Introduction to Operating Systems

By Prof. Chester Rebeiro   |   IIT Madras
Operating systems (OS) provide the crucial interface between a computer's hardware and the applications that run on it. It allows us to write programs without bothering much about the hardware. It also ensures that the computer's resources such as its CPU, hard disk, and memory, are appropriately utilized. In this course, we dwell into how the OS manages to do all this in an efficient manner. This is an introductory course, for students with prior knowledge of computer organization. The course is based on an OS called xv6, which in many ways is similar to the Linux operating systems.

INTENDED AUDIENCE B.E./Msc (Computer Science)
PRE-REQUISITES Good knowledge of C, Computer Organization and Architecture, x86 Assembly level programming. 

Learners enrolled: 11515


Course Status : Ongoing
Course Type : Core
Duration : 8 weeks
Start Date : 14 Sep 2020
End Date : 06 Nov 2020
Exam Date : 18 Dec 2020
Enrollment Ends : 25 Sep 2020
Category :
  • Computer Science and Engineering
  • Systems
  • Level : Undergraduate


    Week 1 : Introduction
    Week 2 : Memory Management 
    Week 3 : Processes 
    Week 4 : Interrupts and Context Switching
    Week 5 : Scheduling
    Week 6 : Synchronization
    Week 7 : Deadlocks
    Week 8 : Operating System Security


    • ''xv6: a simple, Unix-like teaching operating system", Revision 8, by Russ Cox, Frans Kaashoek, Robert Morris
    • ''Operating System Concepts'', 8th edition, by Adraham Silberschatz, Pert B. Galvin, and Greg Gagne, Wiley-India edition
    • ''Modern Operating Systems'', 3rd edition, by Andrew S. Tanenbaum, PHI Learning Private Limited, New Delhi
    • The xv6 source code is available via git clone git://pdos.csail.mit.edu/xv6/xv6.git


    Prof. Chester Rebeiro

    IIT Madras
    Chester Rebeiro is an Assistant Professor at IIT Madras. He completed his PhD from IIT Kharagpur and a post-doc from Columbia University. His research interests are in cryptography, system security, especially hardware and operating system security.
    (webpage : http://www.cse.iitm.ac.in/~chester/)


    The course is free to enroll and learn from. But if you want a certificate, you have to register and write the proctored exam conducted by us in person at any of the designated exam centres.
    The exam is optional for a fee of Rs 1000/- (Rupees one thousand only).
    Date and Time of Exams: 18 December 2020 Morning session 9am to 12 noon; Afternoon Session 2pm to 5pm.
    Registration url: Announcements will be made when the registration form is open for registrations.
    The online registration form has to be filled and the certification exam fee needs to be paid. More details will be made available when the exam registration form is published. If there are any changes, it will be mentioned then.
    Please check the form for more details on the cities where the exams will be held, the conditions you agree to when you fill the form etc.


    Average assignment score = 25% of average of best 6 assignments out of the total 8 assignments given in the course.
    Exam score = 75% of the proctored certification exam score out of 100

    Final score = Average assignment score + Exam score

    YOU WILL BE ELIGIBLE FOR A CERTIFICATE ONLY IF AVERAGE ASSIGNMENT SCORE >=10/25 AND EXAM SCORE >= 30/75. If one of the 2 criteria is not met, you will not get the certificate even if the Final score >= 40/100.

    Certificate will have your name, photograph and the score in the final exam with the breakup.It will have the logos of NPTEL and IIT Madras .It will be e-verifiable at nptel.ac.in/noc.

    Only the e-certificate will be made available. Hard copies will not be dispatched.

    Once again, thanks for your interest in our online courses and certification. Happy learning.

    - NPTEL team