Consider a uniprocessor computer system that has 2 processes and both of them alternate 10ms CPU bursts with 90ms IN/OUT bursts.

Consider a uniprocessor computer system that has 2 processes and both of them alternate 10ms CPU bursts with 90ms IN/OUT bursts. Both the processes were created at nearly the same time and the IN/OUT of both the processes can proceed in parallel. For this system the scheduling strategies that will result in the least CPU utilization (over a long period of time) is