What were the various optimizations used to minimize the discrepancy between CPU and I/O speeds on early computer systems?
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Answer:An optimization used to minimize the discrepancy between CPU and I/O speeds is spooling.Spooling overlaps the I/O of one job with the computation of other jobs.The spooler for instance could be reading the input of one job while printing the output of a different job
or while executing another job.