_____ is used to transfer the data directly to main memory without using CPU.
2021
_____ is used to transfer the data directly to main memory without using CPU.
- A.
Device driver
- B.
Input/Output interface
- C.
DMA controller
- D.
Memory Address Register
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Correct answer: C
The correct mechanism for transferring data directly to main memory without using the CPU is the DMA controller.
Device driver / डिवाइस ड्राइवर: This manages communication between the operating system and hardware devices. However, it relies on the CPU to handle data transfer, so it cannot bypass the CPU.
Input/Output interface / इनपुट/आउटपुट इंटरफेस: This facilitates data exchange between the CPU and peripheral devices. It still requires CPU control and cannot perform direct memory transfers.
DMA controller / डी.एम.ए. कंट्रोलर: This allows data to be transferred directly between memory and a peripheral device without CPU intervention. It manages the system bus and handles the data transfer independently.
Memory Address Register / मेमोरी एड्रेस रजिस्टर: This register holds the address of a memory location. It is used during memory access but does not perform data transfer on its own.