Draw and explain process state model in detail.
[5 marks]What is Operating System? Explain any four OS services in detail.
[5 marks]What is PCB? Explain it with diagram.
[5 marks]Explain Round Robin Scheduling algorithm using following example with Time Quanta 2. Process Arrival Time Burst Time P1 0 P2 1 P3 2 P4 4 1
[2 marks]Explain First Come First Serve Scheduling algorithm using following example. Process Arrival Burst Time Time P1 0 P2 1 P3 5 P4 6
[4 marks]Explain Paging technique in memory management with diagram.
[5 marks]Explain FIFO page replacement strategy using given example. 1, 3, 0, 3, 5, 6,
[3 marks]Explain Fragmentation with its types.
[5 marks]Explain Optimal page replacement strategy using given example. 7, 0, 1, 2, 0, 3, 0, 4, 2, 3, 0, 3, 2,
[3 marks]Explain various file attributes and file operations in brief.
[5 marks]Apply FCFS Disk Scheduling algorithm on following requests. There are total 100 cylinder and head is currently on cylinder number 25. 55, 90, 15, 60, 5, 65, 301
[5 marks]Explain file allocation methods.
[5 marks]Apply SSTF Disk Scheduling algorithm on following requests. There are total 100 cylinder and head is currently on cylinder number 25. 55, 90, 15, 60, 5, 65, 30
[5 marks]Explain Android mobile operating system.
[5 marks]Write a short note on antivirus.
[5 marks]Explain iOS in brief.
[5 marks]Explain file management tool in detail.
[5 marks]