Question: Consider a computing centre (where there are dozens of hard disks). There are 100 jobs and each of them needs 2 seconds CPU time

Consider a computing centre (where there are dozens of hard disks). There

Consider a computing centre (where there are dozens of hard disks). There are 100 jobs and each of them needs 2 seconds CPU time and each spends 1 second in I/O wait (for reading data from one of the hard disks). Compute the optimal overall runtime for the 100 jobs if they run i. ii. uniprogrammed, multiprogrammed. (3 marks) (7 marks) (Subtotal: 20 marks) You can assume that the jobs are independent of each other.

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