Operating System Crash Course For Beginners - IGNOU Part - 1

Operating System Basics For Beginners

4.03 (41 reviews)
Operating Systems
2 hours
Jan 2022
last update
regular price

What you will learn

Basics, History, Types and Functions of Operating System

Process States, Context Switching, Thread, Process Scheduling, Scheduling Algorithms, Preemptive, Non-preemptive, FCFS, SJF, SRTN, Round Robin Algorthims

Interprocess Communication and Synchronization, Shared-Memory, Message-Passing, Critical Section, Mutex, Bakery’s Algorithm, Locks, Deadlocks

Memory Management - Overlay, Swapping, Virtual Memory, Demand Paging, Thrashing, Working Set Model, Page Fault Rate, RAID, Security Model


This course is designed for:

  • Students from Universities such as IGNOU

  • People who are interested in learning the basics of Operating System Concepts.

The Course prepares especially those mature students who do not have enough time for studies because of their work schedule. The tutorial covers the important topics, concepts and questions asked in the previous few  IGNOU term-end examination papers.


  1. What is an Operating System? ( Example: DOS, Unix, Windows, Macintosh )

  2. Generations of Operating Systems.

  3. Types Of Operating Systems

    1. Multiprogramming Operating System

    2. Multiprocessing System

    3. Networking Operating System

    4. Distributed Operating System

  4. Functions Of Operating Systems

    1. Process Management

    2. Memory Management

    3. File Management

  1. Processes

    1. Process States

    2. Implementation Of Processes

      1. Context Switching

      2. Threads

    3. Process Scheduling

      1. What is a scheduler?

      2. Process Life-Cycle

      3. Types of Schedulers

        1. Long Term Scheduler

        2. Short Term Scheduler

        3. Medium Term Scheduler.

    4. Scheduling Algorithms ( * Solving problems )

      1. Preemptive scheduling

      2. Non–Preemptive scheduling

      3. First Come First Serve (FCFS)

      4. Shortest Job First (SJF)

      5. Round Robin (RR)

      6. Shortest Remaining Time Next (SRTN)

      7. Priority Based Scheduling or Event-Driven (ED) Scheduling

  2. Interprocess Communication and Synchronization

    1. Interprocess Communication

      1. Shared-Memory System

      2. Message-Passing System

    2. Interprocess Synchronization

      1. Critical Sections: The Mutex Solution

        1. Mutexes: Mutual Exclusion

        2. Bakery’s Algorithm

  3. Classical Problems in Concurrent Programming

    1. Producers/Consumers Problem

  4. Locks

  5. DeadLocks

    1. Characterization of a Deadlock

      1. Mutual Exclusion Condition

      2. Hold and Wait Condition

      3. No-Preemptive Condition

      4. Circular Wait Condition

  6. Memory Management

    1. Memory Management Techniques

      1. Overlays

      2. Swapping

    2. Paging

    3. Virtual Memory

      1. What is a virtual memory

      2. Demand Paging

      3. Page Replacement Policies ( * Solve Problems )

        1. First In First Out (FIFO)

        2. Least Recently Used (LRU)

        3. Optimal Algorithm (OPT)

      4. Thrashing

        1. What is thrashing

        2. Ways to avoid thrashing

          1. Working-Set Model

          2. Page-Fault Rate

    4. I/O File management

      1. RAID

    5. Security and Protection

      1. Security Models

        1. Bell and La-padula model


Operating System Crash Course For Beginners - IGNOU Part - 1 - Screenshot_01Operating System Crash Course For Beginners - IGNOU Part - 1 - Screenshot_02Operating System Crash Course For Beginners - IGNOU Part - 1 - Screenshot_03Operating System Crash Course For Beginners - IGNOU Part - 1 - Screenshot_04



Introduction - What is Operating System?
Generations Of Operating Systems
Types Of Operating Systems
Functions Of Operating Systems


What is a Process ? , States of a Process
Implementation of Process - Context Switching
Implementation of Process - Threads

Process Scheduling

Process Scheduling
Process Life Cycle - Long Term, Short Term , and Medium term Scheduler

Scheduling Algorithms

Scheduling Algorithms
Preemptive and Non-Preemptive Scheduling
First Come First Serve - Scheduling Algorithm - ( Non Preemptive )
Shortest Job First - Scheduling Algorithm ( Non Preemptive )
Round Robin - Scheduling Algorithm ( Preemptive Scheduling )
Shortest Remaining Time - Scheduling Algorithm ( Preemptive )

Interprocess Communication and Synchronisation

IPC In a Distributed System - Shared Memory, Message Passing methods
Interprocess Synchronisation and Critical Section Problem
Bakery's Algorithm - Solving Critical Section Problem

Classical Problem In Concurrent Programming

Producer and Consumer Problem

Locks and Deadlocks

Lock Variable - Synchronisation Mechanism
Deadlock and Characteristics of a Deadlock


Memory and Types Of Memory
Memory Management Techniques - Overlay and Swapping
Virtual Memory
Demand Paging
Techniques to avoid Thrashing - Working Set model
Techniques to avoid Thrashing - Page Fault Frequency

File Management

RAID - Redundant Array Of Independent Disks - Raid 0, Raid 1, Raid 3, Raid 10

Security And Protection

Bell LaPadula Security Model


April 7, 2022
Strange, but I loved the use of the lined paper, lol! I will repeat this course. But he makes it much easier to understand. It would have helped if he had given real world examples. Not everyone is at this level. Some of us can barely turn on a pc. This instructor would b e great at teaching a course like that! How to use a pc. From turning it on to deleting cache and why...to defraging the disk drive. His English is easily understood by natives. THAT IS A PLUS! Many have accents so thick it is not worth the course even if the content is great. I would like to know more about his other courses and willlook into that later.
January 17, 2022
Amazing course Imran. Really useful for students who want to study in short span. Well organised syllabus even for international students like me
January 16, 2022
Brilliant Course. This course does its magic in explaining the most important concepts of Operating System. It's pretty useful to help last minute preparation for exams.
January 15, 2022
Excellent course especially for mature students, who have a busy schedule. All important topics are covered.



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