IGNOU MCS-41 - Operating Systems

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IGNOU MCS-41 Code Details

  • University IGNOU (Indira Gandhi National Open University)
  • Title Operating Systems
  • Language(s) English
  • Code MCS-41
  • Subject Computer Application
  • Degree(s) MCA
  • Course Core Courses (CC)

IGNOU MCS-41 English Topics Covered

Block 1 - Introduction to Operating Systems, Process Management

  • Unit 1 - Operating System: An Overview
  • Unit 2 - Processes
  • Unit 3 - Interprocess Communication and Synchronization
  • Unit 4 - Deadlocks

Block 2 - Memory Management, File Management and Security

  • Unit 1 - Memory Management
  • Unit 2 - Virtual Memory
  • Unit 3 - I/O and File Management
  • Unit 4 - Security and Protection

Block 3 - Advanced Topics and Case Studies

  • Unit 1 - Multiprocessor Systems
  • Unit 2 - Distributed Operating Systems
  • Unit 3 - Case Study-Unix
  • Unit 4 - Case Study: Windows 2000
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IGNOU MCS-41 (July 2019 - January 2020) Assignment Questions

  1. Assume you have the following jobs to execute with one processor: Process Processing Time Arrival Time P1 15 00 P2 10 05 P3 07 10 P4 16 12 P5 04 13 Calculate the turnaround time, waiting time, average turnaround time, average waiting time, throughput and processor utilization for the above given set of processes that arrive at a given arrive time shown in the table, with the length of processing time given in milliseconds using FCFS, SJF, RR (with quantum 2) and SRTN scheduling algorithms. Also draw their corresponding Gantt charts.
  2. Using C programming, write a semaphore based solution to Dining Philosopher’s problem and explain the program.
  3. (a) Discuss how fragmentations manifest itself in each of the following types of virtual storage system. Segmentation Paging Combined segmentation and paging (b) Compare direct file with indexed sequential file organization.
  4. (a) Explain take-grant model for operating system security with an example. Also explain the mechanisms of security in WIN 2000 operating system? (b) Explain Bell and La-Padula Model for security and protection. Why is security a critical issue in a distributed OS environment?
  5. Write and explain an algorithm used for ordering of events in a distributed environment. Implement the algorithm with an example and explain?
  6. Discuss in detail the Process management, Memory management, I/O management, File management and Security and Protection for the following Operating Systems: (a) WINDOWS 10 (b) ANDROID Version 9.0 (PIE)
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