Briefly describe the three types of processor scheduling.

What is the difference between preemptive and non-preemptive scheduling? There is a currently running process and a new process arrives. And OS moved the currently running process to the Ready state. What kind of scheduling policy is the OSs selection function used for this case.?

You were given five processes with their arrival time and execution time for each in the table.

Develop the schedule (time diagram) for the following methods.

- First-Come-First-Served (FCFS)

- Round Robin

- Shortest Process Next (SPN)

Assume the length of the time quantum, or slice is 1 (q=1)

My name Sandeep Kumar Sah must be on the timing diagram

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\begin{tabular}{|c|c|c|} \hline Process & Arrivaltime & Executiontime \\ \hline ProcessesA & 0 & 4 \\ \hline Processes & 2 & 3 \\ B & & \\ \hline Processes & 3 & 4 \\ C & 5 \\ \hline Processes & 5 & 5 \\ D & & \\ \hline \hline \end{tabular}