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What is the main advantage of direct memory access in a computer?

Answer and explanation

Correct answer: Some devices can transfer data to or from main memory without continuous processor involvement

The governing concept is direct memory access, or DMA. A DMA controller allows an input/output device to transfer a block of data directly to or from main memory, while the processor is freed from supervising every byte. The processor may configure the transfer and receive a completion signal, so it is not completely uninvolved. DMA does not make memory non-volatile, encrypt files, or change a monitor into storage.

Related tags

IctDmaMemoryInput OutputBasic Computer Operations (Hardware And Software)Basic Computer Operations Hardware And SoftwareIct (Information & Communication Technology) Skills IIct Information Communication Technology Skills I

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