>> I used a TTY ASR-33 as a printer for my PET years ago. My memory is
>> that if I left the receiver open circuit, i yammered away printing
>> nulls; if I shorted out the loop it didn't. I interfaced it using one
>> transistor - no power supply was necessary.
>>
>> +----------------------
>> |
>> OUT b |/c
>> -------/\/\/\/---------| NPN TTY
>> |\e
>> PET |
>> -------------------------+----------------------
>> GND
>
>
> For I've got a Kludge
> And a good Kludge too ;-)
>
> Seriously, that works. I've done it myself a few times. But it's not the
> official way to drive a teletype - the external device should source the
> loop current. And I prefer to teach people the right way and let them
> find out the kludges for themselves.
Oh, yes. Absolutely. But I was disagreeing with your assertion that
while 5V might do for the transmit loop, you'd "need" 12V for the
receive loop.
>> Note: I never interfaced the TTY transmitter - not even for reading
>> paper tape (don't know why not)
IIRC, one of the problems I had was the high resistance of the transmit
loop - many kilohms, I think. It probably was mostly contact resistance
and highly non-linear i.e. apparent resistance would be less at higher
currents), but I wouldn't like to use only 5V. I'd suggest a reasonable
sized decoupling capacitor to get rid of contact noise, too - say, up to
1 microfarad.
> Err, because the ASR33 reader is horrible and mangles tapes? You have a
> Trend, don't you?
This was at least 4 years before I ever _saw_ any other paper tape
stuff. Long before I got the Trend. Or even my little DSI box. (DSI =
Data Specialties Inc. They made a 30cps reader/punch unit that was sold
in the UK by a small company called Teleprinter Equipment Ltd. Never
met either of them anywhere else.)
Philip.
<> It interests me why some one wants a particular machine especially
<> since you do not seem to know much about it.
<
<Well, I can't speak for the person you were replying to, but in my
<case I'm often interested in machines I know little to nothing about
<because I'm interested in learning about them. Although you can
<learn a lot without one, it can help if you have one to explore.
That is a good reason. The fear I have and have encountered is people
lusting for an XZ21 and when they get it find they are totally in over
their head to do programming or hardware troubleshooting often required.
The NS* was a good machine but it was S100 and beyond some general things
was not a pop in a board and play thing like PCs. I get real scared
when some one asks me if a VGA monitor works with a Altair or did it
require a XT style keyboard!
Allison
I will say Amen to that, considering that I just mailed 9 boxes of
MS-DOS 3.3 which were still shrinkwrapped and beign thrown away by
my school. THat has to be $500 right there that could have been used
on pencils. I won't complain about the fate the DOS 3.1 boxes met...
>
>>
>> Personally, I believe the "computer literacy in schools is
everything"
>> movement is a result of inept teachers and a haywire NEA.
>
>Amen!
>
>> students should be introduced to computers (read: word
>> processors/calculators) until the first year of high school after
>> mastering basic reading, comprehension, writing and math skills.
>
>
>The problem with introducing elementary and middle school kids to
>computers so early is that they either a) know more than the lab admin,
or
>b) aren't allowed to use them in any constructive way. I'm only in the
>tenth grade, but I've already seen seven new labs installed in area
schools.
>The school districts almost ALWAYS spend WAY too much on new computers,
>mainly from the worst vendors, only to have to replace them when the
>warranty runs out (with very little usage, BTW). The computers simply
>aren't used until high school, when word processing/database,
programming,
>and other such courses are offered. Anything before is mainly a waste
of
>money.
>
>What about the 'net? I don't understand why people think that the
>internet is such a great "tool" that will help schools. Just do a
search
>for "barbie" on Yahoo. Or, for that matter, try "video" or something
>general. Especially considering that most schools don't use any
>Internet blocking software..
>
>It takes most people a long time to get used to using search engines in
such a
>way to get what they want. Most people in my school don't have any
idea how to
>use the 'net, and could care less. That is the general attitude at
most
>schools that I have been to.
>
>In other words, most of the money spent on computer equipment is a
waste.
>
>
______________________________________________________
Get Your Private, Free Email at http://www.hotmail.com
If you haven't seen the news yet, I found out thanks to http://slashdot.org
, Microsoft is pulling one of their dirtiest stunts ever in their attempt
to destroy Netscape. If anyone doesn't think Microsoft is evil this should
convince them, unless they are niave enough to think Microsoft isn't behind
this!
In what would appear to be a result of their assimilation of Wang last
month, Wang has announced a Lawsuit against Netscape for Patent
infringement. Basically Wang is claiming to have "Save As..."
patented?!?!?! For an explanation see
http://www.mozilla.org/legal/wangsuit.html I also like the Graphic and
comment at http://www.mozilla.org
The problem is, Wang is sueing them for something that almost EVERY piece
of software available does! Netscape needs examples of software that do
the things in the patent prior to March 30th, 1983. See the below
information.
Wang might be able to use this to get a Court injunction to prevent
Netscape from distributing Navigator?!?! A lot of the Free Software
fanatics are seeing this as a direct attack against free software by
Microsoft, since Netscape just released the Navigator source code.
Zane
Here is the portion of the statement that is the most important:
-----------
Wang is asserting that a patent that it holds for a video text system is
infringed by the Netscape browser. Netscape is vigorously defending the
lawsuit. Wang contends the patent discloses the invention of:
Saving web pages retrieved from a server using "Save As" (See Claim
23, 24),
Bookmarks (Claims 20-22),
Saving files with file extensions and then retrieving the pages and
decoding the files based on the file extension (Claim 38).
The patent was filed in 1984. We believe the patent is noninfringed,
unenforceable, and invalid based on, among other things, prior art such as
the
Alto & Star computers from Xerox Parc, Terminal Emulators, connectivity
software prevelant in the the early 80s such as CrossTalk, Unix
symbolic links (ln -s), and various other "video text" systems like
Telidon, Prestel, Mupid used in the late 70s, early 80s.
It's easy to say "of course that's invalid", but what is required are
specific references to prior art. If you know of additional prior art
publications,
software programs, books, or systems in existence --prior to March 30,
1983-- which disclose and/or describe the claimed elements send us a
message. Send responses or questions to mozilla.org. Please include the
following information:
Name of the Publication or System
Date of the Publication or Date System Was Publicly Known
Features it Discloses
Where Can the Publication or System Be Found (ie. university,
reference library, company, contact person)
----------
| Zane H. Healy | UNIX Systems Adminstrator |
| healyzh(a)ix.netcom.com (primary) | Linux Enthusiast |
| healyzh(a)holonet.net (alternate) | Classic Computer Collector |
+----------------------------------+----------------------------+
| For Empire of the Petal Throne and Traveller Role Playing, |
| see http://www.dragonfire.net/~healyzh/ |
| For the collecting of Classic Computers with info on them. |
| see http://www.dragonfire.net/~healyzh/museum.html |
>Qoo, Tim!
>Wadda hell...
If you say so. ;-) Anyway good to see you subscribed.
>>OS/2 !! SYS01475
>>OS/2 !! SYS02027
>>
>>So anyway, it freezes like that. This, BTW, is on a 2.1GB HDD, with no
>>other OS'es currently installed.
>It may be 2.1G that causes the problem - if it is used as single partition.
>I heard that Warp3 isn't too well in handling big partitions. Try breaking
>it into smaller pieces (<1G)
Oh, yeah, that's why I gave specifically 2.1GB. So I'm going to have the
boot manager, 120MB for Warp, 700 for Linux and the rest for Windows
(remember, I need to run some Win32 apps, not by choice.)
>hope that helps,
>-andy
Tim D. Hotze
Kai-
I am interested in purchasing the North Star Horizon. I am not local
and don't have a trade so would be a cash deal.
Do you have any info about the machine such as amount of memory, type of
floppy(ies), last known operating system, hard drive (if any), keyboard,
monitor, and condition (working/nonworking).
Thanks
Randy Staponski
With the recent discussion on the MTPRO price guide, the ZX80 bashing,
and a bit further back the Enrico Tedeschi flame festival, I found it
quite amusing to run across the following entry at eBay:
http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItem&item=13957826
For those without a web browser, I'll just say that this is a book on
Sinclair computer history, being auctioned by the author of the MTPRO
price guide (who goes by the handle "ClassicComputing" at eBay). Most
remarkable of all, the book was authored by a gentleman named Enrico
Tedeschi.
--
mor(a)crl.com
http://www.crl.com/~mor/
I'd love to check out the MIT Flea Market. When and where is it?
"J. Maynard Gelinas" <maynard(a)jmg.com> on 05/14/98 01:15:48 PM
Please respond to classiccmp(a)u.washington.edu
To: "Discussion re-collecting of classic computers" <classiccmp(a)u.washington.edu>
cc: (bcc: Bill Sheehan/Corporate/SWEC)
Subject: Re: Can we talk about computers at least?
Well Agreed!
Sorry I haven't been active in the list much... between work and
a family illness I've been _busy_! BTW: Anyone planning on attending
the MIT Flea market this Sunday? I doubt prices are going to be
reasonable what with that $100 PDP-11/23 last month.
--jmg
> From: Sam Ismail <dastar(a)wco.com>
> Subject: Can we talk about computers at least?
>
> People.
>
> Could we move the discussion about the perceived woeful inadequacies of
> the current state of public education to a more appropriate forum? Like
> say a usenet group? Or a new mailing list? Basically anywhere but here,
> where it really does not belong?
People.
Could we move the discussion about the perceived woeful inadequacies of
the current state of public education to a more appropriate forum? Like
say a usenet group? Or a new mailing list? Basically anywhere but here,
where it really does not belong?
Thanks in advance.
Sam Alternate e-mail: dastar(a)siconic.com
-------------------------------------------------------------------------------
Ever onward.
September 26 & 27...Vintage Computer Festival 2
See http://www.siconic.com/vcf for details!
[Last web page update: 05/11/98]
This is for those of you in the Chicago area, and anyone else that
might be able to help me. I am just writing to ask if some of you
might be able to direct to some good classic computer sources in the
Chicago, Illinois area. I am leaving for Chicago for the weekend, and
will have some free time to browse thrift shops, etc. Any place that
might have a good stock of old 8-bitters?
Thanks,
CORD COSLOR
--
____________________________________________________________
| Cord G. Coslor : archive(a)navix.net |\
| Deanna S. Wynn : deannasue(a)navix.net | |
| on AOL Instant Messenger: DeannaCord | |
| http://www.geocities.com/SiliconValley/Vista/4395 | |
|------------------------------------------------------------| |
| PO Box 308 - Peru, NE - 68421 - (402) 872- 3272 | |
|------------------------------------------------------------| |
| If you don't have AOL (like us) but want a great instant | |
| chat feature, just go to http://www.aol.com/aim | |
|____________________________________________________________| |
\_____________________________________________________________\|
In a message dated 98-05-14 05:40:03 EDT, you write:
<< Sorry, as it seems that I've become the maker of off-topic content, but now
after I've installed OS/2 (first 6 disks) Warp 3, using FAT (High
Performance File System didn't work), I get:
OS/2 !! SYS01475
OS/2 !! SYS02027 >>
if i remember correctly, that's the os2 version of: non system disk or disk
error. you might have to remove the floppy from a: drive or do a sysinstx
command to sys the hard drive.
david
Qoo, Tim!
At 12:38 14.05.98 +0300, you wrote:
>after I've installed OS/2 (first 6 disks) Warp 3, using FAT (High
>Performance File System didn't work), I get:
Wadda hell...
>OS/2 !! SYS01475
>OS/2 !! SYS02027
>
>So anyway, it freezes like that. This, BTW, is on a 2.1GB HDD, with no
>other OS'es currently installed.
It may be 2.1G that causes the problem - if it is used as single partition.
I heard that Warp3 isn't too well in handling big partitions. Try breaking
it into smaller pieces (<1G)
hope that helps,
-andy
Despite my former comments I'd say computers do have a place in education
as do television.
I went through most of school as an avid non-writer, managed good grades
despite it even in english so long as writing was not required. It was
word processing or actually a simple editor and printer that open the door
to writing, somehow made it less painful. It didn't help my bizzare
grammer or spelling but at least I wrote. The catalyst was writing code
and having to document it. Did computers help, yes. It wasn't pacman
or clicking icons just using the tool for what it can do best. What was
best was simply allowing me to bang down words and then peice them
together in some sensible way.
As to what computer to use, old! why old, no matter what they have
new now it will be old it a few years when they have to apply it. It's
better they understand so that the knowledge can be applied rather than
keystrokes. Students would do better to learn VI and ED than the latest
version of QARK or Word.
Allison
>Seem to remember I had the same problem when I tried to find out info
>about my /// a few years back... back then WAP had no web site, email or
>anything that I could find, which made life difficult for those of us
>stuck in the UK... hopefully things have progressed a little by now!
>
>(If you find a web address could you post it here please?)
http://www.wap.org/
-- Kirk
>I did pick up another Apple peripheral at the same time, which may offer a
>clue. It's a Modem 1200, Model A9M0301. The "clue", assuming it came
>from the same source, is the 8-pin mini-DIN connector. I don't know what
>uses that kind of connection for the serial port.
>
The //gs and Macs do, maybe the later //c or //c+
>Did the Apple 3.5" Drive have a mechanical eject? Fully manual, I mean,
>not just a push-button that tells the motorized ejection mechanism to wake
>up. Very un-Mac-like.
The manual eject was only on the drives designed for the // series.
-- Kirk
>> [wap]...
>>Thanks! We'll jump right over the the web pa....oh, you didn't post one.
>>Ok then we'll just call the phone numbe...oops, you didn't give us that
>>either. Ok, well I guess we'll just have to do it the hard way and write
>>a letter to...hmmm, no physical address.
:*)
Seem to remember I had the same problem when I tried to find out info
about my /// a few years back... back then WAP had no web site, email or
anything that I could find, which made life difficult for those of us
stuck in the UK... hopefully things have progressed a little by now!
(If you find a web address could you post it here please?)
cheers,
Jules
>
Greetings,
Last week, along with a boxload of other stuff, I picked up an external
3.5" floppy drive that apears to be intended for Apple machines.
It's a DS800 from DataSpace Corporation.
It physically plugs into my Apple //c, but I can't get the machine to
recognize it. The drive makes a noise when I power up the computer, but
that's all. Attempts to access S6, D2 or any other slot and drive
combination doesn't get anywhere.
It DOES respond to my Mac 512K, though. I plugged it into that machine
and shoved a Mac-formatted disk in it, and an icon and open window popped
up.
I don't think the drive can be intended for the Mac, though, because it's
got a MECHANICAL eject mechanism. In fact I was able to eject that Mac
disk (write protected, thankfully ;) ) and the Mac didn't notice.
Is there something I need to do to get my //c to recognize the drive? Or
is it intended for use on a //gs? Or did this company make a line of
dangerous Mac peripherals in an attempt to give the platform a bad name
for an overabundance of disk corruptions? ;)
Doug Spence
ds_spenc(a)alcor.concordia.ca
Sorry, as it seems that I've become the maker of off-topic content, but now
after I've installed OS/2 (first 6 disks) Warp 3, using FAT (High
Performance File System didn't work), I get:
OS/2 !! SYS01475
OS/2 !! SYS02027
So anyway, it freezes like that. This, BTW, is on a 2.1GB HDD, with no
other OS'es currently installed.
Ciao,
Tim D. Hotze
I just spent Saturday morning in an Ali Babas cave of old computers
ranging form a huge 6ft tall by 10 ft wide analogue computer through a
few DEC machines (see below, and old ICT 1301, a Telefunken TR4 a
burroughs 1800, a few French minicomputers and quite a number of
unidentified systems. Included were lots of tape and disk drives, boxes
of documentationa nd software. Just a dream come true!
The collection belongs to ACONIT : "l'Association pour le Conservation
de Informatique et Telematique" I guess that's pretty clear even to non
french speakers. It has been accumulated over since 1985 and is
currently stored in a warehouse in a town called Voiron near Grenoble.
ACONIT has acquired larger and more convenient premisies in Grenoble
itself and will be moving the collection there later this year and we
plan on setting up workshops etc to restore as many of these systems as
possible.
Among the DEC machines I saw was a complete PDP-9. How rare are these?
Anyways, if anyone is in the Grenoble region later on in the year drop
me a line and I can provide a personally conducted guided tour of what
we have.
I'll keep you all informed of what we are doing as thngs develop.
Regards,
Hans B Pufal
At 09:44 AM 5/13/98 -0400, you wrote:
>
> Personally, I believe the "computer literacy in schools is everything"
> movement is a result of inept teachers and a haywire NEA. Here in the
> Washington, D.C. area I have read reports of teachers pushing
> 'invented' spelling as a method to avoid hurting the challenged
> student's self esteem. Educators seem to think the student will
Ummm... I don't doubt someone came up with this, but I doubt that it is
widespread; If one teacher does it, the media pick it up and report it as
if everyone was doing it, and of course the public loves to think that all
teachers are idiots just goofing off until they can retire.
I think it's jealousy over this (imaginary) summer vacation.
Most teachers are extremely hard working, committed educators who put a lot
of their own time and money into their classes. My girlfriend (admittedly,
one of the most insane) arrives at school before 7am (everyday) and rarely
leaves before 5pm. She spends her evenings and weekends doing schoolwork.
She spends her summers planning the next year and building various
curriculum. And she works with the other teachers all the time, so she's
not alone.
The problem is partially a lack of funding for schools and very a lack of
adequate parenting. Rachel sent home some work for the kids to do with
their parents one time; she got one back where the father had written (on
both sides, in big, red letters) that his kid can't do such advanced work
(they'd been doing it in class all week) and that "I AM NOT A TEACHER".
With a father like that, it's a wonder that the kid knows how to go to the
bathroom.
There are other kids: one whose parents come to school at lunch time to
take him to the bathroom and feed him his lunch (first grade, no kidding),
and a kid who is almost completely blind, yet even after the social worker
took him to the eye doctor (with her own money) still doesn't have glasses.
Kids whose parents beat them, who are being raised by grandparents because
their parents don't want them, kids who see people shot in real life, as
well as on TV. And there are kids who are taught to hate because of skin
color or religion, or whatever. Kids that are taught that the proper
response to a disagreement is hit. Kids that are ignored at home, left on
their own with a babysitter or nanny, or worse, to wander the neighborhood.
Kids that are allowed, even encouraged, if it will shut them up, to watch
stuff on telly that even *I* won't watch.
Sure, there are bad teachers out there, just as there are bad mechanics,
programmers, doctors, etc. But most of them work harder than probably
anybody on this list, and probably for a lot less money.
But parents don't even take responsibility for checking out the teachers.
There are also different styles of teaching; you wouldn't drop your volvo
off at a Land Rover mechanic, would you? But most parents don't bother to
see (or ask) if a teacher's style is the best for their kids.
Most parents pay more attention to whether or not their kids have brushed
their teeth than whether or not they've done their homework.
Don't put the blame on the teachers without putting it on the parents as well.
> in software will correct them. What a cop out. I don't believe
> students should be introduced to computers (read: word
> processors/calculators) until the first year of high school after
> mastering basic reading, comprehension, writing and math skills.
Computers are a very valuable tool for teaching those very skills. To deny
kids access to them is to slow them down.
--------------------------------------------------------------------- O-
Uncle Roger "There is pleasure pure in being mad
roger(a)sinasohn.com that none but madmen know."
Roger Louis Sinasohn & Associates
San Francisco, California http://www.sinasohn.com/
>At 07:06 PM 5/13/98 +0300, you wrote:
>>to learn anything in perticular, except for stuff pertaining to... anyway,
I
>>think that here's a good time to give students a choice to know what
they're
>>going to do. I, for instance, want to specilize in Computers. Spending
>>time learning "Pre-Algebra" (Just spent 2 class periods making a
protractor
>>accurate to 90' from a piece of paper.) isn't helpful, at least not that
>
>Okay, so maybe you're a wiz in math/science, but you've got two
>misspellings in there (pArticular and speciAlize) so perhaps you should be
>concentrating on grammar/literature/etc? 8^)
I'm not a wiz in math/science at all. That's the point. I'm not learning
anything, and neither are the 14 or so people that I really know in the
class. In a class where 2/3 isn't learning jack SHOULD tell the teacher
something.
>>>High school, take the first two to the next levels and add skills needed
>>>to find paying work.
>>
>>I say that some students should be given the oppertunity to do this in Jr.
>>High. Not everyone, but some people. After all, by this time, you know
if
>>you're not going to be a chemist, programmer, or anything.
>
>Well, in Jr. High I was all set to be a private dick... er, detective.
>Early high school, I was ready to head for Harvard Law School. Late high
>school, the plan was U-Ill/Urbana-Champaign for under Grad Elect/Elect
>Engineering, then MIT for grad school. During college (SF City College) I
>was going to join the FBI. After dropping out of college, I wanted to be a
>synthesist, or maybe an inventor. Now, I want to be a politician.
>
>So when is it you know what you want to be when you grow up?
Computers. Entrepreneur. I'll start my own company developing software.
I'd start out with simple stuff, such as an e-mail client, and grow.
Another good thing to do (at least now) is to start a web page/Virtual
Community. That's changed a single time since Kindergarten, where I wanted
to be an aeronautical engineer, seeing as how I had zip experience with
computers. My idea's been the same for 5 years now.
Tim D. Hotze
At 11:59 PM 5/12/98 +0000, you wrote:
>Apple and 8bitters of it's ilks that is found in K-12 has it's places
>because these are what excels at teaching kids materials but in high
>school level, we need to convert guys over to real things like
>windows and 486 boxens, unix and like using word processing and
>speadsheets, such yak yak..of most types not including 100% dumb M$
NONONONONONONONO!!!
Word Processing and Spreadsheets, even 'net access can be taught just fine
on 8-bit machines, or DOS-based PC's. The younger kids are the ones who
can profit most from the non-textual interfaces that the newer machines can
offer.
To over-simplify: Older kids can read; they can learn to type commands.
Younger kids can't read; they need pictures (icons).
--------------------------------------------------------------------- O-
Uncle Roger "There is pleasure pure in being mad
roger(a)sinasohn.com that none but madmen know."
Roger Louis Sinasohn & Associates
San Francisco, California http://www.sinasohn.com/
Personally, I believe the "computer literacy in schools is everything"
movement is a result of inept teachers and a haywire NEA. Here in the
Washington, D.C. area I have read reports of teachers pushing
'invented' spelling as a method to avoid hurting the challenged
student's self esteem. Educators seem to think the student will
eventually learn to spell correctly later in life or that spell-checks
in software will correct them. What a cop out. I don't believe
students should be introduced to computers (read: word
processors/calculators) until the first year of high school after
mastering basic reading, comprehension, writing and math skills.
Marty
______________________________ Reply Separator
_________________________________
Subject: Re: RETROCOMPUTING LIQUIDATION
Author: classiccmp(a)u.washington.edu at internet
Date: 5/12/98 9:47 PM
When was this thing with "computer literacy in schools is everything"
started? I like computers in schools, but I am tired of looking at
proposed plans to replace 5 MORE classrooms with computer labs. Is
this a classic thing? Would you in general say that computers have
affected education (keeping the discussion OnT, of course).
>
>> snoball wrote:
>> >
>> > Hi, I am a teacher here at the local elementary school in Humble,
TX. To be
>> > honest, the computer department here at the school is rather
pathetic, two
>> > Apple //e's and an XT that was donated that I can't get to work.
To be
>> > frank, these kids are going into a world where they are illiterate
in the
>> > basic workings of a computer. I hate to sound desperate, but I
have just
>> > exausted all leads I know to take on the matter. I saw your ad and
thought
>>
>> Don't panic. Here in New Jersey, the kids are all experts at
>> Nintendo (and some of the brighter lights at hacking security),
>> but damned few can actually read the manuals. Remember, the
>> most important component of "computer literacy" is "literacy".
>> If the kids can read, they can learn computers. If they can't,
>> there's not much else worth teaching them except to pee on the
>> side of the dumpster the cops aren't watching. (I may be a bit
>> prejudiced on the side of reading over computers -- I only have
>> fifty-odd computers, I've got [half bought new] several thousand
>> books, mostly the science fiction I've loved since before the
>> "New Math" was introduced to my grade school [after I'd had the
>> benefit of learning the stuff that worked].)
>> --
>> Ward Griffiths
>> They say that politics makes strange bedfellows.
>> Of course, the main reason they cuddle up is to screw somebody else.
>> Michael Flynn, _Rogue Star_
>
>
>
>
______________________________________________________
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From: "Max Eskin" <maxeskin(a)hotmail.com>
To: "Discussion re-collecting of classic computers"
<classiccmp(a)u.washington.edu>
Subject: Re: RETROCOMPUTING LIQUIDATION
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> Are there any students besides Derek on the list?
>
> I am a fourth year electrical engineering major here at
> Oklahoma State.
>
> --Scott
I'm a terminal student of the college of Hard Knocks....
Graduating when they pry my cold dead fingers from the keyboard.
--
Bill
#include <std.disclaimer.h>
+---------------------------------------------------------------------+
| whayes(a)wizard.com | Powered by FreeBSD | finger for pgp public key. |
+---------------------------------------------------------------------+
Key fingerprint = 54 AC A0 8E F0 B6 94 6B 93 6B 34 D7 EB 13 78 BC
<Apple and 8bitters of it's ilks that is found in K-12 has it's places
<because these are what excels at teaching kids materials but in high
<school level, we need to convert guys over to real things like
<windows and 486 boxens, unix and like using word processing and
<speadsheets, such yak yak..of most types not including 100% dumb M$
<stuff.
Let me compress that:
Elementary school, how to learn. (language, reading, arithmetic)
Intermeadiate school, how to find answers to questions and communicate
them.
High school, take the first two to the next levels and add skills needed
to find paying work.
Computers are a part of life and M$ stuff is unfortunatly reality we live
with every day. The unfortunate part is I meet kids at the grocer that
play doom, surf the net and can't count change.
Allison
>At 03:28 AM 5/13/98 -0500, Doug Yowza wrote (more or less):
>
>Perhaps Someone should make a web site with reports of classic
>system sale prices, in order to balance the tales of $500 PETs
>with $5 PETs. Like anything else, so many other factors must
>be considered: rarity, condition, history, etc.
>
>- John
Actually, David Greelish (of "historically brewed" and the "classic
computing society") is attempting just such an online price guide. His
efforts so far can be seen on:
http://members.aol.com/mtpro/
email: desieh(a)southcom.com.au
desieh(a)bigfoot.com
museum_curator(a)hotmail.com
Apple Lisa Web Page:
http://www.southcom.com.au/~desieh/index.htm
>On Tue, 12 May 1998, The Adept wrote:
>
>> I almost choked on my Leinenkugel's when I saw the current bid on the
>> following:
>>
>> http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItem&item=13839197
>>
>> I'll save the surprise for you who want to check it out (it's a
>> Commodore Educator 64)
>
>Holy Crap! I should just sell my damn collection at the prices some of
>these goons are paying. I could pay off all my bills AND put in that pool
>I've always wanted, plus put a down payment on the Viper.
>
>Sam Alternate e-mail:
>dastar(a)siconic.com
>--------------------------------------------------------------------------
>-----
>Ever onward.
>
> September 26 & 27...Vintage Computer Festival 2
> See http://www.siconic.com/vcf for details!
> [Last web page update: 05/11/98]
>
yeah well a fool is born every 1 second dont they say?
or was it a fool and thier money soon part.........
man I could get that Cadilliac Ive always wanted if i sold my
collection......
Hi All,
I recently acquired an ASR33 and I'm in need of some assitance in order
to be able to let it work against my Unix box.
At the back of the powersupply there is a terminal strip with a number
of lugs. Question is, which lugs to use, the unit is an UCC-6
(for private wire setups).
Other problem is which voltage to use for the current loop to rs232,
I have a converter, and uses 5 volt maximum, and do not know if that
will work. If not, does someone then have a proper schematic?
Thanks,
Ed
>Well aside from the fact that we're _all_ students whether or not
>we're matriculated somewhere -- Tim Hotze is around here someplace
>and I'm pretty sure he's not officially in college yet.
Far from it, unfortunaetly. BTW, just for other students, or ex-students on
the list: Yesterday I had my science fair project: Linux Vs. Windows. Now,
I had two or three problems: 1) Couldn't seem to "dumb it down" enough to
get the judges to understand.
2) Presentation wasn't really "flashy", more like a scientific paper. 3)
The paper was too "dumbed down" to actually say what I wanted it to say. I
couldn't do what I wanted to so that it would make sense to the judges.
>--
>Ward Griffiths
>They say that politics makes strange bedfellows.
>Of course, the main reason they cuddle up is to screw somebody else.
> Michael Flynn, _Rogue Star_
Tim D. Hotze
I am. In 7th grade. Still think that jr. high school's a COMPLETE waste of
time, especially for geeks (or people like me, who like to consider
themselves geeks, but probably couldn't make it...), at our school. No
UNIX, no programming, not even a 32 bit OS!!! (And that's even counting
Windows!!!!) All I really can do is do what I want in Computers... (but
with the software that they've got available, the most I can do is type a
word doc. instead of write an e-mail... TONS of freedom there...)
Ciao,
Tim D. Hotze
-----Original Message-----
From: Daniel A. Seagraves <DSEAGRAV(a)toad.xkl.com>
To: Discussion re-collecting of classic computers
<classiccmp(a)u.washington.edu>
Date: Tuesday, May 12, 1998 7:14 PM
Subject: Re: Hello - I'm a new reader / STUDENTS
>[Any students?]
>
>I'm a high school student...
>-------
At 07:06 PM 5/13/98 +0300, you wrote:
>to learn anything in perticular, except for stuff pertaining to... anyway, I
>think that here's a good time to give students a choice to know what they're
>going to do. I, for instance, want to specilize in Computers. Spending
>time learning "Pre-Algebra" (Just spent 2 class periods making a protractor
>accurate to 90' from a piece of paper.) isn't helpful, at least not that
Okay, so maybe you're a wiz in math/science, but you've got two
misspellings in there (pArticular and speciAlize) so perhaps you should be
concentrating on grammar/literature/etc? 8^)
>>High school, take the first two to the next levels and add skills needed
>>to find paying work.
>
>I say that some students should be given the oppertunity to do this in Jr.
>High. Not everyone, but some people. After all, by this time, you know if
>you're not going to be a chemist, programmer, or anything.
Well, in Jr. High I was all set to be a private dick... er, detective.
Early high school, I was ready to head for Harvard Law School. Late high
school, the plan was U-Ill/Urbana-Champaign for under Grad Elect/Elect
Engineering, then MIT for grad school. During college (SF City College) I
was going to join the FBI. After dropping out of college, I wanted to be a
synthesist, or maybe an inventor. Now, I want to be a politician.
So when is it you know what you want to be when you grow up?
--------------------------------------------------------------------- O-
Uncle Roger "There is pleasure pure in being mad
roger(a)sinasohn.com that none but madmen know."
Roger Louis Sinasohn & Associates
San Francisco, California http://www.sinasohn.com/
At 07:41 AM 5/13/98 -0500, you wrote:
>Did you ask if he added one too many zeros? Obviously the guy is heavy into
>hallucenogenic drugs...The Commie itself is worth *maybe* $40 and the
mixer is
>worth maybe another $200 if your lucky. I have seen and done some things with
>those obscure little breadboxes though that most people would never think
>possible.
Ummm... I don't dispute the commie value (perhaps a tad high?) but a
24-track (or was it 32?) 8-bus mixer with automation for $200? Tell me
where -- I'll buy it.
--------------------------------------------------------------------- O-
Uncle Roger "There is pleasure pure in being mad
roger(a)sinasohn.com that none but madmen know."
Roger Louis Sinasohn & Associates
San Francisco, California http://www.sinasohn.com/
At 06:43 PM 5/12/98 PDT, you wrote:
>When was this thing with "computer literacy in schools is everything"
>started? I like computers in schools, but I am tired of looking at
>proposed plans to replace 5 MORE classrooms with computer labs. Is
>this a classic thing? Would you in general say that computers have
>affected education (keeping the discussion OnT, of course).
Well, I'm shooting from the hip here, but I do have some experience in this
area.
The idea of "computer labs" comes from IMO two things: 1) The idea of
teaching "computers" as a separate subject and 2) the inability for schools
to afford computers for every classroom.
Looking at these in turn, "computers" as a subject in itself *may* have
been a valid concept *at one time* (i.e., with some of the machines we deal
with) but now is no longer an issue. Kids today have very little problem
with the concepts involved in running a program (it's the same as sticking
in a nintendo cartridge) or using a mouse (aka joystick) etc. Certainly,
programming is a separate issue, but not everyone needs to learn C or Java
or even Basic, just as not everyone needs to learn how to rebuild a
transmission or tune a piano.
As for schools not being able to afford computers, well heck, they can't
even afford pencils and paper. I kid you not. Every fall, I get woken up
at 7am to be first in line at Target when the Crayons/folders/pencil
boxes/pencils/scissors/etc. go on sale (every week, it seems -- <groan>) so
that my girlfriend can buy the supplies she wants for her classroom on sale
*with her own money*. So, yes, most schools can't afford computers, in
general, let alone enough for each classroom.
So, what to do? Should they even bother? I think, based on Rachel's
experiences, that the answer is a resounding *YES*, teachers should
scrounge and steal and swindle as many computers as they can for their
schools/classrooms. But not to teach "computers". They should be a tool,
just like any other, to teach reading, math, science, comprehension, etc.
And so I'll go against the grain and say it's more important in the lower
grades (K-3 or so) to have computers available than in the upper grades.
Upper grades, junior and high school especially, can do just as well with
older machines as they can with the newer ones.
PC-Write under DOS is an excellent solution for writing term papers or book
reports, and will teach the concepts of word processing just as well as the
latest version of MSWord. Qbasic, Cobol, and C/C++ for DOS are all just as
good as their GUI counterparts for learning how to write a program; Once
you understand the idea, switching to another language is a piece of cake.
I write all my web pages in PC-Write (and I'm damn proud of some of them)
and often use Arachne (DOS browser) to check them.
Non-readers, however, can make better use of newer technology. Programs
like the Playroom, Millie's Math House, and such really get the kids
interested and having a good time; they don't realize (or care) that
they're actually learning to read or count or what-have-you. This is the
real value of computers in education. Mind you, older computers can be
used here too, (the original version of the Playroom ran fine on a Mac
Plus), but if you've got an old XT and a 486, give the upper grades the XT
and the wee ones the 486.
As to the craze for pushing computer literacy at the expense of general
literacy, I think that older folks (30+) look at technology and how it was
new to them, and how it is becoming so pervasive in our society, and
they're scared. Scared that their kids will be as unprepared as they were.
(What they don't understand, of course, is that that very pervasiveness
will make kids take the technology in stride: My niece could work the VCR
(play, ffwd, rwd, eject) at 1.5years; she's a wiz on the computer) Add to
that the media and the politicians who love to play on the public's fears
and work them into a frenzy to serve their own purposes and the corporate
world who just want to sell more *stuff*...
Computers have affected education, both for good and bad (like most
anything.) They allow teachers to come up with fun worksheets that teach,
quickly and easily; they can help kids that couldn't learn to read finally
do it; they allow kids to work independantly at their own speed, allowing
the teacher to work with the kids that need the most help. But, they also
cause distractions, can be abused as babysitters by lesser teachers, and
can displace funding and space for other, more needed supplies and
equipment.
Overall, the benefits of computers in the schools (as elsewhere, IMO) *FAR*
outweigh the problems.
Now the problem with older computers in the classrooms is not that they're
not useful, it's that they're not adequately supported for the majority of
non-computer-literate teachers. (Teachers know how to teach; they don't
know how to do a low-level format on a CP/M hard drive.) So, all you folks
on this list, who know what you're doing, call up your local schools and
see if they have any [older] computers that they need help putting to use.
> honest, the computer department here at the school is rather
> pathetic, two Apple //e's and an XT that was donated that I
> can't get to work.
Apple //e's are fine for teaching BASIC programming and Word processing,
and I know there are educational programs available for the younger kids,
too. (Right Sam?) That XT should be repairable, and would make a great
text-editing station or could be put to use in math classes running Lotus
1-2-3 or Excel.
But, we've got a teacher who can't put them to use, but they don't have the
skills/knowledge to do so.
So, are there any collectors in/around Humble TX that can help out?
P.S., I have my girlfriend working on a list of all the EduSoftware she has
and what it's good at (and how good it is) to be put on a web page, so that
someone who gets a computer for their classroom can see what software works
and will run. (All her computers are Mac IIci or less (68030 or lower)
(though we've got one IIci with an '040 board in it to go in, as soon as I
get a chance to clean up the hard drive and such.))
>>> prejudiced on the side of reading over computers -- I only have
>>> fifty-odd computers, I've got [half bought new] several thousand
>>> books, mostly the science fiction I've loved since before the
Well, I've only got about a 1000 books, and about 100 computers, but
there's a lot more in the house (my folks had a whole wall of bookshelves
put in when they bought the house). I too would say that if you can't
read/write (communicate)/count, a computer's not going to do you much good
in the long run -- it can't do that for you. (In fact, it will get you to
do more of the above.)
Anyway, sorry for the ultra-long rant...
--------------------------------------------------------------------- O-
Uncle Roger "There is pleasure pure in being mad
roger(a)sinasohn.com that none but madmen know."
Roger Louis Sinasohn & Associates
San Francisco, California http://www.sinasohn.com/
Hi all,
> The relevant documentation is "MSCP Basic Disk Functions Manual",
> AA-L619A-TK, and "Storage System Diagnostics And Utility Protocol",
> AA-L620A-TK, which in turn are parts of the UDA50 Programmer's
> Documentation Kit (QP-905-GZ). My copy is version 1.2, April 1982.
anyone has this documents here, and don't need it anymore ?
thanks,
emanuel
OK, the other chips are:
Hitachi HD74LS32P
367AP
240P
164P
MB74LS00
138
TI J549X SN74LS541N
The card has a weird logo: A large S, progressively narrowing toward
the top.
Could someone tell me about the actual drive?
>They're probably TTL buffers/address decoding logic. Can you post the
>numbers (which probably start 74LS) and we'll try to identify them and
>guess likely functions.
>
>My guess is that this is some kind of custom parallel interface. Put
the
>8255 into Mode 2 and you've got a bidirectional data path on port A and
>control lines on the other 2 ports. That's the most likely setup
>(although it might be something totally different, like using one port
>for input and another for output).
>
>-tony
>
>
______________________________________________________
Get Your Private, Free Email at http://www.hotmail.com
I hope that this is marginally on topic - the technology is over 10 years
old and it is about using an old machine even if the OS is brand new.
I have a PS/2 Model 30 and am taking part in testing the ELKS port of Linux
to the XT architecture. On the PS/2 ELKS cannot see any keystrokes, having
booted OK. Does anyone (Tony?) have a techref for this machine and if so
what is the difference between this and a 'normal' XT. I am thinking that
perhaps the keyboard buffer may be at a different place in memory thus DOS,
using the BIOS, can see it but we can't by looking directly at the hardware.
TIA
Pete
Found this on Usenet. Can anyone help out? If so, please respond directly
to the author of the message.
Thanks.
-=-=- <snip> -=-=-
On Wed, 13 May 98 15:22:55 CST, in comp.unix.ultrix you wrote:
>>From: Mike.Hoff(a)CRHA-Health.Ab.Ca (Mike Hoff)
>>Newsgroups: comp.unix.ultrix
>>Subject: Old DECstation
>>Date: Wed, 13 May 98 15:22:55 CST
>>Organization: Unorganized.
>>Lines: 10
>>Distribution: world
>>Message-ID: <This.644(a)Somewhere.COM>
>>NNTP-Posting-Host: veena.cc.uregina.ca
>>Path: blushng.jps.net!news.eli.net!uunet!in3.uu.net!ais.net!newsfeed.wli.net!news.he.net!news.pagesat.net!decwrl!tribune.usask.ca!news.uregina.ca!(a)somewhere.com
>>
>>
>>Sorry to bother you, but I'm not sure who to talk to (and Digital wasn't
>>much help). I have an old Decstation 2100 dug out of the basement - is
>>this worth anything? Any idea where this equipment could be taken for
>>repairs and OS help? Any information you can give me would be
>>appreciated.
>>
>>Please reply to Mike.Hoff(a)CRHA-Health.Ab.Ca directly as I do not have
>>Usenet access from my office.
-=-=-=-=-=-=-=-=-
Bruce Lane, SysOp,
The Dragon's Cave BBS (Fido 1:343/272)
kyrrin {at} j<p>s d[o]t n=e=t
"...No matter how hard we may wish otherwise, our science can only describe
an object, event, or living creature, in our own human terms. It cannot possibly
define any of them!..."
OK... remember that Arthur J. Carp fellow... well, I got a copy of Warp 3...
3.5" disks. (It's been a while...) Anyway, this is semi-on topic, as
OS/2's a pretty good story, and older versions are classic.
So here's the deal. I can get all the way to Disk 6, then I re-insert
the Install diskette. Then, it asks me to reboot. I reboot, and it's not
there. I also have Windows 95 on this system. So how do I: Get past that
2) Get to see the drive's contents (it's not the same C as FAT 32 sees
it...)
Thanks,
Tim D. Hotze
If you need anything or need any information about Apple /// (SARA)
the best place is Washington Apple Pi. They are a group dedicated to all
apple and mac hardware and software. Mr. Dave Ottalini is the historian
and librarian for the apple ///. To get help from him or any other
person ap WAP, you need to join the club.
I just shipped the VT 100 and VT 220 that I had without keyboards. I
gave them away for the shipping and a few people in the list had told me
that they have extra keyboards for sale/trade/free (I don't remember)
but the newe owner in New Hamster is looking for a keyboard for each one
and if those people that have them could write me back (direct email) I
can relay the message to him.
Thanks guys and gals.
--------------------------------------------------------------------
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 have such a beast, it is a Model 1083 (I believe). Unfortunately I
don't have any other information on it. It's rather heavy for such a
slim luggable. Perhaps it is better described as a lugtop? Laptop on
steroids?
Marty
______________________________ Reply Separator
_________________________________
Subject: Visual Computer Inc. Commuter US
Author: classiccmp(a)u.washington.edu at internet
Date: 5/13/98 5:33 PM
Anyone heard of such a beast. It's a rather large "laptop" with a scrunched
lc
d
display. Has two half height 5 1/4 floppies. From the keyboard it looks like
a
pc clone, but it also has a db25 terminal out port on the back.
TIA
George
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From: "George Currie" <g(a)kurico.com>
To: "Discussion re-collecting of classic computers"
<classiccmp(a)u.washington.edu>
Subject: Visual Computer Inc. Commuter US
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Greg Troutman <mor(a)crl.com> wrote:
> I spent a little more time on this guy and have finally gotten the tape
> drive to work--sorta. The rubbery roller in the center to the left of
> the head is seriously corroded away (as if some anti-rubber solvent or
> high heat came in contact with it) which makes it not work too well.
The rubbery bits used on these drives seem to be going gooey, at least
out here in the San Francisco Bay Area. It's also happening to
the similar drives used in HP264x terminals. (Gotta get around to
fixing that one on my desk....)
> Now, questions: I have a ROM Drawer filled with six option ROMS like
> Assembler, Input/Output, Mass Storage, etc. First, how do I implement
> the physical link to the I/O devices?
You need an I/O card of the appropriate type to plug into another one
of those slots on back. HP-IB is fairly common and is what you would
use to hook up disk drives.
-Frank McConnell
If the floppy works, the DMA controller works.
If you really want to exercise it, install a Sound Blaster.
Kai
-----Original Message-----
From: jpero(a)mail.cgo.wave.ca [mailto:jpero@mail.cgo.wave.ca]
Sent: Monday, May 11, 1998 12:07 PM
To: Discussion re-collecting of classic computers
Subject: question - how to test DMA on peecees right way?
Assuming I have basic stuff, working parts except for motherboard
under test.
How can I assure that chipset that contains DMA controllers is
working as intended?
software I have is very limited and only tests very basic functions
like checkit, sysinfo etc.
Remember I only have limited RAM (1mb) to play with.
Thanks
Jason D.
email: jpero(a)cgo.wave.ca
Pero, Jason D.
Anyone heard of such a beast. It's a rather large "laptop" with a scrunched lcd
display. Has two half height 5 1/4 floppies. From the keyboard it looks like a
pc clone, but it also has a db25 terminal out port on the back.
TIA
George
Hello,
My my name is Cliff Boyer and I too have a Kaypro 10 problem.
I think mine is in the power supply. I plug it in and turn it on and nothing
happens. No lights, beeps, chirps, drives whirling. Nothing!
I checked fuse on the back panel and it's OK. Is there a fuse on the P/S
board located on the inside of the back panel?
The machine was given to me, but I have no disks or manuals. However it is
in excellent shape. I hope the hard drive is OK.
If I cant get this machine going, I hope to get Anthony Clifton's QX-10 so I
can see what a CP/M computer is like!
Anyone have any thoughts?
Cliff
P.S. Hey Grant, If mine is not fixable, I may have a HD for you!
Anyone interested, please contact Mr. Lin directly.
-=-=- <snip> -=-=-
On Wed, 13 May 1998 13:15:47 -0500, in comp.os.vms you wrote:
>>From: Chihfang Lin <chihfang(a)pop.ruf.rice.edu>
>>Newsgroups: comp.os.vms
>>Subject: VAX 6560 for Sale
>>Date: Wed, 13 May 1998 13:15:47 -0500
>>Organization: Rice University, Houston, Texas
>>Lines: 15
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>>CC: chihfang(a)rice.edu, prscott(a)rice.edu
>>Path: blushng.jps.net!news.eli.net!news.burgoyne.com!news.eecs.umich.edu!nntprelay.mathworks.com!news.mv.net!newspump.wustl.edu!rice!not-for-mail
>>
>>Greetings:
>>
>>My department has put a surplus VAX 6560 / w SF200 for sale on Rice's
>>Greetsheet. The individual bid period is from May 18 to noon of May 22.
>>If you are interested, please check "http://dacnet.rice.edu/~gs/" or
>>call me for details.
>>
>>Thanks,
>>
>>Chihfang Lin
>>Sr. Systems Administrator
>>Administrative Systems, Rice University
>>(713) 285-5967 chihfang(a)rice.edu
>>
-=-=-=-=-=-=-=-=-
Bruce Lane, SysOp,
The Dragon's Cave BBS (Fido 1:343/272)
kyrrin {at} j<p>s d[o]t n=e=t
"...No matter how hard we may wish otherwise, our science can only describe
an object, event, or living creature, in our own human terms. It cannot possibly
define any of them!..."
>Hmmmm....7th grade. I got my Atari 800xl in seventh grade. Not a single
I built my own computer in 7th grade. Of corse, that was a PC...
>computer in my school, and that was even in a rather large city
>(Pasadena). We found a lot of other things to occupy us, though, like
>finding creative ways to get over (and under) the 8 foot chain-link fence
>around the school and over to taco bell or the Pac Man arcade. I spent all
Early 80's? My art teacher says that lots of high school students were
depressed....
>of my "home" time drinking Tang, programming my Ataris, and listening to
>Black Sabbath. Funny thing is I got all A's and B's in my classes, with an
Same here.
>attendance ratio of about 2/3 and a homework ratio of about 1/4. Does that
I wish I could do that!!!! I spend around 1/3-1/6 of my time working, the
rest talking. I wish that I could do that little homework!!! Honestly,
homework's the worst thing. If it were just "go to school, come home live
your life" it would be so cool!!!
>say anything about the quality of California's public education? I can
>only imagine that it's even better now....
Yep. Now, the thing is that with my science fair project, none of the
judges understood what I was talking about (Linux Vs. Windows), so a rather
stupid project (bacteria growing in hot water) won. Anyone else have
problems like this in Science Fair(s)??? It was way to technical, even
though it was scaled down A LOT. I couldn't say what I wanted to say so
that these people could still understand it...
>Aaron
Tim D. Hotze
I spent a little more time on this guy and have finally gotten the tape
drive to work--sorta. The rubbery roller in the center to the left of
the head is seriously corroded away (as if some anti-rubber solvent or
high heat came in contact with it) which makes it not work too well.
Cleaning it up as best I could, and then doing multiple retries, getting
frequent READ or SEARCH errors, have allowed me to store and retrieve
some simple programs. I guess I'll be opening this up and trying to
replace that.
Now, questions: I have a ROM Drawer filled with six option ROMS like
Assembler, Input/Output, Mass Storage, etc. First, how do I implement
the physical link to the I/O devices? There are zero physical port
connections on this box...(?) Second, how do I access the ROM code from
the BASIC prompt? I'm sure there's a lot of tricky stuff involved,
making the manuals indispensible, but since I don't have them, any quick
tips would be appreciated.
--
mor(a)crl.com
http://www.crl.com/~mor/
>Elementary school, how to learn. (language, reading, arithmetic)
Yes, but computers are an important part of that. They need to know how to
use them at an early age; even if it's not in school.
>Intermeadiate school, how to find answers to questions and communicate
>them.
I say this goes to Elementary. In Jr. High, where I am now, most people are
either lazy, "special-need" or both. On top of that, they've got SEVERE
hormonal problems... it's important to know that you can't count on anyone
to learn anything in perticular, except for stuff pertaining to... anyway, I
think that here's a good time to give students a choice to know what they're
going to do. I, for instance, want to specilize in Computers. Spending
time learning "Pre-Algebra" (Just spent 2 class periods making a protractor
accurate to 90' from a piece of paper.) isn't helpful, at least not that
much, espcecially when I could cover the entire book in a week or two. (But
my math teacher wants it "BIGGER, BETTER, NICER, NEATER." And I was done in
5 mins. out of 100!!!!)
>High school, take the first two to the next levels and add skills needed
>to find paying work.
I say that some students should be given the oppertunity to do this in Jr.
High. Not everyone, but some people. After all, by this time, you know if
you're not going to be a chemist, programmer, or anything.
>Computers are a part of life and M$ stuff is unfortunatly reality we live
>with every day. The unfortunate part is I meet kids at the grocer that
>play doom, surf the net and can't count change.
Ease of use. It happens. ;-) But seriously, the math program here doesn't
EVER cover basic math, just expects you to learn it. Now, I was fortunate,
and learned how to do that before moving here.
>Allison
-Tim D. Hotze
Tony Duell wrote:
> I'm pretty sure the teletype is a passive device and expects the other
> device to source the loop current.
>
> 5V should be enough for the transmitter loop (which is just switch
> contacts), but I doubt if it would be enough for the receiver loop (more
> like 12V or more here)
I used a TTY ASR-33 as a printer for my PET years ago. My memory is
that if I left the receiver open circuit, i yammered away printing
nulls; if I shorted out the loop it didn't. I interfaced it using one
transistor - no power supply was necessary.
+----------------------
|
OUT b |/c
-------/\/\/\/---------| NPN TTY
|\e
PET |
-------------------------+----------------------
GND
Note: I never interfaced the TTY transmitter - not even for reading
paper tape (don't know why not)
Philip.
> -----Original Message-----
> From: ard(a)p850ug1.demon.co.uk [SMTP:ard@p850ug1.demon.co.uk]
> Sent: Tuesday, May 12, 1998 7:15 PM
> To: Discussion re-collecting of classic computers
> Subject: Re: Grundy Newbrain Computer wont power up.
>
> >
> > Can anyone help me bring an old British Computer back to life.
> >
> > Last night I bought a early 1980's Grundy Systems Newbrain "AD"
> computer
> > from an advert in the local newspaper.
> > (See http://www.ndirect.co.uk/~e.tedeschi/picts/newbrain.jpg)
> >
> > The machine is in good condition, with original manuals, cables,
> psu,
> > and even some software.
> >
> > Unfortunately it wont power up.
>
> I have the Newbrain schematics somewhere if that would be any help.
> Unfortunately I don't have schematics for the PSU, but I think that's
> a
> pretty simple linear unit.
[Keeble, Andy] I only had a quick look at it the previous
night, but had a bit more in depth look last night. It does look like a
PSU problem, and yes the PSU looks straghtforward enough.
> >
> > Turning on, the LED display flickers and goes blank (although the
> manual
>
> Actually, it's a fluorescent anode display (see the other
> thread...)...
[Keeble, Andy] Indeed, I only saw a quick flash on power up,
and presumed it was led. When I opened it up last night I got a better
look.
> > says it should do this, although I don't get a test pattern which I
> > think I should) On the Television/video output I just get a white
> > screen.
> >
> > Does anybody know if these machines suffered from any common faults?
>
> Check the PSU. The easiest way to do this is to check the 3 supply
> lines
> at the 4116 DRAM chips (+5V, +12V, -5V). If any are missing or
> incorrect
> then the machine won't power up.
[Keeble, Andy] The PSU says something like +6v +12v and -13v. I
found the +12v ok, but the other two outputs are showing +20v, so I
guess its a voltage reg problem. (These are offload values).
> Check the inter-board ribbon cables for broken wires (they're solid
> core
> and break easily).
[Keeble, Andy] I will check that, but I suspect I may have
already found the fault, due to the high readings from the psu, just
hope it has damaged any chips in the machine?
> Apart from that, if the PSU is OK, you're going to have to
> troubleshoot
> this one starting at the Z80 (what is it doing) and working through
> the
> logic. I don't know of any stock faults on these machines.
[Keeble, Andy] I thought before spending hours, I would ask
folks on the mailing list, just in case there were any common problems.
I used to work in a computer shop in the early 80's and several makes of
machines came in with the same fault. We didnt deal with Newbrain back
then, so I didnt get any experience of them. If I get the PSU working,
and find I need a schematic, would you be willing to scan a copy and
email it, or photocopy and post it (I would pay any expenses). There
seems to be little info about the Newbrain on the net, and I guess not
that many still exist, so it seems a shame not to try and put some
effort in trying to get this one working again.
> -tony
Ok, whilst on the subject of big old CP/M machines..
I've got an old Philips P3800 machine, in a grey cabinet about 1 metre
deep, maybe 80cm high and 40cm wide. Tracking down any info on it has
proved impossible so far; has anyone got one of these they could share
information about, or know anything about them?
It was damaged in a flood a few years ago, the switchmode PSU in it has
failed and just gives a whining noise when power is applied - I seem to
remember I tried loading the PSU without connecting it up to the system
backplane or drives, so I think it really has failed rather than there
being a short or anything within the system.
The hard drive (I *think* it was a10MB Seagate full-height, sadly my
entire collection is a couple of hundred miles away from me so I can't
check!) controller board went with a bang when power was applied - can I
simply swap in another board from an identical drive in the hope that
this'll work, or are boards calibrated in some way to their respective
motors? I tried this swapping with another identical drive and the drive
span up ok, so maybe it would work... I don't know what state the data
on the drive it in though.
Other info needed:
Tape drive - mine is missing, having been put in another machine years
ago. Anyone know what sort it was, and will the system run without it?
Cabling - what sort of terminal could be connected to the cables hanging
out the back of the machine? Are they RS232 in which case a vt100 could
be used?
Was there the concept of a console, or would the machine silently boot?
What was needed to boot the machine? Would it boot from hard drive, or
was a floppy needed? (I have zero docs and disks for this thing
sadly...)
Phew! That'll do for now I guess! :*)
cheers,
Jules
>
>3) The fuse is fine, but the PSU won't start up. This is suprisingly
>common (I've had it twice in the last month). Most small SMPSUs run the
>control circuitry off one of the transformer outputs, which leads to a
>bootstrap problem (the PSU can't run without the control circuit, but the
>control circuit can't work without the PSU running). The solution is a
>small circuit to give the control circuit enough power to start. In a lot
>of cases this takes the form of a high-value resistor chain from the HT+
>(400V DC) line to the chopper control circuitry. And for some reason this
>resistor open-circuits. It's worth checking all high-value resistors on
>the primary side.
>
>When you've inspected the fuse, get back to us and we'll attempt to talk
>you through the PSU...
>
>-tony
>
>
>
Well, I checked the fuse on the P/S, and its OK. So what is the next step?
Is this something I can take to a repair shop. I know of a TV & stero shop
that has worked wonders on an old Pioneer amplifier of mine. A P/S should be
of no problem for them. I would like to attemp to fix my self, but I just
don't have that sort of time at the moment! Or can anybody recommend someone
I can send it (the power supply only) to for repair?
Cliff Boyer
Tony Duell wrote:
>The first requirement is that you're mad.
Now that you're foaming blue at the mouth, you could give the speech
about how to use the keyboard interface chip to bring the 286 into
real mode and back again... :-)
- John
Jefferson Computer Museum <http://www.threedee.com/jcm>
When was this thing with "computer literacy in schools is everything"
started? I like computers in schools, but I am tired of looking at
proposed plans to replace 5 MORE classrooms with computer labs. Is
this a classic thing? Would you in general say that computers have
affected education (keeping the discussion OnT, of course).
>
>> snoball wrote:
>> >
>> > Hi, I am a teacher here at the local elementary school in Humble,
TX. To be
>> > honest, the computer department here at the school is rather
pathetic, two
>> > Apple //e's and an XT that was donated that I can't get to work.
To be
>> > frank, these kids are going into a world where they are illiterate
in the
>> > basic workings of a computer. I hate to sound desperate, but I
have just
>> > exausted all leads I know to take on the matter. I saw your ad and
thought
>>
>> Don't panic. Here in New Jersey, the kids are all experts at
>> Nintendo (and some of the brighter lights at hacking security),
>> but damned few can actually read the manuals. Remember, the
>> most important component of "computer literacy" is "literacy".
>> If the kids can read, they can learn computers. If they can't,
>> there's not much else worth teaching them except to pee on the
>> side of the dumpster the cops aren't watching. (I may be a bit
>> prejudiced on the side of reading over computers -- I only have
>> fifty-odd computers, I've got [half bought new] several thousand
>> books, mostly the science fiction I've loved since before the
>> "New Math" was introduced to my grade school [after I'd had the
>> benefit of learning the stuff that worked].)
>> --
>> Ward Griffiths
>> They say that politics makes strange bedfellows.
>> Of course, the main reason they cuddle up is to screw somebody else.
>> Michael Flynn, _Rogue Star_
>
>
>
>
______________________________________________________
Get Your Private, Free Email at http://www.hotmail.com
Hi, I just joined this list a couple of weeks ago and it is great. Lot's of great
information. I have two quick list related questions.
First, is this list being archived somewhere. Just in the two weeks I've been on,
it's obvious that there is a huge amount of informational wealth being
disseminated. And as any collector of older computers knows, information is
the most essential element of collecting (that and software on the proper
media).
Second, does anyone know of any other lists that focus specifically on
collecting?
TIA
George
>At 10:20 5/13/98 -0500, Russ wrote:
>>....I don't see
>>anyone paying up to $15000 for a 1977 Apple computer of any model.
>
>I have personally watched three Apple Ones sell for, respectively, $12,000,
>$15,500, and $22,000. The high one was at the Computer Bowl a couple of
>years ago, the other two were private collectors, and none was ours (the
>one at Fry's).
>
>__________________________________________
>Kip Crosby engine(a)chac.org
> http://www.chac.org/index.html
>Computer History Association of California
>
and there's a hint that one sold for $50K in the Apple docs online at
http://www.grin.net/~cturley/USA2WUG/FOUNDING.MEMBERS/HOME.PAGES/STEVE.W/A1
/The%20Index.Page.html
can anyone confirm this price?
Last weekend I was at a garage sale where I spotted a c64 with an
interesting job. It was connected to a mixing board to provide automation.
That is, the c64 was used to control the functions of the mixer so as to
be able to repeast a setup exactly. Pretty neat, and I wouldn't have
minded getting it (I've been lusting after 8-bus multichannel mixer for
years) but I couldn't justify the $1300 the guy wanted for it. 8^(
Came with an interface box, btw, that had the software in it (presumably in
ROM) for the automation.
--------------------------------------------------------------------- O-
Uncle Roger "There is pleasure pure in being mad
roger(a)sinasohn.com that none but madmen know."
Roger Louis Sinasohn & Associates
San Francisco, California http://www.sinasohn.com/
This is a long shot, but what the hey...
I have a 10 or so year-old satellite clock that gets its time signals from
the GOES birds. It works very well indeed, but some of the display elements
are beginning to get dim. It uses seven-segment neon-discharge displays.
The first group of three is the day of the year. The next three pairs are
hours/mins/secs. The day of year and seconds are the ones that are going
dim. Does anyone know of a source for replacement displays of this type?
(Are these what Burroughs called 'Panaplex?')
Also, Daniel Seagraves has discovered that his RSTS 10.1 tape is trashed.
Does anyone else happen to have RSTS 10.x on 9-track that they'd be willing
to loan long enough for me to do a bit-copy of it?
Thanks in advance.
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Bruce Lane, Sysop, The Dragon's Cave BBS (Fidonet 1:343/272)
(Hamateur: WD6EOS) (E-mail: kyrrin(a)jps.net)
"Our science can only describe an object, event, or living thing in our own
human terms. It cannot, in any way, define any of them..."
In a message dated 98-05-13 09:10:41 EDT, you write:
<< OK... remember that Arthur J. Carp fellow... well, I got a copy of Warp
3...
3.5" disks. (It's been a while...) Anyway, this is semi-on topic, as
OS/2's a pretty good story, and older versions are classic.
So here's the deal. I can get all the way to Disk 6, then I re-insert
the Install diskette. Then, it asks me to reboot. I reboot, and it's not
there. I also have Windows 95 on this system. So how do I: Get past that
2) Get to see the drive's contents (it's not the same C as FAT 32 sees >>
if youve got win95 on there, you'll need to setup boot manager. i have two
machines in a triple boot setup; pcdos7-win3.1/win95/warp and win95/nt/warp
message me privately if more details are needed.
david
<controller identification. OEM'd WD100x's like those in the Kaypro and
<Perkin-Elmer 7300/7350 Unix boxes do not have this feature (or
<the debug program to use it).
<
<Bill
<who owned a number of WD1001 and WD1002-HDO controllers.
Err Bill,
The kaypro had DDT (cpm debugger). ;) You are coorect in that the -HDO
and SCSI version did not have the rom that the XT had to have to over come
the limited bios in the machine that didn't know about the HD.
Allison
At 03:28 AM 5/13/98 -0500, Doug Yowza wrote:
>
>On Tue, 12 May 1998, The Adept wrote:
>
>> I almost choked on my Leinenkugel's when I saw the current bid on the
>> following:
>
>What's a Leinenkugel, and how much will you sell it to me for?
Wisconsin beer, see <http://www.leinie.com/>. Good stuff for $5.20
a six-pack of bottles. Just to keep it on topic, it's not far from
Cray Research in Chippewa Falls, Wisconsin. Cray's web site doesn't
advertise a real tour but there's a virtual one. Leinie's has a real
tour with free beer. And if you're touring, don't forget the pie at
the Norske Nook in Osseo.
>Is this the Commie holy grail or something? I've never seen an old
>Commodore go for over $500 before.
Perhaps Someone should make a web site with reports of classic
system sale prices, in order to balance the tales of $500 PETs
with $5 PETs. Like anything else, so many other factors must
be considered: rarity, condition, history, etc.
- John
"The value of a thing
Is what that thing will bring."
- Ancient Legal Maxim
Seriously, note that the last two bidders have a zero experience rating, and the high bidder is from AOL. We won't know what the third bid was until
after the auction, but he's the only bidder I'd take seriously.
By the bye, I recently bought a DEC terminal from this seller, and found them to be both conscientious and professional.
The Adept <adept(a)mcs.com> on 05/12/98 09:54:08 PM
Please respond to classiccmp(a)u.washington.edu
To: "Discussion re-collecting of classic computers" <classiccmp(a)u.washington.edu>
cc: (bcc: Bill Sheehan/Corporate/SWEC)
Subject: Another EBay absurdity
I almost choked on my Leinenkugel's when I saw the current bid on the
following:
http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItem&item=13839197
I'll save the surprise for you who want to check it out (it's a
Commodore Educator 64)
Cheers,
Dan
<c800:5) to make sure it contains a jmp instruction. Other locations
<that I've seen include c800:6 and cc00:5.
In an earlier mail the controller was moted as a WD1002HDO in a kaypro.
That tells me mountains, one there is no ISA, NOT PC. The HDO is a host
interface essentailly a gerneral interface like a PIO chip. Also the
wd1002HDO has no boot or bios roms. The K10 is a z80 machine so c800:5
is not relevent as it's 16bit address.
using VAX/VMS notation:
$user1:> set device/flame_thrower/temp=plasma
Most non-PC systems are _not_ PCs and applying PC part numbers, addresses
methods, installation tools, device notation, buses, and dos operating
system to the non PC results in confusion if not outright error.
$user1:> set device/noflame
Allison
Grant Zozman wrote:
> Is the case white?
> Is there a red power switch surrounded by black plastic at the lower
> right corner on the front?
> Do the drives close using levers which twist 90
> degrees? Is the keyboard also built into the case?
> Does the screen blink off and on when the drives are being accessed?
> Weighs as much as a pallette of bricks?
>
> If so, I believe you have a 5120 (or possibly a 5110). These were
> produced around 1979-1980 just prior to the introduction of the PC.
> They would run either BASIC or APL, and could be equipped with an
> external disk drive module which was the size of a small filing
> cabinet, rolled on casters, and housed two additional 8" drives. A
> wide carriage dot matrix printer was also available. If I remember
> correctly there are three connectors on the back of the case of the
> computer in a triangular shape, with a threaded hole for a bolt in the
> middle. This is where the printer & drive unit connected.
>
> You might want to look for a silver tag on the back of the machine; I
> always thought IBM was pretty adament about putting a model number on
> anything they produced, but I don't remember there being any tags on the
> front of the machine I worked on years ago.
>
> Hope this helps! If you find out what you have, I would be
> interested in knowing the final outcome; I have heard others refer to
> a machine which fits this description as a "Datamaster", but have no
> idea what would make it different from a 5110/5120.
That mostly tallies with my memory of my Datamaster (which I haven't
powered up in ages). Mine is a 5322, and calls itself System/23
I've never met the 5110 or 5120, I'm afraid.
Word of warning: If you have a Datamaster and power it up without the
printer it fails diagnostics. However, if you then press the Error
Reset (or some such name) key, it goes on booting (into ROM BASIC) quite
happily.
But what's this in the subject line? IBM never made a Z80 CP/M box that
I know of. The Datamaster had an 8085, but didn't run CPM AFAIK; the
Displaywriter had an 8088 and ran CP/M86 as an option.
(Displaywriter: Much more modern styling. Tilt and swivel screen,
separate dual 8" disk unit, separate keyboard. Looked not unlike a PET
8032SK.)
Philip.
Here's the last of the old and new terminal units I have - I have one
remaining Hewlett Packard 700/44 with amber video. Has a current loop
and rs-232 connector and comes with a like new keyboard. Works great,
looks lke new.
$15 plus shipping (22 lbs) or I may trade for a few odds-n-ends that
equate to the cost. Of course the buyer pays the shipping unless a trade
is worked out at an equivelant rate.
Thanks to everyone for allowing me to put these up which also kept them
out of the landfill. Many people out my way would have no idea what they
are and they'd become dumpster filler if I hadn't found homes for items
such asd the VT 100 and 131.
--------------------------------------------------------------------
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*
--------------------------------------------------------------------
Hi. This is semi-off topic, but I'm sure that if any replies are made,
it'll eventually spin off to someone's tales of their PDP-8 in high school,
or their first VIC-20...
Anyway, as much as I can complain that I'm not getting a decent
computer-education in school, I owe a lot to them.
My first year here in Bahrain, I had just got my computer (a blasing
fast 486 33!!!), running (what else) Windows 3.1 and DOS 6.22. I didn't
know how to type, just use basic functions. I could get on CompuServe (at
least in the US), etc. but not do anything "powerfull" I could launch
CD-ROMS, install programs since I was 8, in 3rd grade. Then, in school that
year, I learned to type. A significant 40WAM. (I thought this was
miserrable, but now in typing, many 7th graders got like 19's, 25's...)
Anyway, that gave me my basic computer skills. Now, in 6th grade, when
I next did serious typing (4th grade was a mess, I skipped 5th grade), I
found that my typing increased to 80WAM. (WPM??) Now, I find it's at
100-140. I owe all that to the school. Without learning how to type, I
would never have gotten interested in e-mail, programming, computer science,
CAD, grapics, number crunching, UN*X, or hardware stuff.
Then, earlier on this year, I was asked to help make a computer couse
for my grade at school. For the first couple weeks we wouldn't have a
computer lab. So I did what I thought would work: Talked about the workings
of a computer. Terms like OS, HDD, RAM, CPU, bus, HTML, web, modem, etc.
Since then, I've been working to set up a browser-based Intranet. It's
been a heck of a lot of fun, if not educatonal.
Just my $0.02...
Tim D. Hotze
If all else fails you may want to try a low level format on the hard
drive. Boot with a MS-Dos ver 2.10 or later, run debug. At the '_'
prompt type in g=c800:5 which should access the controller rom and
enable you to low level format (it is <crudely> menu driven). Your
Tandon has 306 cylinders, 4 heads and 17 sectors per track. After the
low level format procede with the high level partitioning and
formatting.
-Marty
______________________________ Reply Separator
_________________________________
Subject: Help Needed: Kaypro 10 HDD Problems
Author: classiccmp(a)u.washington.edu at internet
Date: 5/11/98 9:27 PM
I recently added a Kaypro 10 to my collection, but it seems to have met with
some rough handling
in shipping. If anyone can shed some light on the problem described below, I
would REALLY
appreciate it (any Kaypro experts out there?)
When I first fired it up, it booted from the hard drive right away. However,
as soon as I tried
to access the HD further, all I got were "Bad Sector" errors. Since then, the
computer will no
longer boot from the HD, and I can't access any information on it ( not a
good
sign :-( ).
Using CP/M, I have tried to re-format the drive with no luck; all I get are
"Verify Errors" as it
tries to format. So much for the theory that the heads may have gotten
knocked
slightly out of
alignment!
Re-seating all connectors on the drive and controller didn't help either.
I have pulled the drive from the computer and hooked it up outside the case.
It does spin up to
normal operating speed, and I can see the head stepper motor responding in a
normal fashion when I
attempt to access the drive (formatting, parking the heads, pulling a
directory, etc.). None of
the linkage to the heads seems damaged or broken; in fact the entire computer
is in excellent
shape and has not been abused. The hard drive activity light (which is
controlled from the drive
itself) also seems to respond normally.
No untoward noises seem to come from the unit when it is operating, although I
do hear some
metallic "singing" during the last second or so just prior to the drive coming
to a complete stop
on power down. I'm not sure if this is just the brake mechanism, or if it is
the heads against
the platters (I do park the drive prior to powering off, though).
Based on the above, I am assuming (wrongly so?) that the controller is
probably
working OK. It is
a Western Digital WD1002-HDO. My hunch is that either the drive electronics
or
the drive itself
have failed.
Are there any other tests I should by trying? Am I correct to assume that it
is the drive which
has failed?
The drive is a Tandon TM502 (10MB, MFM, 5 1/4" platters). If the drive cannot
be salvaged, I
would appreciate hearing from anyone who has a replacement drive, or knows of
a
source for same.
I would like to keep the same make and model drive if possible, but an
equivalent model would be
fine too (as I'm sure Non Linear Systems used more than one make of drive in
the Kaypro's).
Any help is much appreciated!
Grant Zozman
gzozman(a)escape.ca
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Date: Mon, 11 May 1998 20:24:38 -0500
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From: Grant Zozman <gzozman(a)escape.ca>
To: "Discussion re-collecting of classic computers"
<classiccmp(a)u.washington.edu>
Subject: Help Needed: Kaypro 10 HDD Problems
References: <199805112323.TAA12647(a)mail.cgocable.net>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit
X-Listprocessor-Version: 8.1 beta -- ListProcessor(tm) by CREN
... and I wanted to introduce myself.
I'm a student at the University of Washington; I subscribed to the list in
hopes that there would be some local members. So far, I'm not sure. Some of
your names are familiar from alt.folklore.computers but many are new.
I'm a computer-science major. Most CS majors here don't seem to be very
interested in old machines, unfortunately. They must be dazzled by all the
Windows NT machines we have (which were given to us by Intel and don't work
very well, thanks to overstressed/inept/inconstant administration).
I'll probably read more than I post -- I don't have detailed experience with
the popular machines, because I don't _have_ the popular machines, because I
live in a dorm room. But I do have experience with the Apple ][, and a Kaypro
which I'm resurrecting (thanks to Don Maslin and his awe-inspiring collection
of CP/M disks) and some HP calculators and some emulators on my Macintosh.
By "popular" I mean "popular with the readers of this list," not "popular with
people in general."
So... who's from Washington? And BTW, is there a working Web site/archive/FAQ
for this group? I can't seem to connect to the bothell machine, even though
it's part of my own school.
Thanks,
-- Derek
Would you allow CP/M? BOCHS Unix emulator? Macintosh?
I will say only one thing: don't try to go back - it will never be
the same, and you will only be disappointed (yes, I know you're only
kidding). I don't really use USENET because it's a pain...
>
>Hell, I was on the Usenet when it was just a partial feed from a
>friend at Cal Tech to my little TRS-80 Model 16 two miles away
>with its 15-Meg HD that could handle a month's worth of my partial
>feed at a time (a full feed would have choked it in less than a
>week -- if I could handle the bandwidth) at 1200 baud back in the
>stone age (1986-7), when bang-path email could take a week or more
>to turn around. Usenet was a bit surreal in those days of
>_severely_ asynchronous communication (not the modems, just the
>messages crossing paths). I loved it, and if the over-advertised
>Internet keeps screwing up, 56Kbps modems (and 10-321 or whatever
>the latest long distance cheap service is) would let us build a
>better new Usenet than there used to be. And anybody who gave
>the phone numbers to AOL, Hotmail, any such scum, or ever allowed
>a binary file that wasn't uuencoded (and useful -- no hundred-part
>fuzzy porn need apply) to go through would be flogged from all of
>the L.sys or Systems files forever. Oh yeah, this would of course
>be *nix based (Unix, Linux, Sunos, etc.) as the gods meant it to
>be -- PCs are welcome only as terminal emulators if they're
>hosting parasites such as Windows or MS-DOS.
>--
>Ward Griffiths
>They say that politics makes strange bedfellows.
>Of course, the main reason they cuddle up is to screw somebody else.
> Michael Flynn, _Rogue Star_
>
______________________________________________________
Get Your Private, Free Email at http://www.hotmail.com
I have been given an Amiga 600HD. It seems to work but wont boot.
Investigation showed that althought there was a harddrive there was no
power going to it.
Does the machine use standard IDE drives, if so where did it poer up from,
there is no power socket adjacent to the IDE socket on the board. I suppose
that a Y cable connected to the supply going to the floppy would work.
Cheers
Keith Whitehead
+----------- Keith Whitehead -----------+
| Physics and Chemistry Depts |
| Massey University |
| Palmerston North |
| New Zealand |
| |
| Ph +64 6 350-5074 Fax +64 6 354-0207 |
+------------------------------------------+
Well, if someone will send me the 486's, I'll build and test 'em...that's my
main business. -- I'm very low on everything, though, so I need your
components.
manney(a)lrbcg.com
"Un sot trouve toujours un plus sot qui l'admire."
I'm sorry that this is OT, but I thought everyone should know that
Apple has announced that upcoming laptops will NOT support SCSI or
floppy drives (according to MSNBC). It's nice to know that now that
Steve Jobs is back, Apple's gotten back to innovationg and changing
stuff. I doubt the market cares, however.
______________________________________________________
Get Your Private, Free Email at http://www.hotmail.com
Anyone interested in one? Excellent condition (still with packaging) and
manuals.
manney(a)lrbcg.com
"Un sot trouve toujours un plus sot qui l'admire."
Hmmm. Never heard of that but I don't think that's what he has. I had the
impression that his drives are part of the main unit. Dammed shame your
drives were scrapped out. I'd love to have one for my 5100.
Joe
At 08:49 PM 5/12/98 -0400, you wrote:
>> It's not a 5100! They only had a single tape drive.
>
>No, IBM did have MASSIVE 8 inch drives for the 5100 (5108?). My system had
>two of the small file cabinet sized things, but they were scrapped out.
>
>William Donzelli
>william(a)ans.net
>
>
At 02:22 PM 5/12/98 -0500, you wrote:
>
>I think we also acquired an IBM 5100.
>This animal was without docs, but it boots to basic and has
>a small mono screen and twin 8 inch drives. All the logic is
>in one housing with the screen. I know someone was asking
>around about such a computer recently.
It's not a 5100! They only had a single tape drive.
Joe
> Are there any students besides Derek on the list?
Oh, what the heck. I'm a third-year Russian major at Grinnell College.
And, just to keep this minimally on-topic, I have a minor Kaypro
problem. My Kaypro 4 had one of its original floppy drives replaced with
a half-height drive before I got it, leaving a gaping hole in the front.
I wasn't thrilled about this even when the drive worked, but it's stopped
working, so I want to get rid of it. Anybody have a source for
full-height double-sided 5-1/4" floppy drives?
Thanks,
--
Ben Coakley http://www.math.grin.edu/~coakley coakley(a)ac.grin.edu
Station Manager, KDIC 88.5 FM CBEL: Xavier OH
Wow, this is global. -Mtn Goats
Hi.
I picked up a C=128 with a pair of 1571 drives and a 1902 monitor at a
thrift shop the other day. I'm a bit of a Commodore gumby---I only ever
knew one guy who had one, and it was a C=64.
I couldn't find any of the cables when I bought it. I actually did go back
this morning and found a few of them, so I have a few questions.
The 1902 monitor has 5- and 8-pin DIN connectors.
The C=128 has 5- and 8-pin DIN connectors for video, along with a DE9f for
'RGBI'.
The video cable I found has a 5-pin connection labelled 'Computer' and an
8-pin connection labelled 'Monitor'. This sounds pretty straightforward.
So my question is, which jacks are used for what? Will I not be able to
use 80 column mode with this cable? Should I wire a straight-through DIN-8
cable and use that instead of the one I have?
What do I gain by using the RGBI connector? Would one of the Tandy RGB
monitors work with it? The thrift has one, either a CM-3 or CM-5. I forget
which.
Also, I was unable to locate the power supply. I notice it has the same
connection as my A500 supply, except the switch is on the CPU instead of
the PS. Could I use the A500 supply on the C=128 until I can dig up a
C=128 (or even C=64?) supply?
ok
r.
PS; I'm still trying to find info on that TI-99/4A video cable. (:
My wife informed me today that she couldn't join me for lunch so I
decided to take the time and spend it visiting a couple of thrifts
here. Glad I did. I picked up a Commodore C64 (in the shorten C128
style case, sans power supply) just for the heck of it, it was only
$0.80 along with a C2N Cassette drive and 2 Kraft KC3 PC/Apple 2
joysticks. Those are nice ones. But what really caught my eye was a
small box in the back of the top shelf. It was a Radio Shack MC-10
Micro Color Computer, missing the power supply of course. I brought
it back to the office and asked our sysadmin if he could load Office
98 on my new portable for me. He didn't know what to say. :-)
Anyone have anything for the MC-10? Doc, software, etc. The other
big find, to me anyway, was a book for $0.50, INTRODUCTION TO DEC
SYSTEM-10: TIME-SHARING AND BATCH. This book is great! Now I just
need a system to play with. More books and computers, that'll teach
my wife to skip out on lunch. :-)
-----
David Williams - Computer Packrat
dlw(a)trailingedge.com
http://www.trailingedge.com
Re: More Kaypro problems
On Mon, 11 May 1998, Cliff Boyer wrote:
> Hello,
>
> My my name is Cliff Boyer and I too have a Kaypro 10 problem.
>
Sounds a little like a 12-Step meeting....hello, my name is Kirk and I have a Xerox 16/8 problem..:-)
I'm having the same sort of problem with my Xerox, with a Shugart 512 10MB HDD. I can put the drive on another MFM controller and it will initialize and format just fine with no errors, but on the WD controller in the Xerox under CPM it takes hours and hours to initialize and verify...then when I try to make partititons, CPM reports an error, that there is data on the disk, and dumps me back to the initialization routine. Could this possibly be the controller and is there any alternative to spending $75.00 to get another one?
Kirk Scott
scottk5(a)ibm.net
Saw this on the 'current-users' netbsd list and figured some
folks here might be interested. I cannot vouge for this
gentleman, though I know he is one of the Sun-3 port
maintainers for NetBSD and strongly suspect he's a 'nice guy.'
;-)
- - --jmg
- - ------- Start of forwarded message -------
Date: Tue, 12 May 1998 10:29:00 -0400
From: "Gordon W. Ross" <gwr(a)mc.com>
To: current-users(a)NetBSD.ORG
Subject: Free Sun 386i
Delivered-To: current-users(a)NetBSD.ORG
Anyone want a free Sun386i? It's the bigger one (server)
model /25 or something like that. I forget. Color tube.
It works, and has SunOS 4.0.3 as I recall, and DOSmerge.
Way too heavy to ship. You pick it up in Chelmsford, MA.
Pass this along. It goes to the scrap yard in a week.
Apologies for the noise...
Gordon
Re: Loren's Everly's question on May 11th concerning IBM 1500.
About 20 years ago, against my wife's admonitions, I bought an old IBM
1500. I paid a bunch of kids to open core memory modules so that I could
find and mount a core board and a controller card on the wall. I have a
friend, Jack Harper, on the list who asked for a core card, and said he
thought there might be others of you interested in this unique piece of
history. I have pictures of them on my website at:
www.netw.com/~DrFCline/
For those of you interested have a look, and contact me if you wish.
Foster
<Gas discharge has the cathode suspended in the gas, and it is the gas
<around it that glows, not the surface of the cathode. I have never seen
<a blue one, but I imagine argon is more likely than mercury vapour
<(which radiates mostly UV).
Argon and mercury vapor are both UV emitters. Mercury vapor actually
requires a heater to insure there is enough vapor. They have higher
ignition voltages makeing them less suitable for semiconductor drive.
Vacuum florescent was predominent with LEDs before LCDs displaced them.
Vfs had low power, good brightness, suitable for multiplexing (nixies
didn't) and operating voltages suitable for PMOS, CMOS and other
semiconductor drives. The standard blue green VF would filter well to
yellow, green or blue and with other phosphors red and a distinct deep
blue were also done. The actual visible elemets of VF tubes could be a
dot matrix, 7, 9 12, 15, 16 or more segments or even arbitrary shapes
and complete words like "door open" or "overrange" as a single element.
Nixie required far to much power for handheld and even the smallest were
quite tall. There were variations of the nixie theme using bars but all
of the high voltage needs remain and the classic neon orange color.
Of the non crt display technologies I have that are in use and working:
incandesent: Numitron 7segment flatface in my first freqcounter (1974).
VF: alpha numeric with complete words, the loran used in my plane.
VF: alpha dot matrix 40 char by 2 lines display system (C 1980)
NIXIE: Yasu 355D 350mhz frequency counter.
Nixie alpha: Burroughs 32 char selfscan as ascii right entry display.
LED numeric: SR11 calc, various small frequency counters, DVMs and pannel
meters.
LED alpha: A display system using HP6508 15segment leds, 32 chars long.
Allison
Can anyone help me bring an old British Computer back to life.
Last night I bought a early 1980's Grundy Systems Newbrain "AD" computer
>from an advert in the local newspaper.
(See http://www.ndirect.co.uk/~e.tedeschi/picts/newbrain.jpg)
The machine is in good condition, with original manuals, cables, psu,
and even some software.
Unfortunately it wont power up.
Turning on, the LED display flickers and goes blank (although the manual
says it should do this, although I don't get a test pattern which I
think I should) On the Television/video output I just get a white
screen.
Does anybody know if these machines suffered from any common faults?
There doesn't seem to be much information in any of the newsgroups, and
apart from brief descriptions on web based computer museums, there is
very little information available about this strange little computer.
Any help or information, would be much appreciated.
Andy
Many thanks to all who replied about calculator displays. The general
consensus seems to be that it was probably a Sharp EL9, an early and
large hand-held calc (I'm sure it was larger than my hand, but never
mind) from the early 1970s.
To clear up a few misconceptions:
It was not a Nixie tube machine. I have a nixie tube calc and a nixie
tube voltmeter, so I know what those are. Apart from the trademark
issues, I regard Nixie tubes as being ones in which you have an
electrode for each _character_ rather than each segment. Usually
digits, but as Tim pointed out, other symbols were available.
It was not a starburst display. I have seen 14 segment and 16 segment
versions, but these are still based on straight lines, not curves, and
the numerals are still the good old 7-segment ugly ones.
It was also not the display I have in my other digital voltmeter
(Dynamco, I think) which has as digits a multilayer Perspex sandwich.
Each perspex layer has a dot pattern for a character drilled in it; you
light up a character by illuminating the edge of the appropriate perspex
wafer, and total internal reflection confines the light to that wafer,
thus lighting up the dot pattern of only the one character. Neat.
I shall have a look at the website someone mentioned - thanks.
But meanwhile, can someone who has a Sharp please e-mail me with a brief
description of the segments of this 8-or-9-segment display and which
ones light up for which digits.
Many thanks.
(A bit of background:
Talking to my mother about watches, she said she never liked digital
watches because she found 7-segment characters hard to read. I
remembered this Sharp system and decided to try and find out a bit more.
I wonder if it would be possible to revive it for LCDs and things - I
still think it is much more readable than 7 seg.)
Philip.
Anyone had problems lately with the list setting you to POSTPONE?
--------------------------------------------------------------------
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*
--------------------------------------------------------------------
If anyone on the list can help this guy, please email him directly
-------------------------------------------------------------------------------------
David Dal Bianco <centenni(a)npiec.on.ca>
Welland, ONT Canada - Tuesday, May 12, 1998 at 11:30:41
I have an Osborne Portable computer, Model OCC 1. I would like to
get it up and running, but lack information
on it such as operating system, start-up procedure and available
memory. If anyone knows about this model of
computer, please contact me.
--------------------------------------------------------------------
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*
--------------------------------------------------------------------
<Now it is possible that the modems I had available then were different
<from current ones, this was in 1993 and I was working with 1200 or 2400
<baud modems.
No difference. DC on the line was used to sense off hook. It's possible
to ignore the associated line status bit, standard software(dialers,
terminal emulators" would likely look at it and indicate an error. Most
modems use this to indicate a live line and not already in use.
Carrier tone (dial tone) is the next level up to indicating a live line
and dialing is possible.
In any case if these are worked around one modem must be originate and
the other answer so the signal sense is correct.
While it could be handy and made for a real simple two wire interconnect
it's slower than serial direct.
<If you can give me references to documents describing modem and phone lin
<electrical standards I would appreciate it.
Not handy, I'm sure it's on the net.
Allison
< If all else fails you may want to try a low level format on the hard
< drive. Boot with a MS-Dos ver 2.10 or later, run debug. At the '_'
< prompt type in g=c800:5 which should access the controller rom and
< enable you to low level format (it is <crudely> menu driven). Your
< Tandon has 306 cylinders, 4 heads and 17 sectors per track. After the
< low level format procede with the high level partitioning and
< formatting.
<
Marty
That would work if it were a dos box. It's a kaypro CP/M machine with
hard disk via host adaptor.
However, in all likelyhood there are bad sectors on the drive and a
FORMAT of the drive may clear the errors. The problem is that you need
the floppies with the disk utilities to do that and restore the OS back to
the disk (never minding all the other stuff on it). Unlike dos when I say
FORMAT I mean literally a low level format of the media. This unlike the
dos initializing of the media to dos file system. Formattig the media
will erase all the data and files so if you didn't backup, you loose.
How do the bad sectors arise? Heat, age and centrifical force assuming
there were no mechanical or electrical events to munge the media. The
older ST506/412 and similar drives tended to need a low level format from
time to time over their mechanical life.
Allison
"Zane H. Healy" <healyzh(a)ix.netcom.com> wrote:
>If you have access to USENET the Amiga newsgroups are some of the best left
>(man has USENET gone down hill since I first started using it).
(Insert sound of crusty old man voice) "I was on the fricking net before
they even called it the Internet!"
>Just beware the euphoria is running extremally high with everyone waiting for
>the big announcement from Amiga, Inc. at "World of Amiga" in London this
>weekend. The hype is this announcement will change the face of computing,
>PERIOD, and will feature some BIG names.
(Insert sound of Monty Python "Black Knight" sketch, appropriate to
Amigoids who hop around on one leg shouting "It's not dead yet.")
- John
Jefferson Computer Museum <http://www.threedee.com/jcm>
>>> By your later e-mail, you have that image form some website. Good, as it
>>> would be almost impossible to make a reasonable ascii sketch of it. They
>>> glow blue (what gas is that? argon?) and are viewed through a green filter.
>>
>> Is it a gas discharge or a fluorescent anode? The latter are often green/blue
>
> I think gas discharge, as they have the mesh anode that you referred to
> in another message.
Hmmm. I'm not convinced. IIRC, vacuum fluorescent displays have a hot
wire cathode (thin, hard to spot) at the front, a mesh electrode near
the back (anode?) and targets with greyish paint on them at the back.
These targets usually glow blue-greenish when hit by electrons. But it
is the paint that glows.
Gas discharge has the cathode suspended in the gas, and it is the gas
around it that glows, not the surface of the cathode. I have never seen
a blue one, but I imagine argon is more likely than mercury vapour
(which radiates mostly UV).
Philip.
>> It was also not the display I have in my other digital voltmeter
>> (Dynamco, I think) which has as digits a multilayer Perspex sandwich.
>> Each perspex layer has a dot pattern for a character drilled in it; you
>> light up a character by illuminating the edge of the appropriate perspex
>> wafer, and total internal reflection confines the light to that wafer,
>> thus lighting up the dot pattern of only the one character. Neat.
>
> I've seem those used with a 2-colour (black, or illuminated red)
> background for +ve or -ve results. Problem is, I can never remember if
> red is +ve (as an engineer would use) or -ve (as an accountant would
> use)... Actually, didn't Dynamco do that on some of their voltmeters?
IIRC my Dynamco uses red for negative.
Philip.
Alas, I have accepted a job offer that will take my family and me across
the country into a home smaller than one we are currently renting. The
Wife says that the Classic Computer Collection is NOT travelling with us.
To be fair, if it DID move, I would have to store the equipment in a
garage or something equally undesirable.
The following equipment is in need of rescue:
3 TRS80 Model I CPU's
two have keypads, one does not
all are LEVEL II, 16K
two have R/S lowercase mods, one has a non-R/S lc mod
2 Expansion Interface's
both have 32K of RAM
neither have functioning RS232 boards
one has a buffered cable and SD controller
one has non-buffered cable and R/S DD controller
a single R/S RS232 board with a blown line driver chip might
still be with us
4 R/S Shugart or Tandon Diskette Drives
Two are Drive 0 designates with terminating resistors
Two are Drive 1,2,3? without terminating resistors
1 VOXBOX - screws missing but functional at last test
1 TRS80 Voice Synthesizer - barely functioning at last test
1 TRS80 Line Printer 7
Box of Cassette-based tapes
Unfortunately, three TRS80 Model I Monitors got tossed accidentally in a
prior move, so I don't have any of these.
The computers are currently located in central New Jersey. I am hoping
that there is a local collector who would be interested in providing these
guys with a loving home. I am currently located in Baltimore, so I can't
ship them easily. Please reply via EMAIL if you are interested in
retrieving these pieces of computing history.
-Gary Katz
At 01:18 AM 5/11/98 -0700, you wrote:
>
>Its now official...the Second Annual Vintage Computer Festival will be
>held on September 26-27 at the Santa Clara Convention Center in Santa
>Clara, California.
On a similar note, there's going to be a World of Atari show in Las Vegas
in August. Kinda like MacWorld, only for Atari's. (And much, much,
bigger. 8^) Anyway, sounds like a lot of fun; unfortunately I won't be
able to make it. However, the guy from Sacto said that if WoA is
successful, he'll think about doing another Sacramento Atari Expo... So
go, make it a big success...
P.S., Sam, I forgot to mention that I'll be happy to bring over anything in
my collection (except the big Symbolics machines or the HP3000 8^) to put
on display, and I'll be after a table too, I think, to unload some of the
Mac stuff Rachel's not using at school.
Thanks!
--------------------------------------------------------------------- O-
Uncle Roger "There is pleasure pure in being mad
roger(a)sinasohn.com that none but madmen know."
Roger Louis Sinasohn & Associates
San Francisco, California http://www.sinasohn.com/
This card also has some RAM-like chips. IF one were to assume that
those are buffers, could one say that this is just a customized
parallel port card?
>> single female socket,37 pin. It is labelled CD-IFI3, and has an NEC
>> D8255AC-5 chip on it. It is a standard 8-bit ISA. Could someone tell
>
>It's not much help but I can tell you that an 8255 is a pretty dumb 24
>line parallel I/O chip. It has the interesting feature that any write
to
>the mode control register (even if it doesn't change it) sets all
output
>lines to logic 0. That can make life interesting...
>
>
>-tony
>
>
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