The Purpose of the CPU (OCR GCSE Computer Science): Quizzes
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Practise the questions
11 questions from this quiz
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Practise the questions
11 questions from this quiz
What is the purpose of the CPU?
What is the purpose of the CPU?
To carry out processing of data
What cycle does the CPU perform?
What cycle does the CPU perform?
Fetch-decode-execute cycle
How many stages are in the CPU cycle?
How many stages are in the CPU cycle?
Three
In the fetch stage, where is the address from the PC copied to?
In the fetch stage, where is the address from the PC copied to?
MAR
During fetch, where is the instruction from MAR copied to?
During fetch, where is the instruction from MAR copied to?
MDR
Where is the instruction copied from the MDR during fetch?
Where is the instruction copied from the MDR during fetch?
CIR
What happens to the PC during the fetch stage?
What happens to the PC during the fetch stage?
It is incremented
Which component decodes the instruction in the decode stage?
Which component decodes the instruction in the decode stage?
Control unit
Which register contains the instruction that is decoded?
Which register contains the instruction that is decoded?
CIR
Which component may be used for logic or calculations in the execute stage?
Which component may be used for logic or calculations in the execute stage?
ALU
Where is the result stored after execution?
Where is the result stored after execution?
Accumulator