I'm rather new to the mailing list, and I poked through some of the
previous messages on the site, but didnt see this one directly answered.
I live in texas, and know of a few here haaug meet, first saturday, san
antonio's 2nd sat, but is there a place where I can find out more of them
located in this area (texas, oklahoma, arkansas, lousiana)? I figure here
would be the best place to ask, because I'm really not interested in
buying pc stuff, but love old unix equipment, and misc electronics. Any
huge festivals that I should be going too every year that I'm not? (I go
to trenton nj)... what about surplus places (I love to find junk at places
that take computers to scrap them for metal... I get some awesome deals
there)? Any help would be nice :)
Thanks,
jon
Well, my latest acquisition finally arrived from England (why are all the good
things in Europe...). Anyways, I finally have a Hollerith Manual Card
Punch. You can see a picture of one at the Computer Museum of America
web site: http://www.computer-museum.org/collections/hollerith.html
Mine was made in england, by International Computers and Tabulators Limited.
Does anyone know if that company was a part of what became IBM, or did
they just make an unauthorized copy of the machine?
My punch is slightly different that the one at that web site, in that it
never had a nameplate below the keys, and the uppermost button on the picture
isnt a part of my card punch. Basically, you have the 12 keys that punch the
12 hole positions and advance the card one row, with a button to inhibit the
advance so you can multi-punch the same row (or allows skipping a row), and a
second button that releases the remainer of the card. The button that is
missing in the design of the punch I have must not have been very useful, as
I cant imagine what else a person would need to do.
There is an adjustable card stop, so that you can set the punch to allow you
to skip any number of initial columns on each card automatically. The chad
just drops to the ground underneath the punch.
If I can find some information about this punch, i'll make a nice web page
about it.
-Lawrence LeMay
<http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItem&item=2002926621>. He
has no docs, drives or software with it. Damm! and I just threw out a drive
chassis that went with this one! FWIW it uses CDC drives like these
<http://www.classiccmp.org/hp/mds-800/cdc-dr-f.jpg>. I don't know if
Shugart drives can be made to work with his controller cards or not But
Intel uses a different connecting cable and a different set of controller
cards for the Shugart drives. One the MDS-800s, the Shugart drives uses
M2MFM encoding that's not capable with any other system that I know of but
the CDC drives use MFM encoding and the "standard" CPM disk format aka IBM
3470 format.
Joe
On February 14, Richard.Sandwell(a)roebry.co.uk wrote:
> Hey, Doc - off list to save everyone's bandwidth... What do you think to an
> RS/6000 E30? I'm going to have a look at one tomorrow for not_much_money. I
> have 2 questions - is it MCA or PCI?
> And is the memory proprietary - or just standardish stuff?
>
> Thanks in anticipation of your wise word :)
Dontcha just hate Reply-To: headers? I have my mailer filter them
out. ;)
-Dave
--
Dave McGuire
St. Petersburg, FL "Less talk. More synthohol." --Lt. Worf
> -----Original Message-----
> From: Clint Wolff (VAX collector) [mailto:vaxman@earthlink.net]
> Actually, there are FIVE formats: DAT, DDS, DDS-2, DDS-3, and DDS-4.
> I don't know the exact differences between DAT and DDS, but most
> drives won't accept a DAT tape...
I thought DAT was the audio format (48Khz, 16[?}bit, up to 4 channels),
and the tapes are pretty identical to DDS?
I do have a DDS (DDS2, I think) drive that will read/write audio DAT in
my Indigo2.
Chris
Christopher Smith, Perl Developer
Amdocs - Champaign, IL
/usr/bin/perl -e '
print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n");
'
> -----Original Message-----
> From: Tothwolf [mailto:tothwolf@concentric.net]
> That would work well if all the tape drives that use the
> floppy interface
> followed the rules, but not all do. I guess it would be
> possible to build
> a board with some logic chips that could isolate individual
> drives from
> the bus, but I think it would be much easier for now to only
> connect one
> drive at a time.
Do you mean to say there are floppy-tape systems that ignore
DS? How do they work?
Chris
Christopher Smith, Perl Developer
Amdocs - Champaign, IL
/usr/bin/perl -e '
print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n");
'
> -----Original Message-----
> From: Sellam Ismail [mailto:foo@siconic.com]
> On Thu, 14 Feb 2002, Fred Cisin (XenoSoft) wrote:
> > A write-only device.
> What's the purpose of a write-only backup device???
Um... he means that it's not very reliable. A polite way of
saying that you'd be better off backing up to a _real_ write-only
device, like a terminal, or your system's "null device." :)
Chris
Christopher Smith, Perl Developer
Amdocs - Champaign, IL
/usr/bin/perl -e '
print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n");
'
A couple weeks ago, I was given the following manuals and thought I'd see if
anyone wanted them, otherwise they're getting dumped.
- 3 Teletype corporation binders labeled "Technical Manual" -- there's more on
the labels, but I don't want to type it all out. If you're intested I'll
write it all down and post it. These are from ~1974.
- IBM Customer Engineering Manual of Instruction for "24 card punch" and "26
printing card punch" (appears to be from ~1962)
- IBM Personal Computer Professional Graphics Display Technical Reference
(includes specs, logic diagrams, etc) (1984)
I don't own, nor do I plan to own, any of this equipment, so I thought I'd
pass these on to anyone interested... you'd need to pay shipping but that's
it. Though, if you have anything interesting in the old-UNIX-computer-parts
realm, I wouldn't mind trading either :)
- Dan Wright
(dtwright(a)uiuc.edu)
(http://www.uiuc.edu/~dtwright)
-] ------------------------------ [-] -------------------------------- [-
``Weave a circle round him thrice, / And close your eyes with holy dread,
For he on honeydew hath fed, / and drunk the milk of Paradise.''
Samuel Taylor Coleridge, Kubla Khan
On Feb 14, 6:53, Doc wrote:
> On Thu, 14 Feb 2002, Zane H. Healy wrote:
>
> > >There are currently 5 DAT formats (DDS, DDS-1, DDS-2, DDS-3, and
DDS-4)
> > >and all are backward compatible.
> >
> > But, can a drive from manufacturer "A" read a DDS-1 tape written on
> > manufacturer "B's" drive? It's been my understanding that sometimes
even
> > different model drives from the same manufacturer can't read the same
tape.
>
> I've never seen that with either 4mm DDS-x or with 8mm DAT formats.
> We do classroom loads of RS/6000s from tape quite often, making
> tapes on, and installing from, a very wide assortment of drives. I've
> never seen a load fail if the drive was rated for the tape format.
Nitpick alert: DDS = DDS-1 (ie, it's the same thing -- originally called
DDS but now sometimes called DDS-1 so that it's clearly not one of the
later versions). So there are only 4 formats, not 5.
Nitpick 2: 8mm is not DDS or DAT. It's Exabyte videotape.
--
Pete Peter Turnbull
Network Manager
University of York
Hi --
I have no idea if this link is still active, but if it is, I am
interested in knowing if you still have any USS Altair stuff -- such as
the data plate mentioned. My email address is:
stonecipherca(a)state.gov
Any info would be appreciated. Thanks --
Charlie
