Practice Incrementing Program Counter (12.1.3) - Fetch Cycle - Computer Organisation and Architecture

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6 sample questions

Question 1.
What does the Program Counter (PC) do?
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Think about what we need to know before fetching an instruction.
Question 2.
What is the role of the Memory Address Register (MAR)?
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Recall how information flows from the memory to the processor.
3Question 3.
What is the main function of the Program Counter?
- Stacks data
- Holds the next memory address
- Performs calculations
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It is central to the instruction's execution order.
4Question 4.
True or False: The Memory Buffer Register (MBR) holds the address from which data is fetched.
- True
- False
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Reflect on what each register does.
Question 5.
Given an example where the Program Counter has a value of 10, describe the steps taken in the fetch cycle.
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Break down the steps of moving through registers.
Question 6.
Consider a scenario where both read and write operations are triggered on the same clock cycle. Explain how this could potentially cause a data conflict.
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Think about the timing and order of operations.

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