--- Tony Duell <ard_at_p850ug1.demon.co.uk> wrote:
> Well, my 'main' PDP11 has both Unibus and Qbus (!). It's an 11/45 with a
> DW11-B. On the Unibus side I have memory, RX11-C, RX611, DR11-Bs, paper
> tape, etc. On the Q-bus side I have an RLV11, MINC modules, IBV11, etc...
>
> Quite an unconventional system...
Neat. I also have a DW11-B (and the DDV11B backplane to go with it).
When I got it, it only had an IBV11 in it. I haven't bothered to use
something like an RLV11 with it because I have more than one RL11.
I don't know what I'd call my "main" PDP-11 system at the moment. The
one I have spent the most accumulated time on is a PDP-11/23 in a
(modified) BA-11N, with 512KB of RAM, an RLV11, LPV11, RXV21 and
a third-party 512x512 graphic board. I used it to earn my living in
1986 and 1987, writing software under RT-11 for an customer whose
target machine was a 4MB PDP-11/73 w/Fuji Eagle, greyscale electrostatic
printer and GE motion controller that was used to inspect industrial
diamonds in an ultrasonic tank. Big fun! 350K (output) of MACRO-11
code.
The other -11 that I've put some time and effort into is an 11/24
w/KT-24, a few megs of RAM, RL11, that I've installed 2.9BSD onto.
> For hardware hacking, I find the Unibus to be simpler. I also have more
> 'exotic' controllers for that bus..
True. Me, too... disk, tape, DEC comms, abundant COMBOARDs, etc.
> > ...my SBC-6120 w/IOB-6120 fits the bill...
>
> :-)... That;s the sort of machine that would probably do the job... Pity
> it's not available commercially...
It's also not cheap... End-to-end, it cost more than nearly all of my
"real" PDP-8s (15 years ago, I did spend over $1,000 on an RL8A, RL01,
VT52, KT8A and MSC8DJ to attach to a *free* PDP-8/a, just to play
around; fortunately for me, most of the peripherals were lying around
to attach to the aforementioned PDP-11/23). There are side benefits,
though; I'm getting plenty of SMT practice assembling the IOB-6120.
-ethan
Received on Thu Jun 05 2003 - 13:59:00 BST