I'd love to write a program to "OCR" punched card images. Now, if
I only had some spare time. :-)
Scanners are cheap and ubiquitous. You could lay several cards on the
scanner at once, perhaps placing a specially-colored paper on the
normally white reflective lid, and presto - like chroma-key on video,
you can easily "see" the borders, index notch and holes. I wonder if
any of today's "paper port" auto-feeding cheapo scanners would handle
a punched card - I don't see why not.
It could save the card data in Jone's proposed file format. One advantage
of this system would be that it could handle aged cards that some physical
imperfection (like dents from rubber bands, folds, worn edges, etc.) that
might jam a card reader.
- John
Jefferson Computer Museum <http://www.threedee.com/jcm>
Don't write to me on this, write the the fellow below if this interests
anyone.
--------------------------------------------------------------------------
Cliff Boyer <homeline(a)ezl.com>
Alton, IL USA - Tuesday, April 21, 1998 at 00:11:30
I for got something a minute ago.
I found in a 2nd hand store a book that may be of some intrest.
It is titled "The IBM 5100 PORTABLE COMPUTER, A Comprehensive
Guide For Users and Programmers". Hard Bound, Published 1977.
Deals with BASIC & APL languages' and basic overview of computer.
Excellent condition.
I don't need it, so it's first come first served!
$5 would cover book & shipping!
--------------------------------------------------------------------
Russ Blakeman
RB Custom Services / Rt. 1 Box 62E / Harned, KY USA 40144
Phone: (502) 756-1749 Data/Fax:(502) 756-6991
Email: rhblake(a)bbtel.com or rhblake(a)bigfoot.com
Website: http://members.tripod.com/~RHBLAKE/
ICQ UIN #1714857
AOL Instant Messenger "RHBLAKEMAN"
* Parts/Service/Upgrades and more for MOST Computers*
--------------------------------------------------------------------
Wasn't there someone on here a while ago looking for 1702's? Whoever that
was, you might want to try Jameco(http://www.jameco.com), the catalog I
have shows them at $1.95 each, but I don't know how many they have left, if
any...
--------------------------------------------------------------
| http://members.tripod.com/~jrollins/index.html - Computers |
| http://www.geocities.com/Area51/Lair/1681/ - Star Trek |
| Orham(a)qth.net list admin KD7BCY
|
--------------------------------------------------------------
I have just got a Sun 2 clone workststion (Sun boards in an unbranded box)
and it won't boot.
If any one can decode the 'heartbeat' LEDs here is the code.
Looking down at the edge of the CPU board:
=============[Empty connector]=========[oxxx ooox]====================
where x is LED off and o is LED on.
I would like to mend this myself if possible. If it is going to require
component level diagnosis and repair then please bear in mind that I
haven't used a soldering iron or meter in anger since I was mending
televisions at school - when they all had 405 lines on the screen and
valves.
Regards
Pete
Tony Duell wrote:
> Punched cards have one major design bug IMHO that's not shared by paper
> tape. There's no 'column reference' on a card. On a tape, you can strobe
> off the sprocket track, but alas on a card a totally unpunched column is
> valid (=a space character).
>
> My Documation M200 uses the leading edge of the card as a reference. It
> then counts pulses from a toothed wheel/pickup head on the card roller
> shaft to deteremine where the columns should be.
>
> It's therefore almost impossible to make a hand-pulled card reader.
I rather liked Allison's long array of photodetectors (of whatever
flavour) to tell you where the leading edge is.
But why not have the same wheel to determine the position, but the card
turns the wheel rather than vice versa? You lose the non-contact
element of hand pulling, but you don't get motors chewing delicate
cards.
Philip.
-----Original Message-----
From: Tony Duell <ard(a)p850ug1.demon.co.uk>
To: Discussion re-collecting of classic computers
<classiccmp(a)u.washington.edu>
Date: Tuesday, 21 April 1998 12:27
Subject: Re: 5150
.
.
>It can be a little depressing to read a manual for a machine that you
>know you'll never own or even see (like the PDP6 schematics that I
>downloaded a couple of years ago). But I still think it's better than
>knowing nothing about the machine/
Thats why I keep my NeXT book!
On Apr 20, 14:06, Max Eskin wrote:
> Could someone tell me what the configuration of individual gates
> is (one of them, at least) for binary addition (or provide an EASY
> TO FIND reference)?
This sounds like a homework question... Well, I suppose all classic computers
have adders in them. You want to look up "half-adder" and "full-adder". A
half-adder adds two binary digits, to produce a sum output and a carry output.
A full adder is, not surprisingly, two half adders, wired so that it also has
a carry-in. You can make a half-adder from an XOR gate and an AND gate, though
that's not exactly how they're usually implemented. How to make a multi-bit
adder with look-ahead carry is left as an exercise for the reader :-)
--
Pete Peter Turnbull
Dept. of Computer Science
University of York
<Boy I'd pay $100 for a working PDP11/23 with RL02's (at least one workin
<and bootable).
<
<Bill
get out a scrounge around. 11/23s are common as house flies. you should
be able to find one for free that is usable. The common problem is you
can find just the cpu box (cpu, ram, IO, maybe disk controller) but no
drives.
The thing is with RX02s for $100 is possible, with RL02s no way. RL02
drives used go for more than that alone. I'm looking for a RL02 drive
myself as I only have one, they are scarce and expensive.
SCSI boards and eithernet cards same thing, expensive. CPU boards, maybe
$20-40.
The problem is most cards compatable with an 11/23 are also compatable
with most of the qbus VAX systems other than memory(usable but far too
slow and limiting in other ways.).
Allison
Could someone tell me what the configuration of individual gates
is (one of them, at least) for binary addition (or provide an EASY
TO FIND reference)?
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No connection to this person whatsoever. Thought this might be of
interest to some.
>
>I have an Adam computer that I want to sell. It is in perfect working
>condition. All the original equipment including the box is intact.
>Serious offers can find me at
>
>mtruman(a)usa.net
>
>Mike
>
>
>-----== Posted via Deja News, The Leader in Internet Discussion ==-----
>http://www.dejanews.com/ Now offering spam-free web-based newsreading
-Bill Richman
bill_r(a)inetnebr.com
http://incolor.inetnebr.com/bill_r
(Home of the COSMAC Elf Simulator!)
>
>
> <Boy I'd pay $100 for a working PDP11/23 with RL02's (at least one workin
> <and bootable).
> <
> <Bill
>
> get out a scrounge around. 11/23s are common as house flies. you should
> be able to find one for free that is usable. The common problem is you
> can find just the cpu box (cpu, ram, IO, maybe disk controller) but no
> drives.
Up there maybe... down here in NJ they're rare. Sun boxes are
around (Sparc), I even saw DECstations, RS6000's but no good looking
Vaxes or 11's. I think the area scrapped most of 'em 4 years ago.
At this weekend's Trenton Fair (which used to have
8's, 11's and Vaxes -- nothing below a Microvax chassis...).
And this was a big DEC area until the late 80's. I worked it for years.
>
> The thing is with RX02s for $100 is possible, with RL02s no way. RL02
> drives used go for more than that alone. I'm looking for a RL02 drive
> myself as I only have one, they are scarce and expensive.
>
> SCSI boards and eithernet cards same thing, expensive. CPU boards, maybe
> $20-40.
>
> The problem is most cards compatable with an 11/23 are also compatable
> with most of the qbus VAX systems other than memory(usable but far too
> slow and limiting in other ways.).
>
> Allison
>
I turned down an 11/34 with RL02 for $25.00 four years ago because the
OS's weren't easy to come by and the boxes were larger than I could
transport in my compact car (at the time I didn't have my good old
DECwagon available).
Ah @!#$%^&. I could sure use it now.
This seemed to be the year of the $10 MacII at the show. I picked
up some Mac stuff for fun... but I'd love to populate my VT103 out.
Bill
+---------------------------------------------------------------------------+
| Bill/Carolyn Pechter | 17 Meredith Drive | Tinton Falls, New Jersey 07724 |
| 908-389-3592 | Save computing history, give an old geek old hardware. |
| pechter(a)shell.monmouth.com |
+---------------------------------------------------------------------------+
I made a small neural net, non-learning, in Visual Basic (hey! it's
easy!), available at alt.ne.mediaone.net/zeus334/neural.zip.
Also, there was just a short segment on TLC on truck collecting.
Very interesting. Maybe I'll collect old trucks AND old computers!
This was talking about a new englander who collected big trucks.
His favorite was a chain drive 1932 german truck...
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This is the case for the april early birds from what I saw last year.
As the season progresses (MIT is every month) the mix changes.
< He also had an 11/23 he wanted to sell for $100 and _wouldn't_
< budge. He told me they were 'classic' computers and could
If it were an 11/20 or 11/05 it's collectable.
Numb is correct. 11/23s are common as house flies and though they are very
classic and somewhat desireable for pdp-11 hackers he's out of his mind.
Last year there was someone there doing same and I ended up taking it home
for free as he couldn't bring it back. Now consider this he was offering
an 11/23 complete with RX02 and 2meg memory, plenty of serial IO and TWO
complete copies of RT-11v5, two sets of diagnostics disks and two RT11
doc sets.
If he parted it out and sold it to one of the used DEC resellers he might
get 100$ for the peices total.
<PS - I would have paid up to ~$20 for the 11/23, but $100?????
thats about right IF it's at least a complete CPU/mem/io/disk! With some
software and known operating $50 may not be out of line. more than that
it better be pristine, FULL COMPLETE DOCS and actually running.
Allison
If the modem is the thing w/ 5 pin DIN socket, I have one.
What is Data General's number?
> does it have the built in modem? That's the only option I don't have
for
>mine. Also, if you could gently remove the disk drive buttons and send
them
>my way, I'd be appriciative. Mine broke off.
>
> -spc (You might want to call Data General and see if they have
replacement
> LCD screens, or at least where you might get some)
>
>
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On 15 Apr 98 at 1:05, Tony Duell wrote:
> [IBM 5150 cassette port]
>
> > I was thinking along the lines of an audio interface of some kind. From the
> > above it seems possible, hooked to a synth, unless speed would be a problem.
>
> Well, audio output (single voice) would be trivial. After all, it was the
> same signal that drove the speaker (well, there was an extra gate in the
> speaker path).
>
> Other than that, it probably wouldn't be that useful...
>
> I wonder how hard it would be to convince the original IBM Async card's
> current loop interface to talk to a MIDI device... _Might_ need a change
> of Xtal or a strangely wired jumper. I will look at the schematics
> sometime...
>
> Did any of the clones of the Async card have the current loop interface?
> For that matter, did anyone ever use it for anything?
>
> -tony
>
When it comes to the asynch / synch interfacing I'm out of my depth. It's
something I've been going to study up on tho. I've had an old Phillips Micom
WP for some time which apparently was capable of communication protcols
interfacing and I've wanted to retrieve some data on it , altho now I might be
able to pull it off the 8'' disks with the TRS mod ll . Another project in
waiting : ^ )).
In exploring the programs on the 5150's Hard-card I found two small programs
>from the same company (PLUS) that made the hardcard. One was light.com and the
other sound.com parameters were light= on/ off , and sound = on / off . Since
the h-c itself had no external connectors, I'm wondering whether these are for
the cassette port. This 5150 was also configured for 2 serial and 2 parallel
which would square with the serial / para on the int.modem and the printer port
on the Herc. leaving one serial unaccounted for. The only other connector is
the f 37 pin ext. on the fdd controller card. ( for an external drive ? ) QUE's
Upgrading and Repairing P.C.'s v.5 (BTW an excellent book with the most
extensive info on PS2 s I've seen -V.5 only) doesn't mention this port tho it
has a lot of detail on the 5150 and adapter cards.
ciao larry
lwalker(a)interlog.com
This is bizarre...
This RSX was origionally in an 11/73. I had it in an 11/83.
BOO was running REAL slow. I interrupted it after a 5-hour run.
I swapped the KDJ11-B with an 11-A, reloaded, and now BOO
is running at a faster pace, it hits the drive every 10 seconds.
I just now started it.
Maybe there's a bug in RSX, or my 83 is acting bizarre?
-------
On Apr 20, 6:51, Daniel A. Seagraves wrote:
> [Copy with BRU and it...]
>
> How do I do that? BRU is here, but when I tried to get it to go,
> it said PROTECTION VIOLATION.
I think that means you're trying to do something to a disk that is mounted when
it shouldn't be, or you've not given the right switch, or given one that's
inappropriate. If I'm right, I think you want to be copying from a mounted
running DUx: to an unmounted but loaded DL0:, which BRU will want to
re-initialise. If so, the command is something like BRU DU0:/MOU DL0:/INI, or
safer would be to run BRU and enter the disk names and switches at the prompts.
Sorry about all the "if"s but I did warn you I'm not an RSX expert :-)
--
Pete Peter Turnbull
Dept. of Computer Science
University of York
This is the first time I've been to an electronics flea market, so I
don't know how it was, but I was disappointed. I came late, and about
1/2 the stuff was oscilloscopes, another 1/4 was Mac CPUs, and an
8th was PC network cards. Everything was priced at or above market
value (almost). I will still go next time, though.
There were a bunch of "IBM RT" units. These were enormous PS/2 like
things. What were they?
I could have gotten a Zenith XT laptop for $10, but I opted for a
free Data General One being used as a wheelchock. It's in good
condition, but the LCD is smashed. I think I will hang it on the wall.
Does anyone have any ideas what I should do with the rest of the
machine? Does anyone have replacement LCDs?
PS. I would have gotten a shrinkwrapped copy of MacOS 6.0.7 and A/UX,
but the guy changed his mind about selling it.
______________________________________________________
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Two questions: a) what is a channel F?
b) What is the ISBN# for the haddock book?
>I also got another Fairchild channel F brand new and apparently never
used.
>And a Laser 128 with power supply and external disk drive. Oh and a
copy of
>the Haddock.
>Francois
>-------------------------------------------------------------
>Visit the Sanctuary at: http://www.pclink.com/fauradon
>-----Original Message-----
>From: Daniel A. Seagraves <DSEAGRAV(a)toad.xkl.com>
>To: Discussion re-collecting of classic computers
><classiccmp(a)u.washington.edu>
>Date: Sunday, April 19, 1998 8:18 PM
>Subject: Strange 11/83 behaviour...
>
>
>>This is bizarre...
>>This RSX was origionally in an 11/73. I had it in an 11/83.
>>BOO was running REAL slow. I interrupted it after a 5-hour run.
>>I swapped the KDJ11-B with an 11-A, reloaded, and now BOO
>>is running at a faster pace, it hits the drive every 10 seconds.
>>I just now started it.
>>Maybe there's a bug in RSX, or my 83 is acting bizarre?
>>-------
>>
>
>
______________________________________________________
Get Your Private, Free Email at http://www.hotmail.com
I'm cross posting this here as I know someone here knows what this guy
needs and can do a direct email to him about his problem. There may not
be anyone that knows what he needs and he might be tempted to "throw
out" the equipment if he doesn't get a response.
--------------------------------------------------------------
Rich Gough <regough(a)connectexpress.com>
Seattle, WA USA - Monday, April 20, 1998 at 02:21:27
I have a bunch of 8" diskettes, CP/M format over 10 years
old. Were made on a Lobo Max-80, now in my mom's basement.
Replaced clock battery, still couldn't get it to boot last
year when I tried to start it for the first time in years.
Anyone know of a place in Pittsburgh, PA that can copy 8"
diskettes onto 3.5"? Thanks, will be going there in a
couple of weeks. Rich
--------------------------------------------------------------------
Russ Blakeman
RB Custom Services / Rt. 1 Box 62E / Harned, KY USA 40144
Phone: (502) 756-1749 Data/Fax:(502) 756-6991
Email: rhblake(a)bbtel.com or rhblake(a)bigfoot.com
Website: http://members.tripod.com/~RHBLAKE/
ICQ UIN #1714857
AOL Instant Messenger "RHBLAKEMAN"
* Parts/Service/Upgrades and more for MOST Computers*
--------------------------------------------------------------------
Ive had this posted in the past but these are really getting in my way:
*Tektronix 7612D programmable digitizer (scope w/o a screen) with two
7A16A plugins. No manuals or cables but it appears to be in terrific
shape otherwise. $150 plus shipping or will consider trades.
*Kontron KLA64 64 channel logic analyser - 2 complete units, cables,
manuals, covers, software, etc. They also have an optional unit
installed internally. Includes Axiom video printer. All items go as a
package - $325 plus shipping. Sorry no trades and will not separate.
Total weight about 160 lbs for everything.
Can email detailed info to those interested. I bought these in an
auction lot and the above pricing is what I have into them. I bought the
auction lot to primarily obtain a digital oscilloscope for my shop but
the above items are R&D oriented and realy have no use in my repair
shop. Both are still supported by repair, calibration and parts outfits
as well as the manufacturers. I have sources for the manual for the Tek
7612D and plugins as well so you don't need to be concerrned that you'll
not be able to work it without a manual. The manuals for the Kontrons is
very detailed and is from setup and use to parts and adjustment.
I'm trying to be as discrete as possible about posting these and I'm
sure some people are tired of seeing it come back up but there are new
people to the list that may not know of them and possibly be interested.
Please reply direct to me, not to the list.
--------------------------------------------------------------------
Russ Blakeman
RB Custom Services / Rt. 1 Box 62E / Harned, KY USA 40144
Phone: (502) 756-1749 Data/Fax:(502) 756-6991
Email: rhblake(a)bbtel.com or rhblake(a)bigfoot.com
Website: http://members.tripod.com/~RHBLAKE/
ICQ UIN #1714857
AOL Instant Messenger "RHBLAKEMAN"
* Parts/Service/Upgrades and more for MOST Computers*
--------------------------------------------------------------------
On Apr 19, 20:12, Daniel A. Seagraves wrote:
> Subject: Oh, s**t. Someone tell me I'm wrong...
OK :-) You're wrong :-)
> To talk to the RL02, I had to UNLoad the DY: driveer and LOAd teh DL: driver.
> This means that RL support isn't in the montior.
Not exactly, it may just mean that the driver isn't loaded by default. None of
the drivers are "in" the monitor, they're all loaded (some with the system
image, some not).
> Since I'm switching boot
> devices to one not in the monitor, I have to re-SYSGEN RSX-11M.
> But, I don't have Sysgen or HRC, so I'm screwed, right?
Not necessarily. SYSGEN recreates the whole system from the source code. All
you need to do (assuming the original was built with suitable options) is to
get it to reset its pointers, in a manner of speaking. You won't have HRC
unless it's an RSX11M-plus system.
> That would be why BOO looped forever on both systems, the monitor was told to
> boot a device it had no support for.
> Does this sound correct?
I don't think so.
I'm not an expert on RSX, but I've done 4 or 5 sysgens -- though it was a few
years ago. The drivers were probably all built at the same time -- and
therefore with the same options -- as the rest of the system. Take a look at
the dates/times on the xxDRV.TSK and RSX11M.TSK files in [1,54] to be sure.
The RSX11M.SYS file should be much bigger, and have a later time, than the
RSX11M.TSK file. What you're probably seeing, is that the system was built
with a certain amount of space allocated for drivers, but only the ones
originally required are loaded with the system image by default, and to get
space for another, you need to unload one.
As for the BOOt problem, I'd guess you copied the files using PIP instead of
BRU. Is that right? If so, many of the files won't be in the same places on
the disk. That will confuse RSX, which has the disk addresses of some
essential things in the RSX11M.SYS file. (At least, I think it's that file,
it's been a while...) Also, PIP has possibly not copied the correct file size
-- by default, it discards unused blocks, ISTR. That will kill RSX11M.SYS,
which has extra blocks for the swap space. The other thing PIP won't do (by
default, unless you use the /CO switch) is to ensure that copies are
contiguous, though if you copied onto an empty disk, that probably won't be a
problem. You can tell if a file is contiguous (all the blocks together, in
sequence) by looking to see if there's a letter 'C' just before the date in a
long directory listing; .TSK and .SYS files have to be contiguous.
If you copy with BRU, it takes care of those things, and possibly leaves the
system in such a state that the next *software* boot will sort things out.
There are certain permutations of disk drivers that share boot blocks, which
saves you some of the effort of re-generating the boot setup, but I can't
remember if DU and DL are in that group.
[digs out notes]
If you use PIP, you'll need to recreate the RSX11M.SYS image on the new drive,
while still running the system from the old one:
ASN DL0:=SY:
ASN DL0:=LB:
SET /UIC=[1,54]
PIP RSX11M.sys/NV/CO/BL:<nnn>=RSX11M.TSK
where <nnn> is usually (memory size x 4) + 2. If you express that as a decimal
number, you have to enter it with a decimal point after the digits otherwise
PIP will think you mean octal. That's for a mapped system; change [1,54] to
[1,50] for unmapped.
Then you'll need to re-VMR the system, you can specify what drivers are to be
LOAded at boot time, what memory it has, etc. There's possibly a file called
SYSVMR.CMD or similar, which already has a string of commands in it to load
drivers; edit that to suit.
After you've run VMR @SYSVMR you need to software boot the new system and SAVe
it (you may need to type "G" at the prompt, and you need to SAV /WB to make it
hardware bootable).
--
Pete Peter Turnbull
Dept. of Computer Science
University of York
In a message dated 98-04-19 17:15:38 EDT, you write:
<< There were a bunch of "IBM RT" units. These were enormous PS/2 like
things. What were they? >>
model numbers were 6150 and 6151. i have the desktop form factor. basically it
was a risc6000 ancestor. isa bus, but had proprietary adaptor cards with 16meg
max. ran AIX and something else. mine powers up, but i do not have the special
keyboard that's required to use it. i believe they announced in 1990 so not
quite classic yet. i can probably dig up some info at work about them if
someone REALLY wants me to.
david
> I just got myself a Diamond TrackStar Apple//-in-a-PC board. What
little
>info that I could find says that you can hook an Apple floppy drive to it.
>However, in two places, the info says that it takes a standard Apple
floppy,
>and then it says a Unidrive.
If you only have a Uni-Drive and you don't have the adapter, you can open it
up, disconnect the current cable and plug in the old cable. That's what I
did. The 19 pin cable plugs into a 20 adapter inside the drive.
-- Kirk
Just put this together.
To talk to the RL02, I had to UNLoad the DY: driveer and LOAd teh DL: driver.
This means that RL support isn't in the montior. Since I'm switching boot
devices to one not in the monitor, I have to re-SYSGEN RSX-11M.
But, I don't have Sysgen or HRC, so I'm screwed, right?
That would be why BOO looped forever on both systems, the monitor was told to
boot a device it had no support for.
Does this sound correct?
-------
Hi,
I found an Epson HC-41 today, it was aparently used for a machine tool
programmer.
Does anyone have a keyboard overlay that I could copy to replace the custom
overlay that they have on this machine?
Also i got the Floppy drive with it with instructions in Japanese. Can
anyone give some info on it?
I am also missing both power supplies (yes they work from the battery) what
are the reqirements?
As a general request, any info on that machine is welcome.
I also got another Fairchild channel F brand new and apparently never used.
And a Laser 128 with power supply and external disk drive. Oh and a copy of
the Haddock.
Francois
-------------------------------------------------------------
Visit the Sanctuary at: http://www.pclink.com/fauradon
-----Original Message-----
From: Daniel A. Seagraves <DSEAGRAV(a)toad.xkl.com>
To: Discussion re-collecting of classic computers
<classiccmp(a)u.washington.edu>
Date: Sunday, April 19, 1998 8:18 PM
Subject: Strange 11/83 behaviour...
>This is bizarre...
>This RSX was origionally in an 11/73. I had it in an 11/83.
>BOO was running REAL slow. I interrupted it after a 5-hour run.
>I swapped the KDJ11-B with an 11-A, reloaded, and now BOO
>is running at a faster pace, it hits the drive every 10 seconds.
>I just now started it.
>Maybe there's a bug in RSX, or my 83 is acting bizarre?
>-------
>
Now this is maybe a book that's worth $153.
Electronic Analog Computers (Second Edition, Hardcover)
Subtitle: D-c Analog Computers
Granino A. Korn, Ph.D. and Theresa M. Korn, M.S.
McGraw-Hill Book Company, 1956 (Original copyright 1952)
The lower-case 'c' is actually how its used in the book and the subtitle.
Here's the first couple paragraphs from the preface of the book:
D-c analog computers are relatively simple electronic devices now
commonly in use to solve a variety of problems in applied mathematics and
engineering design. The application of such computers to the simulation
of modern automatic control systems has been particularly successful; but
some acquaintance with d-c analog techniques can benefit almost any
engineer or research worker, no matter what his special field may be. A
d-c analog representation of a problem does not merely furnish needed
numerical data. It often seves as a working model which helps to close
the gap between physical intuition and exact analysis.
The continuing remarkable progress in the related fields of electronic
computers, instruments, and controls has led naturally to the preparation
of a new, completely revised edition of _Electronic Analog Computers_.
The greater part of the book has been entirely rewritten. We have
attempted to carry out our original purposes, namely
1. To acquaint research and development workers with tried methods for
the application of d-c analog computers as computing aids and
simulators, and with the possibilities and limitations of such
equipment;
2. To present a comprehensive body of up-to-date design information
on computer components and systems.
We believe that such information is of particlar interest to scientists
and engineers engaged in the development of instruments and industrial
control devices.
***
There are also pictures and descriptions in here of computers that I have
never even heard of, such as the Curtiss-Wright analog computer (CURTIAC);
the Berkeley EASE (Electronic Analog and Simulation Equipment) computer
made by the Berkeley Division of Beckman Instruments, Inc.; the Electronic
Associates Precision Analog Computing Equipment (PACE); the Goodyear
Electronic Differential Analyzer (GEDA) made by Goodyear Aircraft
Corporation; and the Reeves Electronic Analog Computer (REAC) made by
Reeves Instrument Corporation, New York City.
Also:
[A picture of a Donner Scientific analog computer]
A complete table-top d-c analog computer priced just below $1,000. The
unit comprises ten operational amplifiers, power supplies, all necessary
controls, and a removable problem board. Multipliers and function
generators are available as accessories (Donner Scientific Co.).
[A picture of a Heath analog computer]
This complete 15-amplifier machine is available as a do-it-yourself kit
for less than $1,000. The amplifier tubes are top-mounted to minimize
heating of components. The 30 coefficient-setting potentiometers are set
by comparison with a built-in precision voltage divider which is also
available for gain measurements (Heath Co.).
Wow.
The book is in excellent shape, save for the damn price written in grease
pencil on the inside cover thanks to the stupid thrift store pricer.
Sam Alternate e-mail: dastar(a)siconic.com
-------------------------------------------------------------------------------
Don't blame me...I voted for Satan.
Coming in September...Vintage Computer Festival 2.0
See http://www.siconic.com/vcf for details!
[Last web page update: 04/13/98]
Can anybody tell me what an IBM Executary is? To describe it briefly (I
didn't have much time to look at it), it is a small box, blue on the bottom
with a dial on the front, a few knobs/switches here and there, and a very
large hole in the side. Connected to it is a pedal of sorts. Push on the
right and it clicks, same with the left. Can anybody tell me what it is? Is
it worth $6?
Thanks,
Tom
< I just got myself a Diamond TrackStar Apple//-in-a-PC board. What lit
<info that I could find says that you can hook an Apple floppy drive to it
<However, in two places, the info says that it takes a standard Apple flop
<and then it says a Unidrive.
<
< Has anyone used this board? Which drive would it use? I know that it
<a 20-pin header on the board for the floppy. Any clues??
I can use any one of them. I don't have the software for mine but the
system I took it out of had it hooked to the 360k and another pigtail
going out of the box and tageed "to unidrive ".
I'd try it if I had software.
Allison
It bangs the disks every 10 minutes or so... What is it doing
that takes a 3 hour runtime?
I can see a sysgen or reload taking that long, but a bootsector write?
-------
In a message dated 98-04-19 15:18:07 EDT, you write:
<<
Has anyone used this board? Which drive would it use? I know that it has
a 20-pin header on the board for the floppy. Any clues??
>>
since it has the 20pin header, it will use the old full height disk ][
drives. adaptors have been made to let the later unidisk drives with the
db15<?> connector work with disk ][ type connectors but i do not have
specifics.
david
(This message is being cross-posted to the Classic Computers and Classic
Macs mailing lists. I apologize in advance to anyone seeing more than
one copy.)
This past weekend I acquired an Aaps MicroTV card, without any software
or manuals.
>
>If we're talking about hundreds or more, you want an automated solution.
>There are several companies which have sold modernish punched card
>readers in the past couple of years with RS-232 interfaces on them;
>the ones I see most often are Mountain Computer units which are about
>the size of a 2-slice toaster and can stack a couple of hundred cards in
>the input hopper. There's both a mark-sense and a punched-card version
>of this unit.
>
>Tim. (shoppa(a)triumf.ca)
So, pray tell... do you know what the difference is between the Mark Sense
and Punch Card versions of the Mountain Computer reader? (and how to tell
which is which?)
I have one of these units in my collection, and even though it happily
accepts the commands which should read punched cards, it always feeds one
card and then returns an error. So, I would start to think that it is the
mark sense version, but have never really found any identifiers on it.
-jim
---
jimw(a)agora.rdrop.com
The Computer Garage - http://www.rdrop.com/~jimw
Computer Garage Fax - (503) 646-0174
>For one thing, why not build a reader? Ought to be a fun weekend
>project ;) The other question is whether the Scantron units use
>optics or electric sensors for checking multiple choice tests.
I'm not sure about this, but electronic makes a LOT more sense. That's why
whenevery ou fill in one of those bubble sheets, they make sure that you use
a "Number 2 pencil." Because it has carbon in it. With an optical solution,
anything from crayon to pen to marker should work, if it were black.
Just my 0.02...
Tim D. Hotze
Moving RSX from that RDwhatever that's making bearing noises to a RL02.
Copied all the data files and such to the RL, but the RL isn't bootable.
When I try booting it types ** THIS IS NOT A HARDWAREBOOTABLE VOLUME **
or something along those lines.
This is RSX11-M v4.1
It's a severely butchered configuration made for a graphics workstation
by Genigraphics, that I hope to try making useful.
If the command required doesn't exist, (Likely!) I cam reload RT-11
and kermit the RL up to a PC, put a bootblock on the front, download
it again, and go. Does that sound do-able?
-------
For one thing, why not build a reader? Ought to be a fun weekend
project ;) The other question is whether the Scantron units use
optics or electric sensors for checking multiple choice tests.
>The mark sense readers depend on a series of "timing marks" printed on
the
>(lower?) edge of the card in order to work and I don't think they're
very
>good at sensing anything but very dark marks (remember the "special"
(#1
>lead) pencils you had to use when you filled out those cards in grade
school?)
>
>Visit Doug Jones' web site and drop him an email. He's very interested
in
>punched cards and knows quite a bit about readers, old and new. And
while
>you're at it, invite him to subscribe to this list. ;)
>
>http://www.cs.uiowa.edu/~jones/cards/index.html
>
>--
>David Wollmann |
>dwollmann(a)ibmhelp.com | Support for legacy IBM products.
>DST ibmhelp.com Technical Support | Data, document and file conversion
for IBM
>http://www.ibmhelp.com/ | legacy file and media formats.
>
>
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Thursday was a pretty good day as I found the folowing: a real nice book
called Microprocessors and Microcomputers Manufacturer's Literature by the
learning tree, great information on microprocesors, microcomputers,
peripherals, logic analyzers, logic chips, probes, breadboard systems;
another by Horowitz and Hill The Art of Electronics; HP9121 model D; IBM
7207-001 tape unit; IBM 7210-001 CD-rom; Apollo monitor 17"; IBM 3363
cd-rom unit; VT240 unit; Honeywelll Bull computer; HP9816 monitor/terminal;
Mac 128k mouse;3M D-2500 character generator; Unite digital test board; NEC
PC-8201A computer; and other items not in the 10 year rule.
Anyone have a manual laying around for a Commode-Ore C128D? This is the
128 model that has the separate keyboard and built in drive and power
supply, in a PC style case. If anyone has one we can work out a good
price or swap something for it. I need it for my own machine that I
recently acquired and the regular 128 manual just doesn't get it.
--------------------------------------------------------------------
Russ Blakeman
RB Custom Services / Rt. 1 Box 62E / Harned, KY USA 40144
Phone: (502) 756-1749 Data/Fax:(502) 756-6991
Email: rhblake(a)bbtel.com or rhblake(a)bigfoot.com
Website: http://members.tripod.com/~RHBLAKE/
ICQ UIN #1714857
AOL Instant Messenger "RHBLAKEMAN"
* Parts/Service/Upgrades and more for MOST Computers*
--------------------------------------------------------------------
Hello, all:
I just got myself a Diamond TrackStar Apple//-in-a-PC board. What little
info that I could find says that you can hook an Apple floppy drive to it.
However, in two places, the info says that it takes a standard Apple floppy,
and then it says a Unidrive.
Has anyone used this board? Which drive would it use? I know that it has
a 20-pin header on the board for the floppy. Any clues??
Rich Cini/WUGNET
<nospam_rcini(a)msn.com> (remove nospam_ to use)
ClubWin! Charter Member (6)
MCP Windows 95/Windows Networking
============================================
Turned up one of these on Friday. It has a 21 meg HD, an 8088, and is
about like having a flat bed scanner on your lap!
No power supply and battery pack (10 size "D" nicads) shot, but got it
working off my bench power supply. It appears to be working normally and I
think I can rig up a power supply from a Sony version for a portable VTR.
Is anyone familiar with this beast? It must be one of the earliest laptops.
I also got three C-64's in the '128 style cases, but didn't get into them
yet.
Regards
Charlie Fox
Sorry about not checking the reply-to address in the message to Bill.
I'm getting brain dead anymore and will move it to private email from
now on.
--------------------------------------------------------------------
Russ Blakeman
RB Custom Services / Rt. 1 Box 62E / Harned, KY USA 40144
Phone: (502) 756-1749 Data/Fax:(502) 756-6991
Email: rhblake(a)bbtel.com or rhblake(a)bigfoot.com
Website: http://members.tripod.com/~RHBLAKE/
ICQ UIN #1714857
AOL Instant Messenger "RHBLAKEMAN"
* Parts/Service/Upgrades and more for MOST Computers*
--------------------------------------------------------------------
:I know this is off-topic, but this is the type of crowd that can
:appreciate this.
[spam frittered away]
this is odd - we got exactly the same message chez communa. we're just
wondering which address list they used, for sam's name to be on it as
well as ours...
--
Communa (together) we remember... we'll see you falling
you know soft spoken changes nothing to sing within her...
Someone I know wants to identify an interesting Intel board they own.
Its about 18" wide by 12" high. It has the following markings on it:
Intel
System Interface and Control Module
MCB8-10
It has some odd chips, a 3-prong oval power socket and a S-100 like
connector.
Does anyone know what this is or for?
Sam Alternate e-mail: dastar(a)siconic.com
-------------------------------------------------------------------------------
Don't blame me...I voted for Satan.
Coming in September...Vintage Computer Festival 2.0
See http://www.siconic.com/vcf for details!
[Last web page update: 04/13/98]
Yes, indeed, Warez people are the 3rd generation hackers. For the most
part, they're not to good at all. They pretty much just take software and
pirate it (hence the name "warez" pronounced "wares") They can hack NT
(like someone can't!) And for the most part, think that UNIX is dead. They
couldn't tell you the differance between a modem and a sound card, except
"one has the phone jack".
They don't do good, or even do anything that no one's done before. They
just go in, say that they've "hacked" a website, and brag about it in a chat
room for the next 50 hours. They're mostly teens, and techies-gone-bad.
Tim D. Hotze
-----Original Message-----
From: Christian Fandt <cfandt(a)servtech.com>
To: Discussion re-collecting of classic computers
<classiccmp(a)u.washington.edu>
Date: Friday, April 17, 1998 7:20 PM
Subject: Warez?? Was: Re: James Willings still up?
>
>At 21:01 16-04-98 -0700, <jimw(a)agora.rdrop.com> wrote:
>>At 11:50 PM 4/15/98 +0000, you wrote:
>>>For nearly a week, have anyone seen James Willings's postings or in
>>>private emails between anyone?
>>
>>No, contrary to popular belief (and random hopes) I have not fallen off
the
>>edge of the world...
>>
>>My local ISP got hit with a large scale 'warez' attack a couple of days
ago
>>and is still recovering... And of course that puts me just that much
>>further behind in my mail... (and other things...)
>>
> --snip --
>
>Forgive me for not knowing what _might_ be common knowledge amongst some
>folks here, but what is this "warez" thing?? I guess I don't hang around in
>any online areas, etc. which would have clued me in. Just a brief
>explaination, please, or even a pointer to an info source. No need to take
>up much bandwidth on this.
>
>Judging from Jim's statement, these are possibly individuals who have taken
>the good old, original 'hacker' expression and turned it into something
>truely bad? Glad you're still around, Jim.
>-- --
>
>=======================================================
>Christian R. Fandt, Electronic/Electrical Historian
>31 Houston Avenue Phone: +716-488-1722 -Home
>Jamestown, New York +716-661-1832 -Office
>14701-2627 USA Fax: +716-661-1888 -Office fax
> email: cfandt(a)servtech.com
>Member of Antique Wireless Association
> URL: http://www.ggw.org/freenet/a/awa/
I got a July '87 copy of a computer catalog, and it had a product
which I found pretty interesting. This was a small modem-sized box
that went between the keyboard and the computer. It was a hardware
spell-checker, powered off the keyboard, costing $20. It was supposed
to beep upon detecting a mistake. Seems like a good idea. Anyone
seen something like it?
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