Q/ An operating system uses SJF scheduling algorithim for Preemptive scheduling of processes. Consider the following set of Processes with their arrival tiwes and cpu burst time Cin m;lliSecond) { priority. Draw the Gantt chart and Calculate the average waiting timelin millisecond) arival time Burst time Priority 7 Process Po 2 P2 2 - . 4- | - 7 -2 P3 P4 3 --4 - -7 - - |

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