Practice Control Unit Summary (31.3.1) - Memory and Bus Architecture - Computer Organisation and Architecture

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10 questions

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6 sample questions

Question 1.
What does the MAR stand for?
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Think about what register holds the address information.
Question 2.
What does the MDR do?
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Remember its role when discussing memory operations.
3Question 3.
What does the MAR hold?
- Memory Address
- Data Value
- Control Signal
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Think about the role of the address in accessing memory.
4Question 4.
True or False: The MDR is used to store control signals.
- True
- False
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Remember what tasks the MDR is assigned.
Question 5.
Design a CPU model that effectively uses both MAR and MDR and illustrate how an instruction is executed step-by-step in both a single and three-bus architecture.
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Focus on how the instruction moves through the system.
Question 6.
Analyze the efficiency of using control signals in a three-bus architecture compared to a single-bus architecture when executing a large instruction set.
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More signals mean greater complexity; contrast with speed of execution.

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