>
>Subject: Re: Fan for DEC H7861 power supply?
> From: "Chuck Guzis" <cclist at sydex.com>
> Date: Sun, 23 Oct 2005 18:32:14 -0700
> To: cctalk at classiccmp.org
>
>On 10/23/2005 at 9:22 PM Sridhar Ayengar wrote:
>
>>If it has the same CFM rating and the same wattage, what does it matter?
>
>Noise level, maybe, but who cares?
>
>Cheers,
>Chuck
>
What changes is the ability to push a given CFM against a head
(backpressure).
As to who care's? Officially not I. Unofficially as someone that's
got one running and all, cooling is life for electronics. Anything
running nearly 200W of DC is going to need a little breeze lest it
become a pizza oven.
There are alot of boards that will live longer and all if there is
enough air passing over them. It's a good thing.
Allison
Jim Battle <frustum at pacbell.net> wrote:
> I have something that you want? Too bad, it's mine. I'm not sharing.
I never said that I'm not sharing! I just can't say who gave me my copy
of the VAXBI spec to protect that person, but s/he has told that s/he
has no problem with me spreading the spec further. I've got it in
scanned form, so it's too big to go on my FTP site, but I can send you a
copy on paper or CD-R.
MS
Chuck Guzis <cclist at sydex.com> wrote:
> If PC-based emulators are fast enough, why bother with the IC version?
1. I don't want an emulator, I want The Real Thing (tm).
2. A pee sea based emulator requires a pee sea. I refuse to contaminate
my house with a pee sea.
MS
I've been waiting for several years, but finally got the opportunity to
pick up a bunch of classic stuff today (with a garage still left to be
emptied.) Included are two Poly 88s plus a couple of chassis's and
parts, a Lobo Drives LX expansion chassis, a LOT of floppy disks that
look like they came from Lobo Drives when they went out of business, and
a bunch of Apple boards and docs. Some of this stuff (along with a LOT
more) will be available up at VCF. As usual, I'm starting to make a list
of things and will post it a couple of days before heading up to VCF.
Chuck Guzis <cclist at sydex.com> wrote:
> Well, you might have a real core, but there's the problem of providing real
> I/O. Are you going to implement Unibus and QBus too?
No, I'll implement something far better - VAXBI!
MS
I am trying to identify a book that I want to get.
My vague recollection is that it was about IBM or IBM Blue and may have
been about the history of IBM or one of its owners/directors.
I vaguely recall the front cover had a man standing in it.
Does this ring a bell with anyone.
++++++++++
Kevin Parker
Web Services Consultant
WorkCover Corporation
p: 08 8233 2548
m: 0418 806 166
e: kparker at workcover.com
w: www.workcover.com
++++++++++
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are prohibited from disseminating, distributing or copying this e-mail.
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Peter Norton
I have the programmers guide for IBM PC and PS2.
There were others from Peter Norton.
Allison
>
>Subject: Book worms
> From: "Parker, Kevin" <KParker at workcover.com>
> Date: Mon, 24 Oct 2005 09:14:23 +0930
> To: <cctalk at classiccmp.org>
>
>
>I am trying to identify a book that I want to get.
>
>My vague recollection is that it was about IBM or IBM Blue and may have
>been about the history of IBM or one of its owners/directors.
>
>I vaguely recall the front cover had a man standing in it.
>
>Does this ring a bell with anyone.
>
>++++++++++
>Kevin Parker
>Web Services Consultant
>WorkCover Corporation
>
>p: 08 8233 2548
>m: 0418 806 166
>e: kparker at workcover.com
>w: www.workcover.com
>
>++++++++++
>
>************************************************************************
>This e-mail is intended for the use of the addressee only. It may
>contain information that is protected by legislated confidentiality
>and/or is legally privileged. If you are not the intended recipient you
>are prohibited from disseminating, distributing or copying this e-mail.
>
>Any opinion expressed in this e-mail may not necessarily be that of the
>WorkCover Corporation of South Australia. Although precautions have
>been taken, the sender cannot warrant that this e-mail or any files
>transmitted with it are free of viruses or any other defect.
>
>If you have received this e-mail in error, please notify the sender
>immediately by return e-mail and destroy the original e-mail and any
>copies.
>************************************************************************
>
Jos Dreesen <jos.mar at bluewin.ch> wrote:
> While not directly targetting X or A, a rather good set of
> freeware tools for VLSI development is available at :
>
>
> http://www-asim.lip6.fr/recherche/alliance/
I'm well aware of Alliance and it's awesome, but it's for ASICs rather
than FPGAs.
The interesting question is whether the P&R function from Alliance could
be ported to an FPGA. Suppose we found an FPGA for which we have a
complete definition of the routing fabric and configuration image format,
or obtained this information for some common commercial FPGA through
someone with the right connections or through reverse engineering. We
would still need a P&R tool, which is a very major task. I wonder if
the P&R function from Alliance could be adapted to the task. But I don't
know any of the fundamental theory behind P&R in ASICs versus FPGAs to
know whether this could be done or if it's a totally different problem.
Now if we only had the bucks to fab a real chip instead of screwing with
FPGAs... Then we could use Alliance and go completely open source from
start to finish. Does anyone know how much does it cost to fab a chip?
MS
shoppa_classiccmp at trailing-edge.com (Tim Shoppa) wrote:
> I suspect that a FPGA implementation of a VAX would have a
> performance about equal to a 11/780 if done by an average Joe.
Yes, that's about what I expect to get in my first implementation. I
would be quite satisfied with it, for my very first CPU chip design.
MS
