Question: What is the average time to read or write a 512-byte sector for a typical disk rotating at 7200 RPM? The advertised average seek time

What is the average time to read or write a 512-byte sector for a typical disk rotating at 7200 RPM? The advertised average seek time is 8ms, the transfer rate is 20MB/sec, and the controller overhead is 2ms. Assume that the disk is idle so that there is no waiting time.

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