Free Operating System Courses

Operating System is an integral part of any device for smooth operation. Hence, job opportunities for working on any Operating System are pretty high. It is essential to understand the operating system thoroughly to grab more job opportunities. Enroll in Great Learning’s Operating System Free Courses and secure your Certificates.


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Operating System is seen as an interface between the user and the computer. It is difficult for a user to communicate with the machine through machine language. Operating System becomes that interface where the user can complete their tasks with much ease. At the hardware level, these tasks are interpreted using machine language, resulting in smooth processing and completion of the tasks.

 

Operating System handles the execution of the processes, File Management, Resource Allocation, and many other tasks. Its main functions include Process Management and Synchronization, Handling Deadlocks, and File Management.

 

Operating System provides a comfortable environment for users with effective communication methods with the hardware for process completion. A computer system is incomplete without the following:

 

  • Operating System
  • Application programs
  • System Programs
  • Users
  • Hardware

 

Operating System does:

 

  • CPU Scheduling
  • File Management
  • Process Management
  • Process Synchronization
  • Memory Management
  • Security

 

You can find many Operating Systems being used in the present use cases. Thus, there are many types of Operating Systems:

 

  • Batch Operating System

Batch processing was prevalent in the late ’90s. The processes were executed in the Batch method, and they used only one computer as the primary system, which is used to complete most of the tasks.

 

Here, access is granted to every person to submit their respective tasks for execution to the primary system. These tasks are put on queue following the first-come, first-served approach, and then the execution of the tasks is done. The output is received by the respective individual when all the tasks are executed.

 

The main disadvantages of the Batch system are Starvation and Less Interactiveness.

 

  • Multiprogramming Operating System

Multiprogramming is an extended version of the Batch Operating System. Here, the CPU is always kept busy, and each process requires CPU and I/O time. Multiprogramming increases the efficiency of the Operating System. While the process is waiting for I/O, the CPU can start processing the other processes.

 

  • Multiprocessing Operating System

Multiprocessing helps in parallel computing. It increases the system’s throughput by increasing the number of processors present, which will execute more than one process at a time.

 

  • Real-Time Operating System

For every process, there is a deadline within which the execution must be done. After the deadline, if the process gives an output, then it is entirely useless. For example, Military and Aviation applications use the Real-Time Operating System.

The CPU must execute the instructions for a program to process. A program that is being executed is called a process. A computer system is required for a process to run the program and complete the task. Processors may have one or more processes to be executed. To do it parallelly, the Operating System has to manage the resource allocation efficiently. 

 

The Operating System must also handle the deadlock condition that arises when one of the processes requires the resource being used by another process. Hence, the following are the activities that Operating System are responsible for under Process Management:

 

  • Scheduling threads and processes on the CPU
  • Supporting process synchronization
  • Allowing process communication
  • Both user and system processes can be created and removed 
  • Suspending and resuming processes

 

The Operating System uses process attributes to build the Process Control Block (PCB), also known as the context of the process. Process attributes in PCB are:

 

  • Process ID
  • Program Counter
  • Process State
  • Priority
  • General Purpose Registers
  • List of open files
  • List of open devices

 

Applications of an Operating System include:

 

  • Security
  • Control over system performance
  • Job accounting
  • Error detecting aids
  • Coordination between other software and users

 

The Operating System is a vast topic where you can explore more exciting concepts. To understand Operating Systems better, enroll in Operating System Free Courses offered by Great Learning. You can also secure Free Operating System Certificates on successful completion of the courses.

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Frequently Asked Questions

Is Operating System an important course?

Yes, for the individuals who want to become one of the finest programmers and developers, the Operating System is an important course. Understanding Operating Systems becomes one of the integral parts of computer science.

Is Operating System a hard course?

Operating System courses are not hard, but understanding the concepts and executing them may be complicated. In the future, you may have to write your own Operating System as a developer.

What is the main function of the OS?

The main functions of the Operating System are Process Management, Process Synchronization, File Management, and Handling Deadlocks.

What is the use of learning an Operating System?

By learning an Operating System, you will know how users are unknown to the backend processes hardware executes by creating an abstraction. Operating Systems are easy to use along with GUI. It offers an environment where you can process and complete your programs and various tasks.

Why do we need to study an Operating System?

A computer system is incomplete without an Operating System. Thus, to understand how a computer system works, you must learn an Operating System. To understand memory allocation, resource allocation, program execution, CPU workings, and more, you need to know what Operating System is and how it functions.

Do web developers need to know the Operating System?

Web developers do not need to know the working of the Operating System in depth. They only make use of the Operating System for their convenience, and they don’t need to understand the working of the Operating System.

Will I get a certificate after completing these free Operating System courses?

Yes, you will get a certificate of completion for Operating System courses after completing all the modules and cracking the assessment. The assessment tests your knowledge of the subject and badges your skills.

How much do these Operating System courses cost?

It is the entirely free courses list from Great Learning Academy. Anyone interested in learning the basics of Operating System can get started with these courses.

Is there any limit on how many times I can take these free courses?

Once you enroll in the Operating System courses, you have lifetime access to it. So, you can log in anytime and learn it for free online.

Can I sign up for multiple courses from Great Learning Academy at the same time?

Yes, you can enroll in as many courses as you want from Great Learning Academy. There is no limit to the number of courses you can enroll in at once, but since the courses offered by Great Learning Academy are free, we suggest you learn one by one to get the best out of the subject.

Why choose Great Learning Academy for these Operating System courses?

Great Learning Academy provides these Operating System courses for free online. The courses are self-paced and help you understand various topics that fall under the subject with solved problems and demonstrated examples. The courses are carefully designed, keeping in mind to cater to both beginners and professionals, and are delivered by subject experts. Great Learning is a global ed-tech platform dedicated to developing competent professionals. Great Learning Academy is an initiative by Great Learning that offers in-demand free online courses to help people advance in their jobs. More than 5 million learners from 140 countries have benefited from Great Learning Academy's free online courses with certificates. It is a one-stop place for all of a learner's goals.

What are the steps to enroll in these Operating System courses?

Enrolling in any of the Great Learning Academy’s courses is just a one step process. Sign-up for the courses, you are interested in learning through your E-mail ID and start learning them for free online.

Will I have lifetime access to these free Operating System courses?

Yes, once you enroll in the courses, you will have lifetime access, where you can log in and learn whenever you want to.