Don't suppose anyone's come across anything that'll attempt to fix a
corrupt .Z (Unix compress) file, have they?
I've got a 40MB compressed tar archive here, but uncompress barfs after
the first 23MB - it'd be nice if there was a way of skipping over the
duff bits if possible and reading *something* from the last 17MB!
cheers
Jules
But if you do:
If you have the time and interest to wander out to York U on a Friday
morning: I've been asked to make a presentation there.
My theme (if I don't wander too far off the subject) is "Computer
hobbyists of the 70s and 80s" - mostly from a Commodore user
perspective, of course. It runs about an hour.
This is in connection with a computer museum at York; a bunch of older
computers (including lotsa Commodores) will be on display.
A little more information can be found at:
http://www.cs.yorku.ca/museum/events/events.htm
(gosh, I think they must have retouched my photo). And the YorkU
host, Zbigniew Stachniak, says:
>> Since our history of computing lecture series event is open to anyone,
>> you are, of course, free to bring with you anybody who is interested
>> in your lecture.
>
>
So come along if you have time and inclination (like the guy who
leaned his grandfather clock agains the wall), and we'll all revise
history together. :-)
--Jim Butterfield
Jim "the other Jim" Brain.
--
Jim Brain, Brain Innovations
brain at jbrain.comhttp://www.jbrain.com
Dabbling in WWW, Embedded Systems, Old CBM computers, and Good Times!
In case anyone is interested:
CJOH news in Ottawa is running a segment on local collectors
of classic computers. The camera crew was here this afternoon,
and they visited Mike K's on sunday.
It will air as a segment on the "Tech Now" section of this Sunday
6:00pm newscast (March 6). Local Ottawans can tune CJOH directly,
anyone with ExpressVu (Canadian satellite) should be able to
get it on channel 196 at the above date/time.
Regards,
Dave
--
dave04a (at) Dave Dunfield
dunfield (dot) Firmware development services & tools: www.dunfield.com
com Collector of vintage computing equipment:
http://www.parse.com/~ddunfield/museum/index.html
The PDP-1 Restoration Project is still far from complete, but we hit
a major milestone tonight. When we last tried to run Spacewar,
the sun and player ships would not display correctly, though the
starfield and torpedos seemed to be fine. We ran the DEC instruction
diagnostics and they failed on the shift/rotate test, though all
the diagnostics had passed a few months earlier.
This week we wrote a more specific diagnostic program and determined
that left shifts and rotates of the I/O register were not doing anything,
though right shifts and rotates of the I/O register were fine, and all
shifts and rotates of the accumulator were fine. After a little study of
the print set, we identified two system modules that could cause the
observed behavior. We tried replacing one of them, a 1607 pulse amplifier.
After replacing the 1607, our own diagnostic and the DEC diagnostic
both passed. Some of the team wanted to go home without trying out
Spacewar, but the rest of us nagged until they gave in. We loaded it,
and it ran correctly.
Spacewar on the real Type 30 display with long persistence phosphor
is a thing of beauty!
Some of the tasks remaining to be done:
* build new Spacewar control boxes
* continue repair/testing of Soroban console typewriter
* adjust Type 30 display to factory specs (linearity is poor)
* adjust paper tape reader sensitivity/threshold
* diagnose & repair suspected flaky memory "module" 0
* voltage margin checks, run all diagnostics
* install new belt and test BRPE tape punch
Eric
>From: "Eric Flanzbaum" <elf at ucsd.edu>
>
---snip---
>Given what others have posted in this thread about the Cat, I'm under the
>impression it is basically a editing machine (with some fancy features
>built-in), along with a back door into Forth. Almost a glorified word
>processor, if you will.
>
>Was there much (if any) 3rd party software developed for it -- which
>expanded beyond its native capabilities?
>
>
Hi
Not that I know of but there are others that might
have more information on this. From my playing with
it, you can not directly execute code from the disk.
Even to run Forth, you have to select the code from
the screen before it will execute. This isn't hard
to do but not the same as running a program on the
disk.
There might have been some way to do it but the
Cat only seems to use the disk for text storage.
Once in Forth, I believe one can take over the machine
and treat it like a normal processor. I'm sure
there must be a trap-door in there someplace to
load code from disk but I've not explored what
can be done from Forth, other than, when I first
got it, to look through the memory to determine where
the ROM images were.
I do know one of the fellows that wrote code for
it and I've been meaning to pick his brain some
time. For the curious, it is a great machine. There
is so much in there to explore. and even a way
to do it ( Forth is like a super monitor ).
Dwight
Ron Hudson wrote:
> sounds to me like emacs is to lisp as cannon cat is
> to forth, at least to some extent.
It does have that ring to it, huh?
Given what others have posted in this thread about the Cat, I'm under the
impression it is basically a editing machine (with some fancy features
built-in), along with a back door into Forth. Almost a glorified word
processor, if you will.
Was there much (if any) 3rd party software developed for it -- which
expanded beyond its native capabilities?
Does anybody know why my list subscribtion has been cancelled?
I wasn't receiving any messages since February 26. Now I have subscribed
again. But I don't know what happened.....
Philipp
You seemed to have left out a few words so I thought I might help
a little.
>From: "Jim Isbell, W5JAI" <jim.isbell at gmail.com>
>
>No, this is NOT a PC support list, it is a general list for computer
^
classic
>talk which is what my post is. If you need to be "on topic" go to the
^
not
>cctech list.
>
>
Hi
This is an un-moderated "clasic computer" list that
tolerates some off topic post. Also, it is self
regulating in that many off topic post may be
flamed. Members should refain from posting replies
to post that, if allowed to continue, damage the list
in general. Even when they know the answer.
I'll admit that I've not always been
able to stop myself but many times I have.
What to do with Windows XP is way outside of topics
covered under clasic computers. The worst of it
is that this list most likely has only a small percentage
that are up on dealing with XP. Most just use it
only when needed and for nothing else.
We are not trying to turn you off towards the list
but help you realize that there are better places
to handle your particular problem.
Dwight
On Mar 3 2005, 10:03, Tom Jennings wrote:
> On Thu, 2 Mar 2005, Pete Turnbull wrote:
>
> > Probably because Jules' mailer is inserting an unecessary
"Reply-to:"
> > header (pointless, since it's supposed to be used only when you
want
> > replies to go to somewhere other than the "From:"), and then
mailman is
> > applying the principle of "least modification" and *appending* the
> > classiccmp address, rather than replacing the one Jules' mailer put
in.
> >
> > I've noticed this with posts from one or two other listmembers.
>
> I think Jay's right -- mailman may have changed, but it's not
> necessarily incorrect. There are few subtleties involving
> To:/Reply-To: processing but it's one of those things a lot of
> MUAs make configurable. Pine's "reply-always-uses-reply-to" in
> feature-list, for example.
I'm not suggesting there's anything wrong with mailman -- in fact,
applying "least modification" is The Right Thing. You are only allowed
one "Reply-to:" line per message, and mailman is quite properly not
discarding existing information. I just don't think any MUA should
create a "Reply-to:" if it's the same as the "From:" or "Sender:". As
for Pine using "Reply-to:" for replies, that's what the RFCs say you
*should* do if a "Reply-to:" is present; it's purpose is purely to
override the "From:" when replying.
--
Pete Peter Turnbull
Network Manager
University of York
