beginner

Introduction to COBOL and Mainframe Programming

Computer Programming

5 courses

129 practices

8 hours

Explore the fundamentals of COBOL and Mainframe programming, the backbone of many key applications today, especially in the finance sector. This path guides you from basic COBOL syntax and data types to advanced data management, control structures, and file handling.

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Verified skills you'll gain

DEVELOPING

General Programming and Algorithms

DEVELOPING

Computer Science Fundamentals

Tools you'll use

COBOL

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Course 2

COBOL Data Types Deep Dive

4 lessons

19 practices

Dive deeper into COBOL data types and learn how to handle strings, signed integers, and decimal numbers. This course will help you understand how to define and manipulate different data types in COBOL programs.

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Course 3

Enhanced COBOL Data Management

5 lessons

25 practices

Expand your foundational COBOL knowledge with a focus on more sophisticated data structures and arithmetic operations. This course will deepen your understanding of group items, arithmetic operations, and their practical applications, setting the stage for advanced data handling and computations in COBOL programs.

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Course 4

COBOL Control Structures

6 lessons

31 practices

Gain a deeper understanding of control structures in COBOL. This course will teach you how to navigate complex decision paths using IF statements and EVALUATE statements, and how to loop through several values, all crucial for making decisions in banking applications.

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Course 5

COBOL File Handling

5 lessons

25 practices

In this course, learn how to handle files in COBOL. This is crucial for banking applications that need to store and retrieve customer and account information. You'll start with basic file operations and gradually move to more complex file handling.

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From our community

Hear what our customers have to say about CodeSignal Learn

I'm impressed by the quality and can't stop recommending it. It's also a lot of fun!

Francisco Aguilar Meléndez

Data Scientist

+11

I love that it's personalized. When I'm stuck, I don't have to hope my Google searches come out successful. The AI mentor Cosmo knows exactly what I need.

Faith Yim

Software Engineer

+14

It's an amazing product and exceeded my expectations, helping me prepare for my job interviews. Hands-on learning requires you to actually know what you are doing.

Alex Bush

Full Stack Engineer

I'm really impressed by the AI tutor Cosmo's feedback about my code. It's honestly kind of insane to me that it's so targeted and specific.

Abbey Helterbran

Tech consultant

I tried Leetcode but it was too disorganized. CodeSignal covers all the topics I'm interested in and is way more structured.

Jonathan Miller

Senior Machine Learning Engineer

+12

I'm impressed by the quality and can't stop recommending it. It's also a lot of fun!

Francisco Aguilar Meléndez

Data Scientist

+11