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2. A computer system transfers a file of size 256 MB using programmed I/O at a r...
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2. A computer system transfers a file of size 256 MB using programmed I/O at a rate of 8 MB/s, where 1 MB is equal to (10^6) bytes. The same file is transferred using DMA at a rate of 32 MB/s. What is the time saved when DMA is used instead of programmed I/O?
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