< From: Wayne Cox <wcox(a)mis.usaeroteam.com>
^^^^^^^^^^
Wayne, you fly?
< > It's roughly the same thing as a Zenith Z90. I have the manual here (i
<
< If that's the one I'm thinking of, they started out as VT52 terminal
< clones, sold by Heath/Zenith. The on-board personal computer was an
< afterthought, I think. Former employer had a bunch. You may be able to
< tap directly into the terminal portion if you have need for a plain old
< VT52.
yes it started as H19 terminal, the terminal board is separate from the
H8x/Z9x computer board. It makes a good VT52/ansi terminal. I know I
bought one back in the summer of '79 (H19 hit that is). Still have it
and it still works.
Allison
I have a bunch of boards that I would like to move to a good home,
otherwise I will scrap them out. _ANY_ offers over shipping costs will be
considered.
Set of boards for an HP150 system! I am not sure what the processor
is (lots of HP house numbers, but I do see an 8041A and 9914A, neither of
which are the main processors). I have a motherboard with an jack for an
RJ45 keyboard, HPIB connector, and two RS232 ports. I also have a board
with lots of 4164 DRAMs, another with RAMs and ROMs, another mystery
board, and a module that says 3278 interface (HP #45641A).
William Donzelli
william(a)ans.net
< Where on the net, i could find the ST506 specification, or something lik
< RD54 OEM-Manual ?
RD54 is a MAXTOR 2190, so try them.
RD53 is micropolus 1325
rd52 is Quantum D540
RD32 is seagate ST251
rd31 is seagate st225
rd51 is seagate st412
rd50 is sugart/seagate st506
Allison
since i requested today off, i hit the thrift stores since i havent been able
to recently. i found a complete TI professional but left it as i presume it's
just an xt clone. found a //c drive in the box, but at $10, i left it. i did
get:
copy 2+ version 9 complete
quark catalyst with disks
prodos inside and out w/ disk
beagle graphics +disk
something called talk is cheap ver 3.1 w/ disk
beagle bros pronto dos/disk
bb triple dump /disk
a book called the dostalk scrapbook which explains apple dos 3.3
epson printer interface for apple //c
apple //c tech ref.
also got a nice pc tower case for $2 after i exclaimed it was blank and
nothing inside. lol.
there were a few more apple manuals and some beagle brothers software called
timeout-something or other, but i left that. might go back again.
david
I have a customer (Yes, Virginia, I have two customers) who has an Epson
QX-10 running CP/M.
His (external) hard disk is reporting bad sectors; he wishes to switch to an
ST-506/412 Vertex 185, which I think is 20 MB.
I would like to test the Vertex 185 under Spinrite (MS-DOS) and expand the
bad track table, if Spinrite discovers more problems.
I have questions --
Will the bad track information carry over under CP/M, and will its format
utility see the MS-DOS info? Otherwise, should we just make a list and enter
it?
Is there a low-level format utility in CP/M? Is it necessary, as under
MS-DOS?
What is the QX-10 controller card going to think of a different hard drive?
Will it try to run the new drive as a 10 MB?
Thanks,
manney(a)lrbcg.com
What do you use now?
>Like the Kaypro 4/84 (ca 1984) that I use to run my billings on.
In general, I hope everyone that prides themselves of running
Electric Pencil on their Altairs is doing it for practical purposes,
and not because they just want to show off that they won't use
a PC.
>
>I have a PDP-11/73 for development and continuation support use. Also
>very handy for getting from Digital Equipment Corp designed and
>propritary media to other more common use media.
>
A server for what? You must have an Interlnk client if you are using
Intersrvr, unless you hacked the protocol...
>
>I do use an old 386sx/25 as a headless server using MSdos6.22 intersvr
>and interlnk software and a parallel port data cable(LapLink).
I would bet that _most_ hackers do it for commercial/industrial
reasons. FOr everyone who built their own z80, hundreds came off the
assembly line.
>
>All people that modify "hack" machines are not all hobbiests. As a
>professional I need for various reasons to read disks created years
>ago sometimes really old like the 8" media from the late 70s early 80s.
>I have old machines to do this but a handy one is an XT clone using a
>modified floppy controller with and old 8" drive. You cannot buy that
>capability now but, companies have archives that are sometimes very old
>that may need to be accessed.
>
>Even your common P-II box is hard pressed to read older 5.25" format
>floppies! At a minimum you would have to find an apporiate drive and
>then by trial and error figure the jumpers out as new machines a
scantily
>documented at best.
That's an immense exaggeration. P-II boxes a) Have no jumpers, as a
rule b) can support a 5.25" fdd if you can plug one in.
What other difference can there be?
>In computers old technology and new are often only different in speed
or
>size. There are many PDP-8s (1970s tech), PDP-11s (late 70s into the
>80s tech) and Data General Novas still in service as control systems
>where they do the same thing everyday as the have for the last 20+
years.
I agree with that. It's impressive how many people think Windows NT
is a safer option than UNIXoids though NT is only 1/3 as old...
> Mature stable systems we know how to use.
>
>
>Allison
>
>
______________________________________________________
Get Your Private, Free Email at http://www.hotmail.com
What is the official meaning of the symbol #?
>BTW, in the UK # is _never_ called "pound". "Hash" is the most usual
>name, followed by "gate" and "hatch". "Pound" means a script L with a
>couple of horizontal bars through it :-)
>
How is 'recall' done? Where is the number stored? As for the
keypad configurations, I'm sure it all goes back to competing
calculator models.
>That's what I was afraid of. Although a neater hack still would be a
>modified dial that did 11 pulses for * and 12 for #. Mechanically
>possible, but I wouldn't want to try and modify the old dial.
>
>There is a blanked-off hole in most type 746 phones that can
accommodate
>1 or 2 buttons, and I was thinking of putting # and * there, but this
is
>more usually used for a "recall" button.
>
>Incidentally, does anyone know why "timed break" recall buttons are
>replacing local earth ones? And how long is the break?
>
>> While a pulse-to-DTMF converter is a neat hack (and these sort of
>> converters were installed in some step-by-step exchanges in the US,
at
>> least there were in my local exchange when we were step-by-step, but
come
>> to think of it I don't know why, unless they were converting my pulse
>> dialed digits to DTMF so that some other adjunct piece of equipment
such
>> as a Dialed Number Recorder could know what digits I was dialing, for
>> purposes of surveillance ;) it'd be easier to just buy a cheap DTMF
phone.
>
>Sam, you should be ashamed of yourself. The object of the exercise was
>not to get a DTMF phone, but to get one with a _rotary dial_. I
already
>have a DTMF phone, and I am interested in thes project _purely_ for
hack
>value.
>
>Slightly less far off topic, does anyone know the reason for the
>divergence in layout between phone keypads and computer ones, i.e.
>
>123 789
>456 vs. 456 ?
>789 123
> 0 0
>
>Which came first?
>
>Philip.
>
>
______________________________________________________
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Well, folks, here's an opportunity to let it be known that doing a
decent job doesn't always require the latest P-II! This fellow's looking
for quotes from folks who use 'legacy' equipment in production
environments.
Unfortunately, he's not interested in hardware hack type stories. I
kind of dislike his statement of 'if it takes a soldering iron, it's too
complex for this article,' but hey, who knows?
Enjoy. Attachment follows.
-=-=- <snip> -=-=-
On Fri, 24 Jul 1998 16:34:44 +0800, in comp.sys.ibm.pc.misc you wrote:
>>From: Bill Kent <billakent(a)hotmail.com>
>>Newsgroups: comp.sys.ibm.pc.misc
>>Subject: Writer wants to quote users
>>Date: Fri, 24 Jul 1998 16:34:44 +0800
>>Organization: None to speak of
>>Lines: 20
>>Message-ID: <35B84722.2B9BEDA0(a)hotmail.com>
>>Reply-To: billakent(a)hotmail.com
>>NNTP-Posting-Host: spoff76.pacific.net.sg
>>Mime-Version: 1.0
>>Content-Type: text/plain; charset=us-ascii
>>Content-Transfer-Encoding: 7bit
>>X-Mailer: Mozilla 4.04 [en] (Win95; I)
>>Path: blushng.jps.net!news.eli.net!diablo.quiknet.com!csn!nntp-xfer-2.csn.net!pulsar.dimensional.com!dimensional.com!priori!netnews.com!news.maxwell.syr.edu!news.he.net!newsserver.pacific.net.sg!not-for-mail
>>
>>Good Day,
>>
>>My name is Bill Kent and I am working on a story for a major online
>>publication. The focus is on users who use what others might consider
>>"obsolete" technology. I would like to speak to a few users who use
>>oder PCs (386 and below) for productivity apps. I'm talking about in
>>business, education, or home. If you use them as servers or something
>>else, that's super, I'd like to hear about it. I'm not interested in
>>hobbyists who just enjoying hacking the machines. If it requires a
>>soldering iron, it's too complex for this article.
>>
>>I'd like to hear stories about how this technology can be applied to a
>>job and does it well. The general slant of the article is to be
>>positive, but if anyone has any good stories about failures which
>>occurred because you can't do EVERYTHING with older technology.
>>
>>mailto:billakent@hotmail.com
>>
>>Thank you.
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Bruce Lane, Sysop, The Dragon's Cave (Fido 1:343/272)
http://table.jps.net/~kyrrin -- also kyrrin [A-t] Jps {D=o=t} Net
Spam is bad. Spam is theft of service. Spam wastes resources. Don't spam, period.
I am a WASHINGTON STATE resident. Spam charged $500.00 per incident per Chapter 19 RCW.
>> BTW, in the UK # is _never_ called "pound". "Hash" is the most usual
> BT tend to call it 'square'. Confused me the first time I heard it.
I've not met that, although I have, come to think of it, met
"Octothorpe" (I think it was in "Understanding Telephone Electronics").
Ironically, the New Scientist article about digital exchanges (1981?)
that called it "hatch" printed it as a square...
(FWIW, "-thorpe" is often found as a placename element in the Danelaw -
parts of England officially occupied by Vikings before the Norman
conquest - and it means village, equivalent to German "Dorf".)
> Cutting the extra 2 slots in the cam would be quite easy with a dividing
> head (no, I'm not offering to do it, right :-)). The problem is finding
> an arrangement of 12 holes in the dial plate that (a) allows you to dial
> all of them and (b) maintains the required pause between letting go of the
> dial and sending the first pulse (this is part of the spec).
You're in danger of making the same mistake as Sam. Remember the pulses
only go to my counter chip, not to the exchange, so the pause after
letting go of the dial is not essential. That said, it is useful if
your finger is shaking as you dial...
My idea was to have a moveable finger stop like on some smaller dials.
This would normally sit quite close to the 1 position, leaving room for
* and # after the zero, but when you dialled against it it would be
pushed to its conventional rest position.
Philip.
PS I'm off on holiday for a week. I won't (intentionally) set the list
to Postpone, but I probably won't read all the messages...
