Tim Sneath wrote:
It's a shame not to see VAX/VMS on the list. Apart from my obvious bias towards Windows, I'd give it my clear vote. The DCL shell remains one of the most orthogonal yet powerful environments I've ever come across, the clustering support was years ahead of its time, and even in the early 1990s, a single cluster could support hundreds of users simultaneously. Add in a great collaborative email system in All-In-One, and a LAN Manager compatible file server in DEC Pathworks, and it really was a good all-rounder.
Yep, there are a few good operating systems missing. You can relive the VAX/VMS experience complete with clustering with
SIMH and the
OpenVMS Hobbyist License. I had two virtual VAXen clustered running on one physical machine. It's pretty cool stuff.