What is Direct Memory Access (DMA)? Group of answer choices A technique for transferring data between the CPU and memory A technique for transferring data directly between devices and memory A technique for increasing the speed of the CPU A technique for reducing the amount of memory required by a process
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DMA is a method that allows certain hardware subsystems to access main system memory independently of the central processing unit (CPU). Show more…
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Select the correct alternative from the given choices. In which of following I/O techniques, there will be no interrupt? (A) Programmed I/O (B) Interrupt-driven $\mathrm{I} / \mathrm{O}$ (C) DMA (D) Both (B) and (C)
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Select the correct alternative from the given choices. Which of the following DMA transfer modes an interrupt handling mechanisms will enable the highes $\mathrm{I} /$ O bandwidth? (A) Block transfer and polling interrupt (B) Cycle stealing and polling interrupt (C) Block transfer and vectored interrupt (D) Transparent DMA and vectored interrupt
Select the correct alternative from the given choices. Which of the following enables peripherals to pass a signal down the bus to the next device on the bus during polling of the device? (A) Interrupt vectoring (B) Cycle stealing (C) DMA (D) Daisy chain
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