Assume that at time 5 no system resources are being used except for the processor and memory. Now consider the following events: At time 5: Pl executes a command to read from disk unit 3.
At time 15: PS's time slice expires
At time 18: P7 executes a command
At time 20: P3 executes a command to read from disk unit 2 to write to disk unit 3.
At time 24: P5 executes a command to write to disk unit 3.
At time 28: P5 is swapped out.
At time 33: An interrupt occurs from disk unit 2: P3's read is complete.
At time 36. An interrupt occurs from disk unit 3: PI's read is complete.
At time 38: PS terminates
At time 40: An interrupt occurs from
At time 44: P5 is swapped back in. disk unit 3: PS's write is complete.
At time 48: An interrupt occurs from disk unit 3: P7's write is complete.

Required:
For each time 22, 37, and 47, identify which state cach process is in. If a process is blocked, further identify the event on which is it blocked.