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

[John Day]

We did two or three TCP implementations for the 
11/70 in the 77-80 time frame.  My memory is a 
bit vague.  I know we did two iterations.  What I 
can't remember was did we do one before we left 
the University, if so that one would have been on 
an 11/45.  As I said, we put Unix up (on the 
11.45) in the summer of 75, by the Spring of 76 
we had a stripped down version of Unix on the 
LSI-11 with a plasma panel and early touch screen 
as an intelligent terminal, sort of an early 
attempt at an X-terminal.

At 19:13 -0400 2012/05/13, Craig Partridge wrote:
>  > > 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. ÝAFAIK, that was the first
>>  > TCP implementation for any Unix system. ÝBecause the 11/40 was so
>>  > limited, my implementation was done in user address space, which
>>  > severely hampered performance. ÝMike Wingfield subsequently did an
>>  > implementation in C for the PDP-11/70, and Rob Gurwitz did one for the
>>  > VAX. ÝRob'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