Have you seen https://www.ibmmainframer.com/? I would also dig through Project G...

		mediaserf on Nov 28, 2022 \| parent \| context \| favorite \| on: Ask HN: Why is there so little info on the web abo... Have you seen https://www.ibmmainframer.com/? I would also dig through Project Guttenburg https://www.gutenberg.org/ for IBM Mainframe Programming books if you're interested in the history.