Which component handles the Decode stage?
Which component handles the Decode stage?
The control unit
What happens during the Execute stage?
What happens during the Execute stage?
Processor carries out the instruction
What does the ALU do during the Execute stage?
What does the ALU do during the Execute stage?
Performs mathematical calculations
Can you execute an instruction before decoding it?
Can you execute an instruction before decoding it?
No, decode must happen first
What happens after the Execute stage finishes?
What happens after the Execute stage finishes?
Process starts over with next instruction
How many cycles do modern processors complete per second?
How many cycles do modern processors complete per second?
Millions or billions
How does cache memory help the Fetch-Execute cycle?
How does cache memory help the Fetch-Execute cycle?
Speeds up the fetch stage