Computer Science · Operating Systems
Which of the following functions is performed by Direct Memory Access (DMA) in a computer system?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Allows direct data transfer between an I/O device and CPU independent of main memory.
- 2Allows direct data transfer between an I/O storage unit and main memory independent of the CPU.✓
- 3Allows data transfer between a storage unit and main memory strictly under CPU execution control.
- 4Allows data transfer between CPU registers and main memory independent of I/O units.
Correct answer
Allows direct data transfer between an I/O storage unit and main memory independent of the CPU.
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