[HECnet] This is probably been asked already but....

[Dave McGuire]

On 07/02/2012 10:58 AM, Bob Armstrong wrote:
Was that the RTOS used with the T-11 (the first single-chip PDP-11?)
I seem to remember that it was used as the RTOS in the LA-120 printer.

  Did the LA120 have a T11 in it?   Wow - makes me want to go take mine apart
and look :-)

  I just picked up four more LA120s with some 11/84s and a bunch of
RA90s.   (very happy!)   I will check tonight if you don't look at yours
by then.

  For example, the RFxx drives (all of 'em, I think) used a T11 and I'm
pretty sure ran some variant of RSX-11S.

  Wow, I didn't know that, that's neat!

  The HSC controllers had PDP-11s in them, didn't they?   I don't remember
which model but I bet the OS was another RSX derivative.

  The HSC50 uses an F11, the HSC70 and HSC9x use J11s.

  Some of the bigger DECserver terminal servers were PDP-11 based (not T11,
but an 11/53 for example).   Don't know if the little ones (e.g.
DECserver-100, 200, etc) were T11 or 68K based.

  The -200 is 68K-based.   I don't know about the -100.   The -550 is the
one that's basically a PDP-11/53 with different EPROMs.

                        -Dave

-- 
Dave McGuire, AK4HZ
New Kensington, PA