24 May
2021
24 May
'21
6:10 p.m.
From: Lars Brinkhoff
Chris Zach wrote:
> I'll drop by and see which CHAOSNet card it has.
It may have been removed when we worked on getting ITS
booted.
For a long time AI used a UNIBUS CHAOSNet card, plugged into an -11 connected
up to AI via the Rubin 10-11 interface. (I'm not sure which -11; maybe the
TV-11, but I think I remember there was another one used for the CHAOSNet? I
think the same -11 that the AI Lab's 3-mbit Ethernet interface was plugged
into. If I wasn't so lazy I'd look at TV > and see.)
I'm not sure what happened after the Rubin interface died. Maybe they
built another KA I/O bus interface (like the one on ML)? Config > might
answer that question.
Noel
24 May
24 May
6:28 p.m.
New subject: LCM and AI
For a long time AI used a UNIBUS CHAOSNet card,
plugged into an -11 connected
up to AI via the Rubin 10-11 interface. (I'm not sure which -11; maybe the
TV-11, but I think I remember there was another one used for the CHAOSNet? I
think the same -11 that the AI Lab's 3-mbit Ethernet interface was plugged
into. If I wasn't so lazy I'd look at TV > and see.)
Well, this was the KS implementation of AI, it had a two wide card set
that was wire-wrapped with love. I did take the one out of (I think) MC,
that is in my spare set of cards along with an extra console card from
AI. And of course the
https://i.imgur.com/De27IQL.jpg
https://i.imgur.com/Y8t5g91.jpg
The switches are still set, so we should be able to figure out which
system it came from if anyone still had the documentation on that thing.
Lots of wirewrap....
https://i.imgur.com/1weEylq.jpg
https://i.imgur.com/7ngfMuE.jpg
AI did have a full width Micom/Interlan Unibus Ethernet card, so I think
it talked to the Chaosnet/10.2.0.6 address space using that. That card
is in AI, I don't remember a similar one being in MC.
Someone should check with Dave to see exactly what's in MC as he seems
to have it at the moment.
BLT only has the CPU box, so its Unibus box is lost to history with
whatever interface it had to get to the net.
CZ
25 May
25 May
1:04 a.m.
New subject: LCM and AI
Chris Zach wrote:
The switches are still set, so we should be able to
figure out which
system it came from if anyone still had the documentation on that
thing.
These are the Chaosnet addresses of the four KS10 ITS machines:
AI 3130
MC 3131
MD 3132
ML 3133
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2 comments
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participants (3)
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cz＠alembic.crystel.com -
jnc＠mercury.lcs.mit.edu -
lars＠nocrew.org