Question

DMA controllers ____.A) do not utilize an additional, special purpose, processorB) are a nonstandard component in PCs of todayC) can steal memory access cycles from the main CPUD) can access main memory at the same time as the main CPU

Answer 1

Answer:

D) can access main memory at the same time as the main CPU

Explanation:

DMA is short for Direct Memory Access, these controllers allow the device to transfer data directly to and from the memory modules without interfering with CPU processes. Therefore it can access main memory at the same time as the main CPU. Thus freeing up CPU processing power for other tasks while also retrieving the data necessary.