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3 cards from this section. Quick, good the night before a test.
What does DMA stand for?
Think about how data is moved in a system.
Name one advantage of DMA over programmed I/O.
Consider CPU involvement in data transfers.
What is the primary function of DMA?
Think about what DMA is specifically designed to do.
True or False: DMA requires constant CPU intervention.
Remember the differences between I/O methods.
Design a hypothetical DMA controller for a data-intensive application. What components would you include, and why?
Think about the data flow requirements for your chosen application.
Analyze the trade-offs between using DMA and interrupt-driven I/O in a real-time data acquisition system.
Consider context switching and CPU overhead in your analysis.
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