Practice Role Of The Dma Controller (28.4.1) - Lecture – 35 - Computer Organisation and Architecture

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6 sample questions

Question 1.
What does DMA stand for?
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Think about the role it plays in data transfer.
Question 2.
Name one disadvantage of programmed I/O.
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Consider how it impacts CPU usage during data transfers.
3Question 3.
What is the primary benefit of DMA?
- It makes CPU faster
- It reduces CPU workload during data transfers
- It complicates data transfer processes
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Think about what the main aim of DMA is.
4Question 4.
True or False: DMA operations require CPU intervention during the data transfer.
- True
- False
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Recall how DMA operates compared to traditional methods.
Question 5.
Analyze a scenario where using DMA in a video game console might enhance performance compared to traditional I/O methods.
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Consider the volume of data needing simultaneous processing.
Question 6.
Devise a simple table comparing the scenarios in which DMA is preferable versus less advantageous.
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Break down situations into small data vs. large data transfers.

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