[ih] The UCLA 360/91 on the ARPAnet/Internet

Craig Partridge craig at aland.bbn.com
Sun May 13 16:13:03 PDT 2012


> > PS - my introductory role to the Internet in the 1977/78 timeframe was
> > to implement TCP 2.5 for a PDP-11/40 running Unix, using Jim Mathis'
> > implementation for the LSI-11 as a base.  AFAIK, that was the first
> > TCP implementation for any Unix system.  Because the 11/40 was so
> > limited, my implementation was done in user address space, which
> > severely hampered performance.  Mike Wingfield subsequently did an
> > implementation in C for the PDP-11/70, and Rob Gurwitz did one for the
> > VAX.  Rob's code was supplied to Berkeley for incorporation in BSD,
> > but whether they used it in the BSD TCP for anything other than a
> > bookend is unknown.

Yes, they used to justify their bugs on the grounds that the bugs were
also present in the BSD code.  Half :-) but half serious as I did hear
the excuse at least once from a Berkeley person.

Thanks!

Craig



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