Practice Demonstrate The Use Of Dma Transfer (28.2.2) - Lecture – 35 - Computer Organisation and Architecture

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6 sample questions

Question 1.
What does DMA stand for?
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Consider what the acronym represents.
Question 2.
What role does the DMA controller play?
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Think about the components involved in data transfer.
3Question 3.
What is the primary purpose of DMA in a computer system?
- To manage CPU tasks
- To enhance data transfer efficiency
- To provide more CPU cycles
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Reflect on how data moves without CPU interference.
4Question 4.
True or False: DMA requires CPU action for each data transfer.
- True
- False
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Consider how DMA and CPU roles differ.
Question 5.
Calculate the time it would take for a DMA transfer of 1 MB of data given a transfer rate of 500 MB/s. Discuss how resources are managed during this time.
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Remember the formula: Time = Data Size / Transfer Rate.
Question 6.
Consider a scenario where multiple devices are using DMA simultaneously. How does the system manage bus control and prevent conflicts?
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Think about how a system prioritizes tasks in a crowded environment.

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