DMA

DMA (Direct Memory Access) is a technology that provides a direct data route between permanent storages (disks or drives) and temporary storage.

CPU acts as a mediate ( like a bridge) between temporary and permanent storage if DMA not used, and that subsequently causes much bigger latency and longer access times. DMA resolves the issue by eliminating the role of CPU and speeding up the system considerably by providing direct access between storage mediums.

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