Try this for a bunch of free z courses (with real machine access for labs) https://www.ibm.com/training/ https://www.ibm.com/training/ I've done 4 or 5 includ

Try this for a bunch of free z courses (with real machine access for labs) https://www.ibm.com/training/ https://www.ibm.com/training/ I've done 4 or 5 including z/OS and COBOL. There's also: https://www.ibm.com/it-infrastructure/z/education/zxplore https://www.ibm.com/it-infrastructure/z/education/zxplore Which appears to be the replacement for the Master the Mainframe program. Includes real machine access. Although it's usefulness in comparison to real z/OS access is debatable, you might also check out the TK4- system which is an old MVS packaged along with the Hercules emulator. A lot of stuff hasn't changed in z/OS, but a lot has. http://wotho.ethz.ch/tk4-/ http://wotho.ethz.ch/tk4-/