(Click to skip Windows history rants to actual guide) In my book, the last decent Windows system ever was 7. From Windows 10 onwards, it’s sad and disgusting finalization of what certain security researcher aptly called “zombification of general-purpose OS” – you as the user/admin/owner have no control whatsoever over that darn thing and are…

I’ve spent 14 years on the IBM mainframes. It was and still is an amazing, exotic technology even most IT tech people will never get to touch in their lives. The mainframes may look intimidating, but with a bit of abstraction, aren’t so different from Linux. This complete illustrated tutorial guides newcomers to the z/OS…

(Part 1 of 2-part IBM z/OS crash course “From Linux to Mainframe in one day”) While mainframes can work interactively, “online”, this is mostly reserved for special applications like the IBM CICS transaction server. Most of the workload runs in so-called “batch processing” mode – running scripts., kind of similar to Cron+Bash combo on Linux….