Heinz,

Using LSX on the 11/03, what did you use for interaction with the outside
world? The SLU of the time had only one port I believe, and that would be
tied up with the console terminal. Will LSX handle cards with multiple
serial ports? Was there a favoured digital or analog I/O board with some
form of kernel support?

Paul

*Paul Riley*




On Sat, 19 Sep 2020 at 22:22, Heinz Lycklama <heinz@osta.com> wrote:

> I do believe that it would be easier to use LSX source code,
> but I also know that some folks at universities were able
> to modify the source for Mini-UNIX to run on 11/03 in
> the mid-70's because of the two, only Mini-UNIX source
> code was available to universities.
>
> Heinz
>
> On 9/18/2020 8:22 PM, Paul Riley wrote:
>
>
> Team,
>
> I’ve read thru the FAQ and other sources regarding compatibility of
> Research and other flavours on the PDP-11. I have two physical machines, an
> 11/03 and an 11/23+. I’m choosing which version to use on each machine.
>
> Is LSX the only option on the 11/03, or could I run V6 or Mini-Unix with
> more RAM?
>
> From the FAQ, it says V7 would support 11/23 with kernel recompilation, I
> assume includes 11/23+. I see 2.11BSD would also run on a ‘23 (and + I
> guess) with 1MB or more of RAM, so that would be preferred. I suppose 2.11
> would be preferable.
>
> I also have found another 11/23+ system from a seller here in China.
> There’s the system, and a VT100, and a hard drive I can’t identify. Here’s
> a photo, does anyone know what it is? I may bid for it...
>
> Paul
>
> *Paul Riley*
>
>
>
>