What is the name of the high-speed data transfer mechanism that allows specific hardware subsystems to access main system memory independently of the central processing unit?
Explanation:
DMA (Direct Memory Access) allows peripherals like network cards or graphics adapters to read/write directly to system RAM without routing the data through the CPU, reducing processor overhead.
Explanation:
Cache memory temporarily stores data and instructions for quick access during computation. ROM is permanent, hard disk and optical discs are secondary storage.
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