On Mon, 30 Mar 2020, Clem Cole wrote:

...
> kernel support to?handle?select(2) properly).? I remember talking to Sam (arguing
> with him most probably) about it one night before it was fully created.? ?Iwant
> to say, he had worked on something similar at the firm he was at (the firm
> name I now forget -- si-mumble -- they were in Mt. View) before he joined
> CRSG.? I don't remember now the issues I had, but I do remember it was a bit
> of mess to support the way the AP hardware assumed it could do DMA on the
> UBA[2]

>From my notes:

After graduating, Leffler got a job in the Silicon Valley
at Sytek, a small firm in Sunnyvale.
% CITE: archives/csrg-archives/disk1/mnt/2.79/usenet/netdir/sites/sytek
They used a PDP 11/45 and moved to a VAX 11/750 running VM/UNIX
with four 300 baud ACU's (Automatic Call Units aka ``modems``) ---
they marketed a broadband network to
connect thousands of stations using coaxial cable over a distance
of 40 miles.
% maybe CITE:
http://books.google.com/books?id=AyZfLaxYr9YC&pg=PA43&lpg=PA43&dq=
%28408%29+734-9000++sytek&source=bl&ots=SYGI9rBAOV&sig=rxBo1SgfqdTLuNotXaa59nrR6
C4&hl=en&sa=X&ei=CzbwUJTjI6HN2QX48oGIAw&ved=0CEAQ6AEwBA#v=onepage&q=%28408%29%20
734-9000%20%20sytek&f=false
Since they were using a VAX and he had kept in touch with Joy, he was
a beta-test site for 4BSD.\cite{salus1994}

% NOTE: about sytek: an ad to find employees
%http://books.google.com/books?id=ChMAmfS1nEkC&pg=PA85&lpg=PA85&dq=%28408%29+734
-9000++sytek&source=bl&ots=aS_yQznXAy&sig=6vA7NTbspu3gcf_jT2sOiUSRPZU&hl=en&sa=X
&ei=CzbwUJTjI6HN2QX48oGIAw&ved=0CC4Q6AEwAA#v=onepage&q=%28408%29%20734-9000%20%2
0sytek&f=false

% NOTE: not to take over since no Sun then
Leffler went to Berkeley to work with Joy\cite{billshannon2} in the
fall of 1981.\cite{salus1994}.