Practice Instruction Units 4 And 5 (6.3.3) - Control Unit - Computer Organisation and Architecture

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6 sample questions

Question 1.
What are the three main steps in an instruction cycle?
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Think of the acronym F.D.E.
Question 2.
What is the role of control signals?
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Consider what controls data flow.
3Question 3.
What are the phases of the instruction cycle?
- Fetch
- Process
- Execute
- Fetch
- Decode
- Execute
- Decode
- Process
- Store
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Remember the acronym F.D.E.
4Question 4.
True or False: Micro-instructions are smaller operations that are part of a macro-instruction.
- True
- False
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Think about the definition of macro versus micro.
Question 5.
Design a simple computing task that requires at least three macro instructions. Outline the control signals needed for execution.
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Think about how each operation can logically lead to the next.
Question 6.
Explore how an unexpected interrupt might influence the control signals during the execution of an instruction.
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Consider real-world scenarios where immediate action is required, impacting ongoing processes.

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