The method which offers higher speeds of I/O transfers is
A. Interrupts
B. Memory mapping
C. Program-controlled I/O
D. DMA
Answer:A
The method which offers higher speeds of I/O transfers is
A. Interrupts B. Memory mapping C. Program-controlled I/O D. DMA
Explanation: In DMA the I/O devices are directly allowed to interact with the memory with out the intervention of the processor and the transfres take place in the form of blocks increasing the speed of operaion.