Exam-style question
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Which statement best describes the data bus?.
- A.It carries addresses of memory locations
- B.It carries data between components
- C.It carries only control signals
- D.It permanently stores the operating system
Model answer
What a good answer should say
- It carries data between components
Explanation
Why this works
The data bus provides a route for data to move between components such as the processor and main memory. Addresses and control signals use different buses.
Common mistake
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