[TUHS] Do you have any historical UNIX computers?

[Clem Cole]

There's a nice UDA/KDA emulation that uses SD cards or basically anything
on the Linux side.   I helped Dave Plummer (Dave's Garage fame) get it
working with 2.11BSD on an 11/85 as a second KDA which 2.11 did not want to
do.   I suspect that's the way to go these days.   He has it emulating
RA92's and a few other things.  Since this is more about HW than UNIX
specifically, we should take it off line.


Clem

On Mon, Jun 9, 2025 at 4:40 PM Noel Chiappa <jnc at mercury.lcs.mit.edu> wrote:

>     > From: Vicente Collares
>
>     > I'm more interested in its historical signaficance.
>
> If that's your interest, PDP-11's are absolutely _the_ way to go. The
> PDP-11
> is _the_ machine that made UNIX. That choice has good points, and a very
> bad
> point, though.
>
> Good points are that QBUS PDP-11's are pretty easy to find, pretty small
> (desktop PC-sized), and not very expensive. They're pretty robust, too - I
> have a large stack of PDP-11 QBUS CPUs, and none of them had failed, as of
> the
> last time that I powered them on.
>
> The very bad point is that working mass storage for them is very hard to
> find. The controllers are around, but not the drives.
>
> Does anyone know if anyone is making a QBUS mass storage clone? Bridgham
> and
> I were going to produce QBUS RK11/RP11 clone that used SD cards to hold the
> bits. We got the prototype working, and it booted UNIX, but then I came
> down
> with COVID and post-COVID myalgic encephalomyelitis, and that was the end
> of
> that.
>
>         Noel
>
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