Q20) (Input / Output) The sequential read operation in hard disks involve two operations: Moving the disk
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Q20) (Input / Output) The sequential read operation in hard disks involve two operations: Moving the disk head to the physical location where the data is residing (seek time), and reading the associated blocks continuously (read time). However, while reading the blocks, the data needs to be read in addition to some procesing time (due to error correction etc.). Since the disk continues to move during this time, the next block in sequence slips off the disk head. In order to solve this problem, disk interleving between the sequential sectors is usually employed. Below you can find the characteristics of a Hard disk (these are made-up numbers for the sake of this question).
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