Computer Science Engineering (CSE) Exam > Computer Science Engineering (CSE) Questions > During DMA transfer, DMA controller takes ove...
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During DMA transfer, DMA controller takes over the buses to manage the transfer
- a)Directly from CPU to memory
- b)Directly from memory to CPU
- c)Indirectly between the I/O device and memory
- d)Directly between the I/O device and memory
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
During DMA transfer, DMA controller takes over the buses to manage the...
During DMA transfer, DMA controller takes over the busses to manage the transfer directly from I/O devices to memory or vice-versa.
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During DMA transfer, DMA controller takes over the buses to manage the...
Direct Memory Access (DMA) Transfer
DMA controller takes over the buses to manage the transfer directly between the I/O device and memory.
Explanation:
What is DMA Transfer?
DMA transfer is a process where the DMA controller takes control of the system buses from the CPU to transfer data directly between an I/O device and memory without involving the CPU in the actual data transfer process.
Direct Transfer Between I/O Device and Memory:
During a DMA transfer, the DMA controller facilitates direct communication between the I/O device and memory. This means that the data is transferred directly from the I/O device to memory or vice versa without passing through the CPU.
Benefits of Direct Transfer:
- Faster Data Transfer: Since the CPU is not involved in the data transfer process, DMA transfers are typically faster compared to traditional I/O transfers.
- Reduced CPU Overhead: By offloading data transfer tasks to the DMA controller, the CPU is free to perform other tasks, leading to improved system performance.
- Efficient Resource Utilization: DMA transfers help in efficient utilization of system resources by allowing simultaneous data transfer and processing tasks.
Conclusion:
In summary, during a DMA transfer, the DMA controller enables direct communication between the I/O device and memory, bypassing the CPU and improving data transfer efficiency and system performance.
DMA controller takes over the buses to manage the transfer directly between the I/O device and memory.
Explanation:
What is DMA Transfer?
DMA transfer is a process where the DMA controller takes control of the system buses from the CPU to transfer data directly between an I/O device and memory without involving the CPU in the actual data transfer process.
Direct Transfer Between I/O Device and Memory:
During a DMA transfer, the DMA controller facilitates direct communication between the I/O device and memory. This means that the data is transferred directly from the I/O device to memory or vice versa without passing through the CPU.
Benefits of Direct Transfer:
- Faster Data Transfer: Since the CPU is not involved in the data transfer process, DMA transfers are typically faster compared to traditional I/O transfers.
- Reduced CPU Overhead: By offloading data transfer tasks to the DMA controller, the CPU is free to perform other tasks, leading to improved system performance.
- Efficient Resource Utilization: DMA transfers help in efficient utilization of system resources by allowing simultaneous data transfer and processing tasks.
Conclusion:
In summary, during a DMA transfer, the DMA controller enables direct communication between the I/O device and memory, bypassing the CPU and improving data transfer efficiency and system performance.
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During DMA transfer, DMA controller takes over the buses to manage the transfera)Directly from CPU to memoryb)Directly from memory to CPUc)Indirectly between the I/O device and memoryd)Directly between the I/O device and memoryCorrect answer is option 'D'. Can you explain this answer? for Computer Science Engineering (CSE) 2025 is part of Computer Science Engineering (CSE) preparation. The Question and answers have been prepared according to the Computer Science Engineering (CSE) exam syllabus. Information about During DMA transfer, DMA controller takes over the buses to manage the transfera)Directly from CPU to memoryb)Directly from memory to CPUc)Indirectly between the I/O device and memoryd)Directly between the I/O device and memoryCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Computer Science Engineering (CSE) 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for During DMA transfer, DMA controller takes over the buses to manage the transfera)Directly from CPU to memoryb)Directly from memory to CPUc)Indirectly between the I/O device and memoryd)Directly between the I/O device and memoryCorrect answer is option 'D'. Can you explain this answer?.
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