EPOK80

Learn the Systems That Still Run the World.

Accounts are issued by an administrator. There is no self-service registration and no email address on file.

Set your password

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Training modules

Every panel below is a working reproduction of a real terminal screen. All data shown inside them is synthetic.

Your competency

Levels are earned from demonstrated work, never self-assessed. Navigation coverage can establish the lower levels; the higher ones need validated work and human review.

Code exercises

Column discipline in COBOL and JCL, step termination in SAS, money arithmetic in Python, and a batch entry point in Java.

Authoring

Exercises

Each program below has deliberate defects. Fix them. The server re-checks your work — nothing you send decides whether you passed.

Enter submit · F3 return · F7/F8 page · Tab next field · Esc clear field