Question

d)Explain the Direct Memory Access and interrupt driven I/O techniques. How are these two techniques different to each other? Also, explain different kinds of Interrupts. 

13 Sep 2024
Answer :
Word Count : 636

Direct Memory Access (DMA) vs. Interrupt-Driven I/O

Direct Memory Access (DMA) and interrupt-driven I/O are two distinct techniques used to manage input and output (I/O) operations in computer systems, each with its own advantages and operational mechanisms.

Direct Memory Access (DMA) is a method that allows peripherals to communicate directly with the system's memory without involving the CPU for every transfer. When a DMA transfer is initiated, the DMA controller (DMA) takes over the system bus and manages the data transfer directly between the I/O device and memory. The key steps in a DMA operation are as follows:

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