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2 cards from this section. Quick, good the night before a test.
What does DMA stand for?
Think about the words 'direct', 'memory', and 'access'.
Why is busy waiting inefficient?
Consider what happens to the CPU during this wait.
What is a primary function of the DMA controller?
Think about what the controller's tasks include.
True or False: DMA involvement allows the CPU to run other tasks while data is transferred.
Reflect on the CPU's role in direct memory access.
Design a basic DMA module specification that includes main components and their functions.
Think about the major tasks the DMA controller must handle.
Evaluate a scenario where DMA would be significantly beneficial over interrupt-driven I/O.
What are the implications of CPU load during intensive data tasks?
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