

Mainframe Pi: Turn your Raspberry Pi into a Mainframe Computer
In this short course i have taught the following two things: Using Raspberry Pi for the first time. Installing MVS …

“Redirection is not supported” error in COBOL compilers
“Redirection is not supported” is a common error in GnuCOBOL and OpenCOBOLIDE. It can occur when you try to run …

An introduction to COBOL
On my Youtube channel i recently uploaded some videos for those who want to learn COBOL programming for free. The …

The Complete Job Control Language (JCL) Course
JCL or JOB Control Language is the scripting language of the mainframes. It is used to run programs on the …

The Complete Mainframe Professional Course: TSO/ISPF
TSO/ISPF is the first step towards learning Mainframes. After completing this course you will be able to understand the following: …

Practice JCL using MVS Turnkey 3.8j system
MVS Turnkey 3.8j is a ready to use Mainframe system. You can use it to practice your JCL skills. The …