Clem Cole wrote:
TECO started as that for PDP-1 or maybe TX-1 (at MIT I
believe). But
over time, TECO became the primary text editor on the PDP-10's for
many, many people in the ARPA community.
I think PDP-1. As far as I know, no surviving copy has emerged. Not
even Dan Murphy has one.
And not just the PDP-10. I think just about every DEC computer had a
version of TECO, right?