Question: a) Explain how a read I/O operation happens in 2 scenarios: with DMA and without DMA. Clearly explain how the I/O device and the CPU

a) Explain how a read I/O operation happens in 2 scenarios: with DMA and without DMA. Clearly explain how the I/O device and the CPU works concurrently in both cases. b) Explain how a write I/O operation happens in 2 scenarios: with DMA and without DMA. Clearly explain how the I/O device and the CPU works concurrently in both cases.

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