Course Description

Introduction to TSO and REXX APIs

Course Code: A-780
Recommended Duration: 2 Days


"APIs" stands for "Application Programming Interfaces"; students who complete this course will be able to design and maintain applications using native TSO commands and the powerful REXX capability of TSO. We also discuss invoking TSO commands and working with REXX variables from programs written in Assembler, PL/I, COBOL, and C.


Applications and systems programmers, who need to know how to use the facilities of TSO and REXX from programs written in Assembler, COBOL, PL/I, or C.


At the very least, the student entering this course should have experience in using REXX in the TSO environment and in writing programs in one of these languages: Assembler, COBOL, PL/I, C.

Related IBM Materials

This course is drawn from these and other IBM manuals; access to these publications in the classroom is desirable but not required:

SA22-7782 - TSO/E Command Langugage Reference
SA22-7790 - TSO/E REXX Reference
SA22-7789 - TSO/E Programming Services

Major Topics Include



There are eight standard and one optional hands-on exercises.








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course outline
TSO / ISPF / REXX / CLIST curriculum
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