30 Nov
2014
30 Nov
'14
3:53 p.m.
On 11/28/2014 8:44 AM, Pontus Pihlgren wrote:
On Fri, Nov 28, 2014 at 04:26:09PM +0100, Jacob Dahl
Pind wrote:
>
> <qoute>
> Unfortunately I do not have much details. I was at the Living
> Computer Museum and talked with RIch Alderson, who used to work at
> XKL. And he showed me a newer generation router from XKL, opened
> up, at LCM. And they use a PDP-10 on a chip, and it was actually
> running TOPS-20, and I could play around at the EXEC level in
> there.
> </quote> >
The system refered to above is visible next to the
TOAD-1 in this video
clip, arround 30 seconds in.
https://www.youtube.com/watch?v=We3BEaiz194
I've know for a while that it's been a 36 bit machine under the hood but
I was told that it is limited in some way, perhaps not a full pager. It
would be fun to get some details. (And if you can get one for yourself
of course).
Given that a PDP-10 only supports a virtual address space of 256 KW, and
that the XKL-2 reports 256MW of memory (another post), it's got to have
some kind of a pager. The KS10 only supported 1 MW of memory,
and the biggest KL-10 only supported 4 MW (I think) of memory.
You can find the "TOAD-1 System Architecture Reference Manual" online.
It describes the pager in detail. I doubt that the XKL-2 is much different.
The pager is incompatible with any DEC hardware. It would have to be to
support that much memory. I wouldn't call it 'limited'.
Rob.