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7. A hard drive has three platters, with 512 tracks per surface. Each track has 256 sectors, with 512 data bytes per sector. It spins

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7. A hard drive has three platters, with 512 tracks per surface. Each track has 256 sectors, with 512 data bytes per sector. It spins at 7200 rpm. The average seek time is 8 ms. The data transfer rate is 10MB/sec, and the controller overhead is 2ms. a. What is the drive capacity? b. What is the average access time for the drive

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