The more I read about some of the operating systems eventually died out (mostly), the more disappointed I am that the only realistic options for workstation/server OS’s are Windows and a handful of Unix-like systems.
I would be very curious to see a list of features which were available in defunct OSes that are not available or only available via kludge these days. There are some great ideas still out there in the wild.
- 64-bit, journaled, UTF-8 capable, extended attributes: things that are standard today but novel at the time
- It had "live queries" meaning feeds into file changes. AFAIK only NTFS has that today with https://en.wikipedia.org/wiki/USN_Journal. Inotify is a hack: have you tried monitoring your root folder ?