Mainframe COBOL Programming: Learn COBOL, JCL, and TSO/ISPF

Mainframe computers power the global financial, retail, and insurance industries, with COBOL serving as the core language behind these critical systems. This text-based course provides a clear, step-by-step pathway to understanding mainframe operations and writing dependable COBOL code. You will transition from a complete beginner to a confident programmer capable of developing, testing, and running your own mainframe applications. Through structured explanations and written practice exercises, you will grasp both the historical foundations and the modern relevance of this powerful language. What you'll learn: - Understand mainframe architecture, datasets, and TSO/ISPF navigation basics - Write structured COBOL programs using divisions, sections, and paragraphs - Define and manipulate data using COBOL variables, data types, and tables - Process files and perform input/output operations for data management - Configure and execute Job Control Language (JCL) to run your COBOL programs - Apply modern COBOL programming standards and understand contemporary integration patterns This course begins with fundamental concepts and interface navigation before moving into core programming syntax, file handling, and job execution. It is designed entirely for beginners, requiring no prior programming experience or mainframe knowledge. Start reading today and build a solid foundation in mainframe technology.