why wasn't I told of this existence of this! I want
one. Or more -
__________________________________________________
Do You Yahoo!?
Tired of spam? Yahoo! Mail has the best spam protection around
http://mail.yahoo.com
Is anything set up for the VCF on Friday night? I know several out of towners are around on Friday. Any plans for a meal or mini-meeting?
I can't make VCF on Saturday - my 10 month grandson is visiting and there are priorities. But Sunday looks good. I'll see you all there then.
Billy
These were spares from a guy who does service for the FAA.
Too bad there wasn't a small chassis as well - sounds like an interesting system, but probably very hard to find SSW for.
Sounds like no one wants the modules.
Chuck Guzis wrote:
> On 30 Oct 2007 at 10:19, Sridhar Ayengar wrote:
>
>> Refresh my memory how those worked? Two processors in lock-step? Three
>> processors in a voting quorum?
>
> Nothing that simple. Special software and hardware. As was driven
> home to me by a Tandem engineer who was also a good friend, the term
> of art used by Tandem is "Nonstop" not "Fault tolerant". A world of
> difference between them. For a very good analysis, check out the
> paper "Why Do Computers Stop and What Can Be Done About It?" by
> Tandem's Jim Gray. It should be somewhere on the web, given its
> importance. It describes in very eloquent terms, the Tandem
> philosophy.
I always found Tandem machines a joy to work on. NSK/Guardian/TACL is a nice OS, the user is nicely close to the hardware (unlike IBM mainframes, for instance). Almost UNIX-like.
The hardware's not too shabby, either. We once had a Tandem engineer over because one CPU on our (16-CPU) machine was constantly giving errors. When he finally decided the best course of action was to replace the CPU, he simply yanked it out. The machine kept running like nothing happened. A new CPU was inserted and in the process monitor you could literally see processes moving from their back-up CPU's back to the newly installed one, which was their primary. All of this without any of the programs running skipping a beat.
They had cute promotional items, too. One of my favourites was a coffee mug with two handles on it.
,xtG
tsooJ
170161400500
__________________________________________________
Do You Yahoo!?
Tired of spam? Yahoo! Mail has the best spam protection around
http://mail.yahoo.com
-------------Original Message:
Date: Tue, 30 Oct 2007 07:38:54 -0000
From: "Jim Attfield" <james at attfield.co.uk>
Subject: WTB/WTT S-100 Chassis (UK/Europe only)
I'm looking for an S-100 chassis and PSU to house my Cromemco Z80/68000
system as I have given up any hope of sourcing one from the US due to weight
and cost of shipping. Preferably Cromemco Z2/Z2D, I will consider
chassis/PSU only as I already have a Blitz Bus backplane. Willing to trade
if anyone would like, I have e.g. 4-FDC, TU-ART, 32K Bytesaver, some RAM,
8-PIO, ZPU etc. I would also like to snag an IMI 20Mb drive to go with my
WDI-II if anyone knows of any. I'm located in the West Midlands (UK) and can
be reached at james AT attfield DOT co DOT UK. Sorry, no fancy sig just yet
:)
If the shipping cost is right I am happy to consider European sources.
Jim
------------Reply:
I have several IMI 20MB (and 5MB) drives, but they're also on the wrong side
of the Atlantic (Toronto). Also, I'm not sure at this point how many are still
working reliably or how many I can spare (if any). I have scrapped a few though,
so if you happen to find an ST-412/506 version (they were used in some PCs)
I could probably send you the PCBs to convert it.
Why not just build a nice custom case & PS?
mike
I'm looking for an S-100 chassis and PSU to house my Cromemco Z80/68000
system as I have given up any hope of sourcing one from the US due to weight
and cost of shipping. Preferably Cromemco Z2/Z2D, I will consider
chassis/PSU only as I already have a Blitz Bus backplane. Willing to trade
if anyone would like, I have e.g. 4-FDC, TU-ART, 32K Bytesaver, some RAM,
8-PIO, ZPU etc. I would also like to snag an IMI 20Mb drive to go with my
WDI-II if anyone knows of any. I'm located in the West Midlands (UK) and can
be reached at james AT attfield DOT co DOT UK. Sorry, no fancy sig just yet
:)
If the shipping cost is right I am happy to consider European sources.
Jim
This outbound email was scanned by Norton AntiVirus 2007 when transmitted
and all reasonable precautions have been taken to ensure that this email was
free of current known viruses and other malware when sent. Please be aware
that between here and you are an indeterminate number of email relays so you
should not rely wholly on this and ensure that you have adequate up-to-date
protection against viruses, worms, spyware and trojans etc. The sender can
not be held responsible for any undesirable elements or malware in a
received email sent by him. Please note that if your reply originates from
GOOGLE, HOTMAIL, MSN or YAHOO it may never reach me as these domains are
blocked.
Does anyone happen to have the BIOS image from an IBM PC AT (with
BASIC) rattling around that they could email to me? It'd save me a
considerable amount of time digging through my own very dusty
archives to locate a copy.
Just the image read from memory is fine--I can odd-even it here for
burning.
Thanks,
Chuck
