For over 45 years I have developed and taught courses for application programmers working on
IBM's premiere operating systems - from DOS up to and including z/OS.
- My training materials cover these areas:
- Application programming for z/OS
- ISPF / Dialog Manager
- CLIST
- REXX
- JCL
- Assembly Language
- COBOL
- VSAM
- Language Environment (LE)
- These training materials are available for licensing and can be used ...
- To teach live, hands-on courses, led by a qualified instructor
- As study materials for small groups, with a knowledgable advisor
- For self study, again with a knowledgable advisor
© 2026
Steven H Comstock -
All rights reserved
Last update: Tuesday 14 July, 2026 at 08:48:33 PDT