What is the function of the CPU following the commencement of a DMA transfer?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. It is free to perform other tasks while the transfer is handled by the DMA controller.
In Direct Memory Access (DMA) transfers, the CPU is free to perform other tasks once the transfer is initiated. The DMA controller handles the data transfer between the I/O device and the system memory, bypassing the CPU for the actual transfer process. This allows the CPU to focus on other operations, improving system efficiency and multitasking.The CPU does not actively manage each byte transferred in DMA; the DMA controller takes care of that.