[TUHS] ATT Hardware

ron at ronnatalie.com ron at ronnatalie.com
Fri Jun 29 23:16:12 AEST 2018

The recent reference to the Dennis's comments on ATT chip production had me
feeling nostalgic to the 3B line of computers.  In the late 80's I was in
charge of all the UNIX systems (among other things) at the state university
system in New Jersey.   As a result we got a lot of this hardware gifted to
us.    The 3B5 and 3B2s were pretty doggy compared with the stuff on the
market then.   The best thing I could say about the 3B5 is that it stood up
well to having many gallons of water dumped on it (that's another story,
Rutgers had the computer center under a seven story building and it still
had a leaky roof).    The 3B20 was another thing.   It was a work of
telephone company art.    You knew this when it came to power it down where
you turned a knob inside the rack and held a button down until it clicked
off.    This is pretty akin to how you'd do things on classic phone
equipment (for instance, the same procedure is used to loopback the old 303
"broadband" 50K modems that the Arpanet/Milnet was built out of).    Of
course, the 3B20 was built as phone equipment.    It just got sort of
"recycled" as a GP computer.


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