28 Nov
2022
28 Nov
'22
2:45 a.m.
But to shut down the dual 3B20 used in switching, you pulled long copper
rod, about 3cm in diameter, from a receptacle between the two machines. It
was attached with a braided conductor to the frame. And then you slid the
rod into another receptacle to short out the power supply for certain.
-rob
On Mon, Nov 28, 2022 at 5:59 AM <arnold(a)skeeve.com> wrote:
Georgia Tech got two 3B20s. They did very little more
than consume
electricity and look impressive. I wanted to port 4.2BSD to them,
but that never got off the ground.
"Ron Natalie" <ron(a)ronnatalie.com> wrote:
. But everyone knew what the J stood for. The 3B2
served as a doorstop.
Shades of the jerq terminal. The J prefix persiste in the code long
after the nickname was quashed.
Being in charge of the Rutgers computer center, we were gifted a lot of
ATT hardware. We had one 3B20 (now that was a pure piece of phone
equipment, you shut it down by turning a switch inside and holding the
button down until it twanged. Just like putting an old 303 modem into
loop back). We also got three 3B5's (noted for the one installed in
the New Brunswick computing room that got completely drenched when a
pipe burst and kept on running) and countless of the 3B2s. I chortled
in that unless you were logged in as root, you couldn't work the power
switch. Yanking the cord out of the wall was still and option.