Allison wrote:
It is true that many system that didn't have
connectviity to the big hub systems
that formed tha backbone if DARPA-net then later ARPAnet used UUCP to pass their
traffic?
Systems that were on ARPANET passed their internet email over ARPANET.
There generally weren't "part time" connections to ARPANET; either a
site was connected to ARPANET or it wasn't. ARPANET used leased lines.
It was not uncommon for ARPANET sites to also participate in UUCP, and
if they were given email with a bang path, it's possible that they would
send email by UUCP that could otherwise have gone over the internet.
That doesn't make UUCP a part of the internet, nor does it make UUCP
email a part of internet email.
Eric