COBOL Textbook

Topics

What COBOL Textbook covers, grouped.

  1. 1

    Fundamentals

    Divisions, PICTURE clauses, arithmetic, control flow: the language from the ground up.

    5 lessons

  2. 2

    Data and Tables

    Group items, OCCURS, REDEFINES, editing, and the data description entries that make COBOL what it is.

    5 lessons

  3. 3

    Files and Records

    Sequential, indexed, and relative files; copybooks; the record-layout discipline mainframe shops live by.

    4 lessons

  4. 4

    Modern COBOL

    GnuCOBOL, free format, calling C and Python, JSON, testing, and moving COBOL data in and out of everything else.

    5 lessons

  5. 5

    Practice

    Worked programs that solve a real task end to end: reports, batch jobs, validation, reconciliation.

    4 lessons