To date myself, I was one of the first Sys Admins to work with HPUX on the RISC systems at HP Palo Alto, Calif. I just loved every aspect of that version of UNIX. Thanks for posting.
Linux has won—as a server operating system and as the “base” for Google’s Android operating system.
In the 70s I sold CRTs to AT&T in Raleigh NC, the home of the original UNIX, and also the 22 Baby Bells around the country. I had never heard of UNIX but it didn't take long for it to become the "King of open systems".
I was fortunate enough to be in the right places at the right times.
I never wrote a line of code, but I loved UNIX and bought a series of new and bigger Mercedes based on the sales generated by UNIX stuff. To this day, I can't write a line of code, of any kind.
In that 1980 time period, Honeywell had their own mainframe computers, and were using a version they called “Multix”, which I think was just a multi-user version of Unix; our CS department at college used it, while the engineering departments were using IBM mainframes and their operating system.
Back in the day.... I used ELM a lot — it was my mail client of choice. Not my first chronologically — that was VAXmail on VMS — but my favorite for many, many years. Dave Taylor was a hero to me.