During DMA transfer, DMA controller transfers data ______.
2020
During DMA transfer, DMA controller transfers data ______.
- A.
directly from CPU to Memory
- B.
directly from memory to CPU
- C.
directly between memory and registers
- D.
directly between the I/O module and main memory
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Correct answer: D
DMA (Direct Memory Access) allows data transfer directly between I/O devices and memory without CPU intervention. This mechanism improves system efficiency by freeing the processor from managing data transfers manually.