Re: OT: Traveling to Zurich in February

[Lawrence Wilkinson via cctalk]

On 17/12/21 4:07 pm, Bill Degnan via cctalk wrote:

I will be in Switzerland/Germany near Davos Feb 5-15 and I was curious what
kinds of museums and sights were worth planning to see during this time of
the year in that area?  Is there an orchestra concert show season there?
Any recommendations for resources for travelers that are not overly
commercial, in English, would be appreciated.

On the inside of an old painting of my great great great grandfather from
around 1830 was a piece of paper with a note written by his granddaughter
many years later about someone called "Count von Burlowe" (spelling?) about
a partnership to found or make commercial a health resort called "Bad
Krautzma", but I believe she was way off spelling-wise.  It's written in
19th century US cursive, hard to read.  So I am interested in learning a
bit about my heritage too.

Thanks
BIll Degnan
Landenberg, PA USA


Things are a bit restricted here, and they've just announced further 
restrictions on museums, restaurants and other public places (you will 
probably need a vaccination certificate: 
https://covidcertificate-form.admin.ch/foreign )


That apart, you can look at https://www.myswitzerland.com/en-ch/ though 
now that's rather oriented towards winter activities.


Concerts: https://www.tonhalle-orchester.ch/en/ 
https://www.opernhaus.ch/en/spielplan/calendar/?filter=3&month=2-2022


Not sure what sort of museums you are after, there are no computer ones 
in Zurich that I know of but some in other places (it's quick to get 
around by train.)


Lots of mountains to visit, either via cable-car or train (Rigi, 
Pilatus, Jungfraujoch, though Santis may be handier for Davos.) If you 
want an idea of travel times you can use https://www.sbb.ch/en/home.html 
which covers trains, ferries and buses (and some cable-cars.)


I can't help with "Bad Krautzma" or variations thereof. I would guess 
"von Burlowe" is "von Bülow".


I'm in central Zurich, so more than happy to rendezvous sometime.

LJW


--

Lawrence Wilkinson lawre...@ljw.me.uk
Ph +41(0)79 926 1036 http://www.ljw.me.uk

[cctalk] Re: Late '70s DEC manual covers [niche!]

[Lawrence Wilkinson via cctalk]

On 11/02/23 09:22, ED SHARPE via cctalk wrote:

Why does it show me Samsung health screen when I download?
Sent from the all new AOL app for Android
On Sat, Feb 11, 2023 at 12:58 AM, Paul Flo Williams via 
cctalk wrote:Folks,
During lockdown I was having some fun redrawing old DEC manual coverswith 
Inkscape, specifically terminal and printer manuals from the late1970s. I've 
attached a montage of four that I printed out so I couldstick it on the wall. 
I'm aware I may be the only person, even here,who finds them attractively 
simple and coloured in such a definably1970s way.
Some of these designs were used on several manuals, but I'd like toknow if you 
know of any other designs that follow this pattern that Icould add to the 
collection? The VT102 User Guide has differentcolours, so it looks out of 
place. A copy of the LA34 User Guide iswinging its way to me as we speak.
For an infinite number of bonus points, does anyone have any clue whomight have 
designed these?
Paul



Ed,

Sorry, when this went through the attachment(s) would have been removed 
by the list. I expect any other link has been inserted by your mail 
client, happy days.


Paul,

Can you upload your images somewhere and just post links? Thanks.

Lawrence

--

Lawrence Wilkinson lawre...@ljw.me.uk
Ph +41(0)79 926 1036 http://www.ljw.me.uk

Re: Commercial AIM-65 Video Controller?

[Lawrence Wilkinson via cctalk]

On 19/05/17 07:08, Kyle Owen via cctech wrote:

Any idea what this thing is?

https://imgur.com/a/aNFiK


At a guess I would say it's for (sub-)titling. The text would have to go 
in via serial, with the colour set similarly or via the rotaries.


The video generator would be simple but would have to be locked to the 
input sync, so that might be what the pots are for.


 would be red,  green,  would be brightness/luminance/green, 
and  transparency, perhaps. There might also be setting for 
position, but I can't make them all out.


Maybe it would give some sort of startup output at power on (model, 
version) even without serial input?


--
Lawrence Wilkinson  lawrence at ljw.me.uk
The IBM 360/30 page   http://www.ljw.me.uk/ibm360

Re: Details about IBM's early 'scientific' computers

[Lawrence Wilkinson via cctalk]

On 14/11/17 18:20, Chuck Guzis via cctech wrote:

It's always struck me how revolutionary (for IBM) the change in
architecture from the 700x to the S/360 was.  The 709x will probably
strike the average reader of today as being arcane, what with
sign-magnitude representation, subtractive index registers and so on.
The 7080, probably even more so.  But then, most of IBM's hardware
before S/360 had its quirky side; the only exception I can think of,
offhand, would be the 1130, which was introduced at about the same time
as the S/360.

I think the 360 marked the change from hardware-driven development to
software-driven. The 'arcane' architectures would have maximised
performance for a given amount of hardware, and programmers were
relatively cheap. But the 360 reversed that, hardware was now cheap
and didn't need to work at 100% efficiency, but software development
was expensive so writing and re-writing needed to be minimised.

The S/360 was a breath of fresh air for IBM.

Which is why it's still around today, even if the name has changed.


--Chuck

Sent from my digital computer


--
Lawrence Wilkinson  lawrence at ljw.me.uk
The IBM 360/30 pagehttp://www.ljw.me.uk/ibm360

[cctalk] Re: Pragmatically [was: Experience using an Altair 8800 ("Personal computer" from 70s)]

[Lawrence Wilkinson via cctalk]

On 1/06/24 14:20, Liam Proven via cctalk wrote:

https://www.ljw.me.uk/ibm360/Saga.html

That one? Lawrence is on this list and posts occasionally. He's real:
I've met him. He was kind enough to give me some boxed copies of OS/2.
:-)


Yes, I can confirm that I am real.

Incidentally, I found some of the documents from the time, including 
templates I made to sort out the room layout.


The templates have a basic version, and one that includes the doors and 
logic 'gates' which swing out for servicing.


2030 is the CPU with the 1051/1052 typewriter, 2841 is the Storage 
Control (Disk Controller, if you like.)


The small things are the three 2311 disk drives and the disk pack rack.

Room layout: https://flic.kr/p/2pDGdZc

Templates: https://flic.kr/p/2pDFyZi

--
Lawrence Wilkinson  lawrence at ljw.me.uk
The IBM 360/30 pagehttp://www.ljw.me.uk/ibm360

[cctalk] Re: Antonio's call for donations (was LCM auction)

[Lawrence Wilkinson via cctalk]

On 5/09/24 02:39, ste...@malikoff.com steven--- via cctalk wrote:

cctalk is allowing attachments now?  I was under the impression that these were 
deliberately disallowed and filtered for bloat reduction or safeguard against 
possible malware distribution?
I'd personally prefer no attachments on cctalk rather just post a link to 
somewhere they can be retrieved from if desired.

Steve


Posts with attachments get held for moderation. Attachments usually get 
stripped, but I am not quite sure what the criteria are for that.


I allowed that one but didn't expect the attachments to appear, just for 
the poster to work out what to do next. This is probably the first time 
someone has posted attachments smaller than 100k.


So don't expect general attachments, especially images etc.

--

Lawrence Wilkinson lawre...@ljw.me.uk
Ph +41(0)79 926 1036 http://www.ljw.me.uk

Re: cctalk/cctech

[Lawrence Wilkinson via cctalk]

On 21/11/2018 16:19, Bill Degnan via cctalk wrote:

On Wed, Nov 21, 2018 at 9:34 AM Pontus Pihlgren via cctalk <
cctalk@classiccmp.org> wrote:


On Wed, Nov 21, 2018 at 06:18:25AM -0800, Al Kossow via cctalk wrote:

On 11/21/18 6:06 AM, Noel Chiappa via cctalk wrote:

I thought cctalk was supposed to be a complete superset of cctech, but
looking at the cctech archives, I see a lot of posts that didn't make it
to cctalk. Does one need to do both to see everything?

 Noel


Yes, unfortunately.
Most of the "removing PVA" thread never made it to cctlk

I think it's time for cctech to die.



I agree!



Not die so much as one become an alias of the other.  I actually use them
both, depending on the nature of my question.  Someone should run a set of
tests.
b

The original complaints were due to me being on holiday, and some 
existing hitch with the list configuration which means some posts need 
to be moderated through to cctalk (though it should have caught up now.)


But yes, the two lists are largely identical, though of course non-cc 
stuff doesn't make it into cctech. Almost anything goes on cctalk as 
most posts go through automatically anyway.


I think if everyone can refrain from posting non-cc stuff (and in this I 
would include: Queries about modern HW or SW without a direct CC 
relevance, long threads about character encoding schemes...) then we 
could go to a single list, but one might have to get used to being 
jumped on if posting something regarded as off-topic, and perhaps 
finding oneself moderated if persisting.


Lawrence

--
Lawrence Wilkinson lawre...@ljw.me.uk
Ph +41(0)79 926 1036 http://www.ljw.me.uk

Fwd: Latest Batch of Items from Sellam's VWoCW

[Lawrence Wilkinson via cctalk]

Sorry, moderation fail. Forwarding to cctalk:


 Forwarded Message 
Subject:Latest Batch of Items from Sellam's VWoCW
Date:   Fri, 15 Feb 2019 20:27:12 -0800
From:   Sellam Ismail via cctech 
Reply-To: 	Sellam Ismail , General Discussion: 
On-Topic Posts 
To: 	General Discussion: On-Topic and Off-Topic Posts 





Hello Folks!

I've put together another batch of items as I continue to wade through my
warehouse and winnow out the wonders:

HP 2116C System Manual #1
HP 2116C System Manual #2
HP 2116C System Manual #3
HP 2116C Power Cord
Using the HP 3000: An Introduction to Interactive Programming
Tandy WP-2 Portable Word Processor
M7859 KY11-LB Console Interface
Kraft 3-button PC Mouse
Mouse Systems 3-button PC Mouse
Zenith Z-Box External ISA Expansion Chassis
Novell IBM NIC ShareNet Board
Epson External 5.25" Floppy Drive
SuperMac Technology DataFrame DF20 20MB external hard disk
ClubMac C104 External SCSI CD-ROM Drive
Midiman Mini MacMan Macintosh MIDI Interface
Passport MIDI Interface for Macintosh
Neutronics Hexadigit S-100 Bus Monitor
Gimix Ghost 32K RAM
Compaq SLT/286 portable
VTech The Equalizer Laptop
IBM Model M Keyboard
IBM Model M Keyboard
IBM Model M Keyboard
IBM Model M Keyboard

The main index for these and other fine items is here:

https://docs.google.com/spreadsheets/d/1I53wxarLHlNmlPVf_HJ5oMKuab4zrApI_hiX0pNmy48/edit?pli=1#gid=949372371&range=A1

I've put some work into the index and improved it so that links keep
properly updated as new items are added or sold items are removed (whereas
before the index links in the New Arrivals Niche would get hopelessly out
of sync). However, I believe there might have been some problems with the
links before so if you saw an item you liked and the link did not lead to
it and you assumed it was sold, please check again. From this point going
forward, all links (above the notice in the sheet) should stay in sync.

I've been preoccupied for the last few months with personal business and
haven't been able to put a lot of time into curating the collection for
sales but I am trying to catch up. There are a couple people that are
waiting on me and I haven't forgotten about you. I will get caught up
shortly and I thank you for your patience.

As always, please contact me directly by e-mail via 


to make an order or an offer.

Thanks!

Sellam

Re: IBM 360 Model 50 information?

[Lawrence Wilkinson via cctalk]

On 28/03/2019 17:46, Ken Shirriff via cctech wrote:
> I'm writing a S/360 Model 50 emulator that runs at the microcode level, in
> order to drive a Model 50 front panel accurately. I'm about 80% of the way
> there, but there are some microcode operations that I haven't figured out.
> So I figured I'd ask if anyone has obscure Model 50 manuals that aren't on
> bitsavers, or perhaps even the ALDs.
>
> I was surprised at how extremely different the microcode is from the 360
> instruction set. I've figured out a bunch of the strange
> micro-instructions, such as S47ΩE, which ORs the emit field into flags 4
> through 7. But there are many micro-instructions that still puzzle me,
> like F→FPSL4 which maybe a floating point shift left 4 and 1→BS*MB which
> does something with byte stats. So if anyone happens to have a Model 50
> microcode programming manual sitting around, please let me know :-)
>
> Thanks,
> Ken

Welcome to the club!

Do you only have the manuals from Bitsavers? So CLDs but no ALDs.

Yes, something that does a FP shift-left-4 will be related to the IBM FP
format normalisation and it should be possible to work out exactly what
from the context. It may do other odd things and not just what the
operation mnemonic shows, e.g shift left 4 + increment exponent + set
flag on overflow, or perhaps the opposite to de-normalise for
addition/subtraction (see CPL 115.)

You could also look through the diagnostic sections to see if the
operation is used in there - this may well give exercise special cases
of the operation and confirm exactly how it is meant to work. I had a
problem with the 2030 ALDs and CLDs not being the same version (I think
the microcode/CLD was newer) and this meant it would not work with the
circuitry I had. I can't remember the differences, I think an extra
diagnostic latch or two, but once the diagnostics passed I was confident
they were correct.

Is there anything new at http://www.ibm360.info/ for you?

-- 
Lawrence Wilkinson  lawrence at ljw.me.uk
The IBM 360/30 page   http://www.ljw.me.uk/ibm360

Re: Pleas ID this IBM system....

[Lawrence Wilkinson via cctalk]

It all looks quite complete. Note sure about the 3xxx/5xxx stuff, maybe 
it's lurking there somewhere. The listing does say there are 6 units 1m 
x 1m, it's a bit confusing.


The Model 20 didn't need a DASD controller and could connect two 2311s 
directly. Not sure if the resulting disks were compatible with 
2841-based 2311s though.


It doesn't say whether it's possible to view the stuff, but I could make 
a trip. Maybe our office would like something to go with the z/Series 
beer fridge.


On 06/04/2019 19:09, Al Kossow via cctech wrote:

Hopefully LCM can go after this to flesh out their peripherals
It looks like a nice set of disks and tapes, hopefully the 360-era
disk and tape channel controllers are there too

On 4/6/19 7:04 AM, jos via cctalk wrote:


https://www.ebay.de/itm/seltene-Anlage-Puma-Computer-IBM-2020/202646831828?hash=item2f2eb142d4:g:izoAAOSwhV1cpw


--
Lawrence Wilkinson lawre...@ljw.me.uk
The IBM 360/30 page   http://www.ljw.me.uk/ibm360

Re: Pleas ID this IBM system....

[Lawrence Wilkinson via cctalk]

On 16/04/2019 22:22, William Donzelli via cctalk wrote:
> Clearly the pile was not purchased for scrap, so it will be
> interesting to see where it ends up. We may never know, with the
> secretive nature of big iron collectors..

I know one of the group that bought it, but I am not sure if they are on
the list.

I believe the intention is to attempt to restore the /20 + peripherals.
Not sure about plans for the 370. It is a huge task, but they are keen.

So rest assured it won't be scrapped, and it won't disappear into a
collection.

Please don't ask me who it is. They are welcome to announce themselves
if they wish.

And it's not classic, but here's an IBM z/Series converted into a beer
fridge:
https://www.flickr.com/gp/ljw/NrV130
https://www.flickr.com/gp/ljw/35y797

-- 
Lawrence Wilkinson lawre...@ljw.me.uk
Ph +41(0)79 926 1036 http://www.ljw.me.uk

Re: Pleas ID this IBM system....

[Lawrence Wilkinson via cctalk]

On 20/05/2019 18:42, Chuck Guzis via cctalk wrote:

The model 20 installations that I played with were mostly to supplant
unit-record gear, which typically did not use a raised floor
configuration.  Mostly the CPU, card mulcher, printer and perhaps a 2311.

The installation auctioned off is one of the larger Model 20 setups that
I've seen.

--Chuck


As Adam isn't on the list, and I am one of those in that photograph...

There was one 360/20 (pink) that was cabled up with 2 x 2311 disk, 2 x 
2415 tape, 2560 MFCM and (I think) the 1403 printer. That system appears 
to have been in use at that site. The second 360/20 (blue) was not 
cabled to anything, and the 370/125 (yellow) likewise. So I expect 
neither of those was used at all.


It can't have been a serious commercial installation, but maybe it was a 
keen hobbyist who acquired the systems and decided to keep them running, 
or perhaps used as a training tool. It apparently hasn't been used for 
30+ years.


The "raised floor" was in a sorry state, the heavy units had sunk into 
the soft wood panels. I guess the framing might have been useful.


It was good that all the punch cards required seem to be there and in 
good condition: the Control Program (microcode) cards for the /20, RPG, 
BAL etc. These need to be read - I know there are services that will 
process scans, but is there anywhere (UK/Europe) that can take the 
physical cards and give us back files?


The guys did a wonderful job, especially on that last day when they 
managed to move most of the units and clear everything out. As 
mentioned, the /20 CPUs and 2415 master unit were 500-600kg each and 
about the limit of the tail-lift.


If anything I've written here is contradicted by anything in the blog, 
believe the blog! https://ibms360.co.uk


--
Lawrence Wilkinson lawre...@ljw.me.uk
The IBM 360/30 page   http://www.ljw.me.uk/ibm360

Re: Post?

[Lawrence Wilkinson via cctalk]

On 29/05/19 7:07 PM, MEBA via cctalk wrote:
> Did my post for the HP printer get posted? I haven't seen it.
>
>  
>
> Mark

Some mail systems will not send you an email that appears to be from
yourself (I think gmail is one of these) so it can appear that your post
has not appeared.

You can also check the archive (e.g.
http://www.classiccmp.org/pipermail/cctalk/2019-May/date.html ) to find
an email - if it's in there then it was posted.


-- 
Lawrence Wilkinson  lawrence at ljw.me.uk
The IBM 360/30 page   http://www.ljw.me.uk/ibm360

Re:

[Lawrence Wilkinson via cctalk]

On 16/06/19 8:58 AM, Steve Malikoff via cctalk wrote:
> Looks like the recent recovery in Germany had a precedent. These two happy 
> guys have lugged their 360 out of the
> building BUT look at the extra they snagged with theirs, and in great 
> condition too!
> https://www.ebay.com.au/itm/1965-TORINO-Prototipo-auto-GIULIA-SPORT-Speciale-monitorato-da-IBM-System-360/283387708589
>
> ;)

I don't think it's mentioned in their blog, but there was also a
disassembled Porsche 911 but that is being auctioned separately. They
did give back the 911 crankshaft that somehow got mixed up with the
mainframe bits.

Nothing to report other than what's at https://ibms360.co.uk


-- 
Lawrence Wilkinson  lawrence at ljw.me.uk
The IBM 360/30 page   http://www.ljw.me.uk/ibm360

Re: Scanning question

[Lawrence Wilkinson via cctalk]

On 19/07/19 7:36 AM, Chuck Guzis via cctalk wrote:
> On 7/18/19 10:01 PM, Guy Dunphy via cctalk wrote:
>
>> I have a lot more to say about the wisdom of destroying original publications
>> to scan them, especially when you are not already an expert at scanning and
>> the many tradeoffs.
>> But have to go afk just now.
> It would seem to be possible today.  Perhaps with a laser scanner that
> also determines the focal plane of the area of the text it's trying to scan?
>
> I'm sure there must be something like this.
>
> --Chuck

Have a look at
https://www.indiegogo.com/projects/aura-speeds-simplifies-all-your-scanning-needs#/

Carl Claunch pointed me at this, he has one and I am sure he can comment
further. I have ordered one.


-- 

Lawrence Wilkinson  lawrence at ljw.me.uk
The IBM 360/30 page   http://www.ljw.me.uk/ibm360

Re: Full immersion emulation

[Lawrence Wilkinson via cctalk]

On 01/03/17 21:13, jim stephens via cctalk wrote:

On 3/1/2017 11:14 AM, Charles Anthony via cctalk wrote:
So I am fishing for any existing audio clips with clean sounds, or 
someone
with a Selectric that is willing to make some recordings, or a 
pointer to

somewhere where all of this has been done already.

-- Charles
Golfball typewriter group on yahoo for a lot of people who have 
Selectrics.


https://groups.yahoo.com/neo/groups/golfballtypewritershop/info

I suspect this is someone on the group on Youtube with an I/O Selectric

https://youtu.be/CRdma6NINIw

Yes, that's me! More I/O Selectric sounds available on request - it's 
sitting

in my employer's office connected to the 360/30 panel+emulator. But it
tends to sound much the same whatever it's printing.

--
Lawrence Wilkinson  lawrence at ljw.me.uk
The IBM 360/30 page   http://www.ljw.me.uk/ibm360

Re: VCF Europe

[Lawrence Wilkinson via cctalk]

Dave and anyone else thinking of going,

Last year I stayed at the Central Hotel-Apart, Josephsburgstraße 26, 
81673 München (http://www.centralhotelapart.de but doesn't seem to work 
right now.) It's 500m or so from the venue. The Hotel Eisenreich 
mentioned on the website is no longer there.


I'm not sure if I'm going - I probably need to get a move on organising 
how to get the stuff there. It looks like it's 3 days this year, and May 
1 is a holiday here too, but museums etc. were closed on that day so if 
I go I'll try to do a bit of looking around on the Sunday.


Lawrence


On 16/03/17 20:22, David Wade via cctalk wrote:

Folks,
   Rod has spurred me on to pay a visit to VCF Europe. I wonder if any one else 
on the list is going. If so any thoughts on Hotels? I will probably only manage 
the Saturday!
Dave
  



--
Lawrence Wilkinson  lawrence at ljw.me.uk
The IBM 360/30 page   http://www.ljw.me.uk/ibm360

Re: IBM MST extender cards

[Lawrence Wilkinson via cctalk]

On 10/10/19 7:49 PM, Al Kossow via cctalk wrote:
> https://www.ebay.com/itm/352810055470
>
> are these extender cards for IBM MST modules?
>
They look like it, with a right-angle adapter plugged into the end.


-- 
Lawrence Wilkinson lawre...@ljw.me.uk
Ph +41(0)79 926 1036 http://www.ljw.me.uk

Re: Duplicate messages

[Lawrence Wilkinson via cctalk]

I think you might be subscribed to both cctalk and cctech. So you get
the cctalk message immediately, and the cctech one when it's moderated.

At the moment the lists are largely the same since everyone is good at
not posting off-topic stuff.


On 11/06/20 11:01 am, Johan Helsingius via cctech wrote:
> Hi!
>
> Anyone else getting duplicate messages from this list? I get 2 copies of
> most (but not all) messages, with the second copy often arriving
> significantly later.
>   
>   Julf
>
-- 
Lawrence Wilkinson lawre...@ljw.me.uk
Ph +41(0)79 926 1036 http://www.ljw.me.uk

Re: New subscribers?

[Lawrence Wilkinson via cctalk]

On 21/06/20 6:49 am, Tom Hunter via cctalk wrote:
> Are new subscribers to cctalk still accepted?
Yes.
> My subscription request was left unanswered.
There is no outstanding subscription request for your email, and I don't
remember seeing it. Given the email name I would likely have approved it
immediately.
> With all the talk about the future of this list I wonder if I came too late.
I don't think the list is going anywhere in the immediate future.
>
> Thanks
> Tom Hunter
Lawrence (moderator!)

-- 
Lawrence Wilkinson lawre...@ljw.me.uk
Ph +41(0)79 926 1036 http://www.ljw.me.uk

Re: Spam

[Lawrence Wilkinson via cctalk]

As a moderator, I am quite sure that no spam actually came through the
list. On a few occasions the spam has come from a list member's address
and gets passed straight through, but that's quite rare.

However the number of spam posts to the list exceeds real posts by a
factor of about 10. So it's quite possible that I will click the wrong
button and you will all get a spam message. For some reason almost all
the current spam is in German.

(And if you can, please don't post messages with spammy subjects like
"Look at this!" if you want it to go through.)

Bill Degnan (or an imposter) did post a couple of empty messages
recently, no great harm done there.

Lawrence


On 1/09/20 12:55 am, Peter Coghlan via cctalk wrote:
> Anybody else on cctech/cctalk receive a blatant spam today from an outfit
> called "SparkPost" with "OptIn Live" in the subject?
>
> Regards,
> Peter Coghlan.

-- 
Lawrence Wilkinson  lawrence at ljw.me.uk
The IBM 360/30 page   http://www.ljw.me.uk/ibm360

HP Series 9000 early 1980’s computer hardware

[Lawrence Wilkinson via cctalk]

The following was sent to the list as an attachment so I am forwarding 
it. Please don't reply to me but rather to Mr Parker. I have removed his 
full address and phone number.


To:  classiccmp.org
Re: HP Series 9000 early 1980’s computer hardware

Hi,

I own several HP 9020 work stations along with peripheral gear 
associated with that series. That gear includes several types of hard 
drives and tape drives, standalone monitors and even an impact 132 
character line printer. I also have a CPU, that I think is a 9000/550. 
Not a work station but a more powerful CPU using the same technology as 
the 9000/520. Plus cables and extra circuit boards used in that series 
equipment. All of the stuff worked the last time it was fired up. I also 
have the disks and tapes for the software shipped with that equipment.


I am getting along in years and rather leaving it to be trashed in the 
future I am looking for a new home for the stuff. So can you suggest 
someone who might be interested in it?


Sincerely,

Charles D. Parker

Howell, MI 48844
chas.par...@comcast.net

--
Lawrence Wilkinson  lawrence at ljw.me.uk
The IBM 360/30 page   http://www.ljw.me.uk/ibm360

Re: 6809 Monitor

[Lawrence Wilkinson via cctalk]

On 02/10/18 21:24, tim lindner via cctalk wrote:

Does anyone have source to a 6809 monitor program?

I'm looking for something I can make work in a CoCo.

Functionality I'm looking for is something that will let me read and
write to memory.

There is a listing of ASSIST09 in this Motorola book: 
http://geneslinuxbox.net:6309/gene/Genes-os9-stf/MC6809-MC6809E%208-Bit%20Microprocessor%20Programming%20Manual%20(Motorola%20Inc.)%201981.pdf


This might be overkill, as it has single-step, breakpoints etc.

If you type it in, note that the listing omits the second and subsequent 
hex bytes for constants (FCB) !


LJW

--
Lawrence Wilkinson lawre...@ljw.me.uk
Ph +41(0)79 926 1036 http://www.ljw.me.uk

Digitizing video frame for printing

[Lawrence Wilkinson via cctalk]

Sorry I accidentally deleted this message from Dag Spicer, so here it is
for cctalk. Reply to him or the list, not me!

Lawrence


 Forwarded Message 
Subject:Digitizing video frame for printing
Date:   Mon, 28 Sep 2020 06:00:21 +
From:   Dag Spicer via cctech 
Reply-To:   Dag Spicer , General Discussion:
On-Topic Posts 
To: cctalk@classiccmp.org 



Hi there,
Trying to help a former operator of a digital portrait scanning booth
‘back in the day…’ He writes:


IN 1976, I worked at "get your portrait by computer" store.

The heart of the system was a 16 bit, Data General, Nova II computer.

A black and white, analog, standard definition CCTV camera was tethered
to a "digitizer" box that was connected to the computer.

The photographer hit the ‘Capture’ button on the "Digitizer" box to
instantaneously freeze the image and "digitize" it.

The image was then sent to a Centronics, 102AL, 7 pin, dot matrix
printer to print. A perceived grey scale of 26 shades was created by
numbers and letters.

What I am trying to find out is what the "Digitizer" box was and how it
worked. Ram? Tape loop? I DO know that it said 'Digital Image Systems'
on the outside but have not been able to learn more.

Can anyone help with more information about DIS or generically about
these systems? They were popular in shopping malls for a few years in
the mid-70s…

Thanks for any tips!

Dag
——
Dag Spicer
Senior Curator
Computer History Museum

1401 N. Shoreline Blvd.
Mountain View, CA 94043
dspi...@computerhistory.org

Re: Zuse Z4 - Oldest Surviving Computer in the World - Lost in the archives

[Lawrence Wilkinson via cctalk]

On 2/10/20 10:20 am, Brent Hilpert via cctech wrote:
> I'm not sure how unique this is to Zuse however.
> The raw design presented in the Radio-Electronics/Edmund Berkeley Simon 
> articles of 1949/50 presents this scheme,
> although more complex (unoptimised) in the contact logic.
> This is post-Zuse of course, but it's a question and investigation as to how 
> the design may have gotten from Zuse to the US/Berkeley in those years.
> That is, I wonder if it's a design that was arrived at independently in 
> multiple places, or did it all derive from Zuse.

Charles Babbage designed a carry generate/propagate mechanism
("anticipating carriage") for the Analytical Engine which works in much
the same manner, though of course mechanically and in Base 10.

If the wheel rotated past 9 it set a lever which (later) triggered carry
on the next higher wheel. If the wheel was sitting at 9, an interposer
meant that any carry in would be transferred to the next higher wheel
(as well as rotating the wheel to 0.)

This is in contrast to the ripple carry mechanism on the Difference
Engine, which he knew restricted the speed.

I don't know when his designs were publicised but I doubt they had any
influence on Zuse and others of that era.

> When I was figuring-out/recreating the design of 'Simon' some years ago, I 
> optimised the RE/Simon adder design down considerably.
> That's written up here, in the ALU/adder section:
>   http://madrona.ca/e/simon/imp.html
> The schematic there presents the idea.
> Some years later I ran across the Zuse design and found I was one 
> optimisation short of Zuse
> (IIRC, one more contact could be optimised out and it would match the Zuse 
> design).
> I've been long meaning to add the Zuse circuit into that page to present the 
> further optimisation.
Please do! Perhaps you could phrase a description in terms of generate
(A.B) and propagate (A+B)

-- 
Lawrence Wilkinson  lawrence at ljw.me.uk
The IBM 360/30 page   http://www.ljw.me.uk/ibm360

Re: Need to have a roll of paper punch tape read by a tape reader and printed

[Lawrence Wilkinson via cctalk]

Sorry Vince & Gary, it was my fault that the original cctalk posting was 
deleted amongst the spam. It did get to cctech which is where Camiel saw it.


But before I could ask Gary to re-post, Camiel had replied so I figured 
that everyone would get to see that.


Lawrence


On 9/03/21 9:41 am, Vincent Slyngstad via cctech wrote:
I am a cctalk subscriber, but I don't seem to be getting messages 
reliably any more.  So, I'm replying to the reply, as I never got the 
original query.


Anyway Gary, I'm in Beaverton OR, USA and so quite possibly local, and 
I can read your paper tape easily enough.  Email or a thumb drive or 
whatever so you can print out the result.


I don't think my Teletype is in good enough shape at the moment to 
make you a period correct print-out, though.


Vince

On 3/9/2021 12:03 AM, Camiel Vanderhoeven via cctech wrote:

Gary,

I don't know if you're in Europe or elsewhere. I'm in the 
Netherlands, and I could do that free of charge. I'd also make a 
video recording of the process for your sons education.


Camiel

From: cctech  on behalf of Gary Dye 
via cctech 

Sent: Monday, March 8, 2021 11:30 PM
To: cctalk@classiccmp.org 
Subject: Need to have a roll of paper punch tape read by a tape 
reader and printed


Hi folks.  I wrote a basketball program in Basic over 40 years ago in 
high school.  I printed the 13 pages of code, and produced a roll of 
paper punch tape of the code, but the 13 pages were destroyed, 
leaving me with only the paper tape.  My 14-year-old son was pretty 
fascinated to see the roll of computer punch tape -- paper with holes 
in it! -- that we used to store files in the old days. And that we 
didn't have computer screens, but only a teletype element that 
printed -- one letter at a time -- the back-and-forth information 
between the timeshare computer and the teletype (output). This paper 
punch tape is the Basic program that I wrote in high school that 
played a random basketball game (as called by Bill Schonely, radio 
voice of the Portland Trailblazers). I'm trying to find someone to 
run it through a tape reader so that I can retrieve the code and play 
the game again.  I'm hoping to explain the code to Owen so that he 
might understand the power of coding and get interested in coding.


Is there anyone out there that I can send my roll of paper tape to 
such that the code can be restored?  I could pay some compensation 
for your troubles.


Much appreciated,

Gary

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--
Lawrence Wilkinson  lawrence at ljw.me.uk
The IBM 360/30 page   http://www.ljw.me.uk/ibm360

Re: head alignment tape

[Lawrence Wilkinson via cctalk]

On 30/03/21 1:02 pm, Jos Dreesen via cctech wrote:

Does this head alignment tape need saving ?


https://www.tutti.ch/de/vi/zuerich/computer-zubehoer/komponenten-zubehoer/5-stk-vintage-computer-tapes-memorex-pericomp-etc/43582741 




I'd be inclined to think that the alignment tape would suffer to same 
issues as all old tapes, but then this is rare enough to be mentioned 
here.



Jos



Unless someone else in this region needs them, I am sure our company can 
get them to add to the collection.


Lawrence

--
Lawrence Wilkinson lawre...@ljw.me.uk
Ph +41(0)79 926 1036 http://www.ljw.me.uk

Re: Bounces

[Lawrence Wilkinson via cctalk]

On 1/05/21 4:00 pm, Adrian Graham via cctalk wrote:

Hi folks,

Did anyone else get an email about excessive bounces today? I’ve not changed 
anything hosting wise forever so this is a bit weird.

Cheers,


There was a bounce from gmail - something about some of the messages it 
didn't like. If you got this one then it's not a general dislike of 
cctalk or classiccmp.org which is the problem.


All I can suggest is that those of you with gmail addresses have a quick 
look at http://www.classiccmp.org/pipermail/cctalk/2021-May/date.html to 
see what you have missed - it seemed to be the DEC RF08/RS08 message 
from Mattis that upset gmail.


LJW

--
Lawrence Wilkinson  lawrence at ljw.me.uk
The IBM 360/30 page   http://www.ljw.me.uk/ibm360

Re: how to make use of daisy wheel printer

[Lawrence Wilkinson via cctalk]

On 29/05/21 2:40 am, Fred Cisin via cctech wrote:

Wordstar had some "drivers" for proportional spacing.
I kinda doubt that there are practical Windoze drivers.


Yes. I seem to recall that Wordstar had fairly sophisticated support for 
printers, though you would probably still have to configure the basic 
Escape sequences unless you're lucky enough to find the set for your 
printer.


https://www.wordstar.org/index.php/wsdos-support/wsdos-printing/126-wordstar-for-dos-version-4-supported-printers

Note - double-strike bold doesn't work so well with a film ribbon.



--
Grumpy Ol' Fred ci...@xenosoft.com



--
Lawrence Wilkinson  lawrence at ljw.me.uk
The IBM 360/30 page   http://www.ljw.me.uk/ibm360

[cctalk] Re: Emails with photos attached to this list

[Lawrence Wilkinson via cctalk]

On 13/10/24 10:02, hupfadekroua via cctalk wrote:

Will emails with embedded/attached photos send to this list published or 
dropped?

Andreas
Andreas, sorry for the delay - your messages were sitting in the 
moderation queue along with a zillion spams. I am glad you found a 
solution.


--
Lawrence Wilkinson  lawrence at ljw.me.uk
The IBM 360/30 page   http://www.ljw.me.uk/ibm360