Consider a system with 3 I/O devices

a.Printer(priority of 2)

b.Disk(priority of 4)

c.Communication line(Priority of 5)

user program begins at t = 0

at t = 10 , disc interrupt occurs, Disc interrupt takes 20 units of time to complete.

at t = 15, printer interrupt occurs. Printer interrupt takes 30 units of time to complete.

at t = 20 communication interrupt occurs. Communication line takes 10 units of time to complete.

Draw a time sequence of multiple interrupts for the above mentioned scenario.