18 Nov
2010
18 Nov
'10
10:03 p.m.
Quoting Carl Lowenstein, who wrote on Thu, Nov 18, 2010 at 11:27:31AM -0800 ..
On Thu, Nov 18, 2010 at 10:57 AM, Norman Wilson
<norman(a)oclsc.org> wrote:
I have an 11/2 card :) It used to control the concrete mixing silos at the
company my father used to work for. Came with 2x RX02. I encountered RX02
disks I could not rotate in their sleeve anymore. Too much sand and grit :)
Just cleaned the heads and vacumed out all the cement. Worked just fine
ever after (in fact, it also worked fine with the cement & grit & whatever
:)
Wilko
Just to loop things around a bit:
Some of the larger VAXes used small PDP-11s (and their
bastard offspring) as console processors.
This started with the very first VAX, the 11/780, which
used an 11/23 as a console. The console ran a stripped-down
system, possibly based on RT-11 or RSX-11, I forget (and
am typing this on a train in the Outer Mongolia part of
Texas where it's hard to look up references).
RT-11. Original LSI-11 (quad card) or perhaps 11/2 (dual card). The
processor card that was used in a system called 11/03.