McqMate
| Q. |
The method which offers higher speeds of I/O transfers is |
| A. | interrupts |
| B. | memory mapping |
| C. | program-controlled i/o |
| D. | dma |
| Answer» D. dma | |
| Explanation: in dma the i/o devices are directly allowed to interact with the memory without the intervention of the processor and the transfers take place in the form of blocks increasing the speed of operation. | |
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