The Complete Mainframe Professional Course - 4 Courses in 1 (Udemy.com)
The first step in learning about Mainframes. Covers COBOL, JCL, VSAM, TSO/ISPF, Unix System Services and CICS.
Created by: Abhishek Rathi
Last updated October 2024
What you will learn
- You will learn to code COBOL programs
- You will learn to code COBOL - CICS programs
- You will master TSO and ISPF Commands on Mainframe computer that will help you in your day to day work and projects
- You will learn how to code JOB CONTROL LANGUAGE programs
- You will learn all the major ISPF commands and understand ISPF operations
- Advanced TSO/ISPF commands are covered as well
- You will learn all major VSAM topics such as creation of KSDS, RRDS, ESDS, LDS, Alternate index, REPRO etc
- You will learn how to create datasets on a Mainframe and perform operations on them
- You will be able to Install your own Mainframe Operating system emulator on your Personal Computer
- You will also learn how to connect to a Mainframe
- You will learn what a Mainframe is
- Mainframe Manufacturers in the world today
- The History of IBM Mainframes
- Operating Systems used on Mainframe computers
How it compares
Against the other 1,182 rated Udemy courses in IT & Software on CourseDuck:
- Rating4.5 out of 5higher than 45% of them
- Reviews9,791#47 of 1,183 by number of reviews
- Length19.4 hourslonger than 88% of them
- Last updatedOctober 2024earlier than 60% of them
Course Description
Note: Mainframe ID will not be provided with the course. You have to arrange your own Mainframe ID.
Welcome to the most detailed and elaborate course about Mainframe on the whole internet. The course offers exclusive content about Mainframe in movies and other media.
The course has been BESTSELLER since its launch in January 2017. It is the top reviewed and most sought-after course about Mainframe on Udemy. I made this course exclusively for UDEMY. You will not find content like this on the internet.
This course also includes some amazing facts about Mainframes like FIFA world cup brazil used Mainframes to detect whether a goal has been scored or not, and the most recent New Jersey Unemployment department needs COBOL programmers during the COVID-19 corona crisis.
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About Me:
I am the original creator of the Mainframe courses on Udemy. I have been creating content since January 2017. After seeing my success many other instructors and Training institutes have started their own courses. Most of these are training institutes that just launch courses to earn more and more money.
I am NOT a Training institute. I am an instructor on Udemy. Training institutes just launch many courses under many different topics to earn more and more money. They also have physical training institutes where they teach. They then create content and launch on Udemy to earn extra income.
I do not do this. I only create content related to Mainframes and Electronics. I create content exclusively for my website and Udemy.
You can go to my YouTube channel and you will find free content and courses worth many hours related to Mainframes.
I had 3 courses in 2017
1. TSO/ISPF
2. JCL
3. VSAM
I had announced that I will release 3 more courses soon
1. COBOL
2. DB2 SQL
3. CICS
Other instructors started releasing courses under the same title as mine. They added some extra information to make their courses look better.
I have 8 years of experience in Mainframes. I was also the community partner for IBM Z day which was organized by IBM on Nov 21. More than 300 students from this course joined that event. You can search for IBM Z day and on the landing page of the event you will find "Mainframe Nation", that is me.
So be rest assured that you are learning from an authentic Udemy Instructor and not from a Training institute.
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This course is a collection of 4 courses.
It covers TSO/ISPF commands in detail. The ISPF commands taught in the course are exhaustive.
After TSO/ISPF it covers Job Control Language basics.
It then teaches COBOL basics.
VSAM is covered in detail.
CICS along with 2 projects is explained at the ending of the course.
After this course, you will have a full overview of the Mainframe environment.
Monthly updates: I provide monthly updates to the course. I keep adding new content to the course, so you can keep learning new things about Mainframes.
All this comes with a 30-day money-back guarantee.
Heard about Mainframe but are not sure how to get started? This course will teach you what you want to know. This is the first step for anyone who wants to learn about Mainframes so you can start a new career as a Mainframe Professional.
This Course is DIRECT and TO THE POINT.
Over 19 hours of video content and 200+ lectures.
5 COBOL Assignments, 2 Mini projects in CICS, and a Practice Test.
Get all the presentations in the course, so you don't have to take notes while watching the lectures.
I also UPDATE this course periodically to include even more Videos. New Resources and Articles are also added.
Join Over 6,200+ Students Who Have Enrolled in this Udemy Course.
If you ever have any questions please feel free to message me directly and I will do my best to get back to you as soon as possible!
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Build a foundation in Mainframe with this tutorial.
You will Learn:
What a Mainframe Computer is.
The various Technologies and Terminologies associated with Mainframes.
Running TSO/ISPF Commands on a Mainframe
Creating datasets and performing operations on them
Identify the different programming languages and Operating systems used on mainframe
ISPF commands
TSO commands
JCL in detail
VSAM in detail
Basics of CICS
Basics of COBOL
and much much more......
Mainframe is extensively used in large corporations which deal with huge amounts of data every day. Over 70% of the global Fortune 500 companies use Mainframe to run their business for everything from cloud to mobile to big data and analytics. Now, there are 1.1 million customer transactions per second on Mainframes compared with just 40,000 searches on Google per second. IBM is the leading manufacturer of Mainframe Systems.
Content and Overview Through this course of over 18 hours of content, you’ll learn about the Mainframes and establish an understanding of the mainframe system.
Starting with an overview of the Mainframes, this course will take you through the types of datasets, Operating systems, and data processing used on mainframes.
With these basics mastered, the course will take you through TSO commands, will introduce you to ISPF commands, allocation of datasets, and then the different operations you can perform on the datasets.
It will then cover JCL, VSAM, COBOL, and CICS.
Upon completion you will be literate in Mainframe terminology, understand how datasets are created, and how you can use commands to operate on the data in these datasets. You will gain enough knowledge to self-learn further Mainframe topics such as CICS.
Instructor Details
- 4.5 Rating
9,791 Reviews
Abhishek Rathi
I am a Mainframe Developer.
I have more than 11 years of experience in Mainframes.
I completed my Bachelor of Technology in Electronics & Communications Engineering and my Master of Engineering in Artificial Intelligence.
I published my first Udemy course in Jan 2017. There were no courses about Mainframes on Udemy at that time.
I have since released 5 courses on Mainframes. Over time the content of all these 5 courses has been consolidated into 2 courses.
The first course titled TSO/ISPF is an introductory course about Mainframe Technologies. It is meant for those who have no knowledge about Mainframes and want to have a head start in this field. It covers TSO/ISPF in detail and other Mainframe Technologies like JCL, VSAM, CICS, COBOL. The second course covers JCL in detail.
All my courses are hands-on practical training. I provide the best quality content with professional video editing. You can compare my courses with others and see for yourself.
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Reviews
By Suraj Mahindrakar on 9/7/2026
It was amazing course personally i was looking for a course by using it we can learn the how to use the jcl in many other courses they are only explaining the terms not showing handon practice great course give rating 10 out of 5
By Akankshi Jain on 7/26/2026
I really enjoyed this course, and it helped me refresh my mainframe concepts after a 10-year career gap. The explanations were clear and easy to follow, making it much easier to revisit topics I hadn't worked on in a long time. I especially appreciated the CICS section. Although I had never worked with CICS before, this course gave me a solid understanding of its fundamentals and how it fits into the mainframe ecosystem. Thank you for creating such a well-structured and practical course. I truly appreciate the effort you put into it. I'll definitely be enrolling in your DB2 course next to continue my learning journey.
By Arvind Krishnan on 5/3/2026
Yes it has been a wonderful and interesting learning experience for me until now. Very impressive course this is and too useful.
By Yashsandeepp on 4/19/2026
BY SO FAR THIS COURSE DOES NOT GONE TO THE DEPTH WHICH IS NECESSARY TO LEARN THE LEGACY TECHNOLOGIES LIKE MAINFRAME , I THINK IT SHOULD BE GOOD IF IT CONTAINS WELL DEFINED DEPTH.
By John Gibson on 3/21/2026
It helped me refresh my COBOL skills and TSO commands I have not seen before but not needed.
By Chandan L on 1/30/2026
Its really a very good course done by abhi and i was the person with zero knowledge on this mainframes but now i can confidently tell that i have learnt something by this course. Thanks Abhishek
By Vijayaragavan Rajavel on 1/22/2026
This is fantastic course! Thank you for such detailed course for all the topics in Mainframe
By Kondal Rao Penubakula on 12/21/2025
Looking for more information in JCL, COBOL and DB2. Overall the content and explanation was good. I have clicked on the link provided for mainframe material and it directed to spam.
By Graeme Ing on 12/8/2025
The detail level is perfect for me. As a programmer of other languages this gives information without spending time on stuff I already know, but has sufficient detail for me to grasp the intricacies of Mainframes, JCL, VSAM and COBOL
By Jesús Humberto Aispuro López on 11/20/2025
I am not finished yet tehe course, but it seems to need the PDF that the instructor does not give it to uts because some guy shared online, i can not find it, and if is online already, why not share it?
By Jeeva . on 12/20/2020
excellent
By Peter Hartmann on 12/20/2020
Ich verstehe den Dozenten kaum
Quality Score
No CourseDuck member has rated this course yet. Taken it? Give each part a thumbs up or down.
Overall Score : 90 / 100






