--- Which of the statement(s) given below is/are correct regarding a real time OS?

Statement (I) is false because a process can only exist in one state at any given time in both real-time and general-purpose operating systems. Process states (ready, running, waiting, terminated) are mutually exclusive. Statement (II) is false because processes in the "wait" state cannot be scheduled by the scheduler; they remain blocked until the event they're waiting for occurs. Only processes in the "ready" state are eligible for scheduling.

Step-by-step Derivation:
Process State Model Analysis:

Statement (I): A process can be present in more than one state at a time

• Process states are: New → Ready → Running → Waiting → Terminated
• At any instant, a process occupies exactly ONE state
• A process cannot be both Running and Waiting simultaneously
• This applies to all OSes, including real-time OS
• Conclusion: FALSE

Statement (II): Processes can be scheduled by the scheduler in their "wait" state

• Waiting/Blocked state: Process is waiting for I/O or event completion
• Scheduler only selects processes from the Ready queue
• Processes in Wait state are not in the ready queue
• They transition to Ready only after the event they wait for completes
• A waiting process cannot be scheduled until it becomes ready
• Conclusion: FALSE

Final Answer: Neither (I) nor (II) is correct → Option A