It is so stressful and alienated that the decades spent on mainframe is good but not great. I worked on the partition Management called lpar. Os and db2 etc. It is sort of more interesting to do dos/vse. I guess instead of thousands of users you have hundreds.

I love my Hp 200 dos calculator whilst waiting for the cartridge to run, … at least it is not open reel tape as the cartridge tape at least always suck in.