Answer: DMA (Direct Memory Access )
Explanation: DMA (Direct Memory Access ) is the method out the four methods of large data transfer that are Channel I/O,Programmed I/O,Interrupt-driven I/O that is the most suitable for transferring of heavy amount of data
DMA has a major functioning device for the controlling the transfer process known as the DMA controller.This allow the input and output function of the data corresponding to the main memory.
