Subject
Computer Science
Topic
Computer Hardware
Which I/O data transfer method allows an I/O device to transfer data directly to and from main memory without involving the CPU?
Which I/O data transfer method allows an I/O device to transfer data directly to and from main memory without involving the CPU?
a)
Programmed I/O (Polling)b)
Interrupt-driven I/Oc)
Direct Memory Access (DMA)d)
Memory-mapped I/OExplanation
DMA is designed to handle bulk data transfers efficiently. A special DMA controller takes over the system bus from the CPU to manage the transfer. This frees up the CPU to perform other tasks, significantly improving system performance.Related questions
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