1. please describe in deatils,, possilge grant chart or diagram

2. what means/role of I/O burst or clear I/O burst

3. differentiate b/w I/O burst and cpu burst in this questions. or cpu scheduling algorithm.

4. what effect in answer if each process spends 100% doing I/O burst ... explain your answer.

note-----> pleas explain about I/O burst in cpu scheduling... i.e. role,advantage,disadvantages,suitability etc....

12. Consider three processes, all arriving at time zero, with total execution time of 10, 20 and 30 units, respectively. Each process spends the first 20% of execution time doing I/O, the next 70% of time doing computation, and the last 10% of time doing I/O again. The operating system uses a shortest remaining compute time first scheduling algorithm and schedules a new process either when the running process gets blocked on I/0 or when the running process finishes its compute burst. Assume that all I/0 operations can be overlapped as much as possible. For what percentage of time does the CPU remain idle? (a) 0% (b) 10.6% (c) 30.0% (d) 89.4%