Practice Instruction Register Retention (12.1.2) - Fetch Cycle - Computer Organisation and Architecture

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6 sample questions

Question 1.
What is the function of the Program Counter?
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Think about which component keeps track of instruction locations.
Question 2.
What does the Memory Address Register do?
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Consider what happens to the address before fetching an instruction.
3Question 3.
What register holds the address of the next instruction to be fetched?
- Memory Address Register
- Program Counter
- Instruction Register
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Think about which register acts as a pointer for the CPU.
4Question 4.
True or False: The Memory Buffer Register is used to hold the current instruction being executed.
- True
- False
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Consider what each register is primarily used for.
Question 5.
Explain the complete fetch cycle in detail, including the role of each register.
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Break down the process into each step and identify the purpose of each register.
Question 6.
Discuss the implications of failing to properly increment the Program Counter during the fetch cycle.
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Consider what would happen in a real-world scenario if a program couldn't progress.

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