I think the Pick OS, at least in its native form, had no file system but used a database. It was very easy to program. I saw colleagues with no computer scienc

I think the Pick OS, at least in its native form, had no file system but used a database. It was very easy to program. I saw colleagues with no computer science education writing complex queries on "Pick Basic", what would have been impossible for them on classical computers of the time (or of today as well). https://en.wikipedia.org/wiki/Pick_operating_system https://en.wikipedia.org/wiki/Pick_operating_system