Exam-style question
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What is the purpose of the control bus?.
- A.To carry the address of every instruction only
- B.To carry data values between main memory and the processor
- C.To carry control signals that coordinate communication and operation
- D.To provide a separate memory for instructions and data
Model answer
What a good answer should say
- To carry control signals that coordinate communication and operation
Explanation
Why this works
The control bus carries signals used to coordinate activity between components. It is distinct from the address bus and data bus.
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