Clem Cole wrote:
1.) Zimmerman EMACS (a.k.a. CCA EMACS) ran on the
PDP-11 originally
when Steve wrote it at MIT.
I have this on the origin of Montgomery and Zimmerman Emacs:
"[Montgomery's] emacs implementation was begun in 1979, after having
left MIT. I made it freely available to people INSIDE of Bell Labs,
and it was widely used. It was never officially "released" from Bell
Labs."
"Unfortunately, several copies did get out during that time, mainly
due to people who left Bell Labs to return to school or gave copies to
friends. When Zimmerman modified one of those copies as the original
basis for CCA emacs, AT&T and CCA had a prolonged debate over it.
Eventually the matter was resolved when Zimmerman replaced the last of
my code"
https://github.com/larsbrinkhoff/emacs-history/blob/sources/Usenet/net.emac…