Re: 3270 controller simulation

[SPC via cctalk]

El dom., 17 nov. 2019 2:23, Al Kossow via cctalk 
escribió:

>
> https://deskthority.net/viewtopic.php?f=55=21558=442092#p442092
>
> if you look at the pictures from april, they have an arduino talking to a
> 3278
>
> any ideas who 'ajk' in austin might be?
>

Very impressive.

Cordiales saludos / Best Regards / Salutations / Freundliche Grüße
-
Sergio Pedraja

>

Re: getting your data from yahoo

[SPC via cctalk]

El vie., 1 nov. 2019 a las 9:46, Dave Wade via cctalk (<
cctalk@classiccmp.org>) escribió:

> Al,
>  I think that’s for GDPR and returns only the data you have posted.
> Dave
>
> At least by now, I have saved the entire contents (with the exception of
"databases" but I guess is a matter of permissions in the rare cases I've
found one DB associated to one group in Yahoo). I am using the Personal
Groupware Tool that I linked some posts before.

Regards
Sergio

Re: getting your data from yahoo

[SPC via cctalk]

El jue., 31 oct. 2019 a las 17:52, Dennis Boone via cctalk (<
cctalk@classiccmp.org>) escribió:

>  > someone just posted this on twitter they seem to have sent an email
>  > to everyone and didn't bother to mention this
>
> This tool has worked well for me:
>
> https://github.com/IgnoredAmbience/yahoo-group-archiver


Just in case, I've saved all the contents of my Yahoogroups subscriptions
with another utility, PG Offliner, available here:
http://www.personalgroupware.com/downloads.htm

This other one in Python looks interesting.

Gracias | Regards - Saludos | Greetings | Freundliche Grüße | Salutations
-- 
*Sergio Pedraja*

Re: Unix v2 in PDP-7 assembly language

[SPC via cctalk]

El vie., 18 oct. 2019 a las 23:26, Paul Koning via cctalk (<
cctalk@classiccmp.org>) escribió:

> Neat.  I remember seeing a PDP-7 at DECUS as part of a display honoring
> the early history of Unix.  It wasn't running, unfortunately, but it looked
> like a complete machine.  That was in The Hague, in the 1980s.
>
> Does this run on SIMH?  That has PDP-7 emulation.
>

Yeah. For years, in fact. It even runs a reconstructed version of UNIX v1.

Regards
Sergio

Re: Connecting SIMH to teletype via USB

[SPC via cctalk]

El sáb., 14 sept. 2019 6:09, J. David Bryan via cctalk <
cctalk@classiccmp.org> escribió:

> On Friday, September 13, 2019 at 18:31, Charles via cctalk wrote:
>
> > I'm using a slightly older SIMH and user's guide (3.8 something). This
> > SIMH will not allow Set Console Serial, apparently
>
> Serial support is not present in versions prior to 4.0.
>

I plugged in one DEC VT220 terminal to a version of SIMH 3.x running UNIX
V7 (and CP/M and CTSS but that's another story) about four years ago, by
serial port. I used one utility program (available for free at this time)
to redirect a serial port to tcp/ip. I don't have its name at hand now,
sorry.

Regards,
Sergio

Re: at unix pc

[SPC via cctalk]

I am the owner of one in working condition and any kind of software and
complements would be appreciated, of course.

Kind Regards
Sergio

2017-08-27 21:29 GMT+02:00 emanuel stiebler via cctalk <
cctalk@classiccmp.org>:

> anybody still uses them, collects them?
>
> I have to move, so I'm trying to thin out my collection of
> those ...
>
> If you like one, looking for documentation, etc. drop me an email please.
>
> Cheers
>

Re: SimH PDP-8 simulator plays music

[SPC via cctalk]

Impressive. At least for me :-0

Regards
Sergio

2017-04-05 16:43 GMT+02:00 Kyle Owen via cctalk :
> I suspected that I could somehow get some music out of the SimH PDP-8
> simulator for a while now, if I could only make it run real time and toggle
> a GPIO pin fast enough say, on a Raspberry Pi. That may still be doable in
> the future, but I also had a suspicion that I could generate music not in
> real time.
>
> I finally got around to trying out my idea last night. A few lines were
> added to pdp8_cpu.c to spit out the elapsed instruction cycles every time a
> CAF instruction is executed, the default "noise" instruction in the MUSIC.PA
> program.
>
> That's all I did to the simulator. I then ran MUSIC with a given .MU file
> and watched as many integers are spit out onto the screen. These were
> copied and pasted into a new text file and saved.
>
> The rest of it is in a single C program that I cobbled together. It reads
> in this new text file and generates a series of pulses as an array of
> floats. Each interval is about 1.93 microseconds, which I calculated to be
> the average number of pulses for the music program to be "in tune" with
> A=440 Hz, plus or minus. This value is subject to change, particularly as
> the notes get higher in frequency, but only by perhaps 6% or so from my
> experiments. One detail to note is that per the recommendation of the
> MUSIC.PA manual, these pulses are extended to roughly 6 microseconds, or
> three time intervals in my program.
>
> This array of floats is then downsampled use libsamplerate to 44.1 kHz
> (from 1/1.93 microseconds, or roughly 520 kHz) and output to a canonical
> WAV file, 16-bit single channel.
>
> What do you know, it worked! Here's a sample:
> https://www.youtube.com/watch?v=_urDcyluX9c
>
> My code can be found here, for those interested:
> https://github.com/drovak/music
>
> Presumably, this technique could be used to generate music from any given
> computer simulator.
>
> Thanks,
>
> Kyle

Re: DEC frontpanel switch replica!

[SPC via cctalk]

Well... I'm needing some of them for my PDP8/E. So I think this is a good idea.

Regards
Sergio

2017-03-16 1:30 GMT+01:00 Philipp Hachtmann via cctalk :
> Hi folks,
>
> this might be quite interesting for the folks that miss front panel switch
> handles!
>
> As some of you might know I'm currently working (a bit) on a new batch of
> Omnibus USB boards. And I have announced that there will be a kind of handle
> for the boards this time... I went to my neighbour and showed him some bits
> and pieces. He has a nice little workshop for concrete artwork
> (https://www.fritzundfranz.com/) and spent a lot of time into perfecting his
> moulding skills.
> I gave him a pdp8/e yellow switch handle with broken axle (usual problem) to
> try what can be done.
> Today I came home and he gave me the piece saying that he was unable to
> replicate it. I took it (a bit frustrated) and stated that he has somehow
> ruined the surface... Haha! It was the replica!
> He told me that this was a first "fast" shot including a "rough"
> approximation of the colour.
>
> I was stunned!
>
> Here you can see pictures. Even the defects of the original have been
> replicated.
>
> https://www.dropbox.com/sh/sih4qrrw4o3zgbh/AACf7kY7MbGDLt5FYJgfI4kDa?dl=0
>
> He told me that it was a bit difficult to get the holes at the side right. I
> think that it would be no problem if they'd be more shallow or even gone.
>
> * His material is less translucent than the original. Won't probably change.
> So a perfectionist could spot the difference.
>
> * He states that he can hit colors even better! (Think of the special
> colors!!!)
>
> * The axle stubs would be omitted and made of steel (something I already
> plan for repair of that weakest point)
>
> * He is able to produce flawless finish (remember: it's a raw prototype!)
>
> This is not my business. I told him that I'd ask around if there would be
> serious interest. He is not in vintage computing and does not work for free.
> So one piece would probably cost around 5-15 EUR each, depending on demand,
> color etc.
>
>
> Please give some feedback!
>
>
> Philipp :-)

Re: 3B2 stuff-maybe

[SPC via cctalk]

Thanks. I must check my 3B2/400 and the 3B1. The first one had some
issues but I don't touched it for a long time.

Regards
Sergio

2017-03-07 18:08 GMT+01:00 Electronics Plus via cctalk :
> I called the only place I know of that supported 3B2 stuff, which is
> Communications Hardware in TX. They recently had a change in technicians,
> and a lot of the older stuff they no longer support got culled, but they are
> willing to look for boards, drives, or whatever would help the collectors
> get their machines up and running again. I described the documentation set
> to them, and they will look for it. Any parts you want, send me a list, and
> they will hunt for me.
>
>
>
> Cindy Croxton
>

Re: How I came to vintage computers

[SPC]

That's fine, Philipp (at least for me).

Thanks for share this with us.

Kind Regards
Sergio Pedraja

2017-02-14 23:28 GMT+01:00 Philipp Hachtmann :
> Hey folks,
>
> after my OmniUSB-thread has gone down the teleprinter way... I'll start a
> new thread.
>
> Did you now how I came to vintage computers? How I became some kind of
> computer engineer? Probably not. It's so easy. Listen. Long story ahead.
>
> In 1999 I started to study computer science. Java and algorithms and all
> that clean stuff.
> One day in autumn 2000 I had that idea: I need a Fernschreiber
> (=teleprinter)! I had nothing to do with that stuff. And I did no know how
> it worked. I even did not remember having seen one. It was just that word in
> my head.
> So I bought my first Siemens T100 (still here in the house, two floors below
> me). It was a machine with strange connectors which made awful noise when
> connected to power.
> So I went to the library and found a good book from 1934. That told me how
> the teleprinter works.
> I then somehow soldered a simple interface to connect that beast to the
> parallel (!!!) port of my Linux server (the first hachti.de server was a
> mainboard and a harddisk in the corner of my student home where we had
> 10mbit LAN acess and fixed IP. I even did a DNS reverse mapping
> philipp.vorstrasse.uni-bremen.de for my IP).
> At that time all about programming I knew was Turbo Pascal, some Z80 machine
> language (not assembly language, I programmed that beast in hex) and a bit
> Java. I didn't even know much about Linux. The server back then had been
> setup by someone else who was in need of a server. So he used it as well.
> I used the parallel port because I had an idea how to control the pins. I
> knew that there was something ugly called serial port but I had not yet made
> the connection that this was EXACTLY what I would have needed.
>
> To program that thing I needed some software. So I went to the bookstore at
> noon. Will never forget that. Bought the O'Reilly Linux Kernel drivers book
> (the one with the horse) and started to write my first C program ever. It
> was a kernel module. The Kernel must have been Linux 2.2. It was
> frustrating. But after a decent 30 hour nonstop session and hundreds of
> reboots (haha, of my web and mail server which was also running X from time
> to time) I really had some bitbang code which made the teleprinter say what
> I wanted it to say.
> I soon realised that with a multitasking OS like Linux I had the choice of
> outputting correct data using busy wait in Kernel or outputting a mess when
> the system gets under load. So I learned THAT lesson.
> I decided that I needed something else. Because I had heard of other people
> working with something called PIC Microcontroller, I bought one and a
> programmer. And a breadboard. That evil 16f84 was sitting there on my desk,
> naked, and did - nothing.
> Getting the PIC up and running was pure horror. The hardest architecture
> I've ever mastered. Since then I know: PIC is a load of complete shit! In
> the end I failed to create a RS232 (had learned that in the meantime) to
> teleprinter converter but had the idea to hook up two teleprinters using
> modems. TelexPhone was born. The project (telexphone.net) was eventually
> kind of stolen a few years later and continued to something still in
> existence called i-telex over internet. That was never what I wanted because
> the V21 modems (hard to find!!) are bit transparent. That means that the
> teleprinters on both sides of the wire run as synchronous as with a real
> wire between them. Very cool. The TelexPhone used a 16f876 with a approx 2k
> cooperative multitasking system written entirely in assembly. It was somehow
> modular. I managed to hook in modules with private main loop and init parts
> by writing an impressive linker script which automated that.
> Hey, I was 21 and did all that on my own! Please do NOT laugh!
>
> In the meantime someone somewhere invented something called eBay. And
> because It's always good to have several different devices of the same type
> and even better to have several examples of each those different devices, I
> had an eBay search for "Lochstreifen" which means punched paper tape. Paper
> tape for teleprinter, of course.
>
> One day I found an offer "Honeywell H316 minicomputer" which sounded
> interesting. With paper tape. And no pictures. In Switzerland. A quick
> search (probably already google? I used altavista.digital.com before) told
> me that this could be an interesting toy. So I bought it for the incredible
> amount of SFr 450.
> Borrowed a car and went there. What I found was some messy stuff somewhere
> on an uninsulated attic in Switzerland. Very dirty. I nearly turned down the
> deal because it all looked so crappy. The seller admitted that he had kept
> the stuff in that open attic since beginning of the 1980s.
> I took it home. Had to drive TWICE from Bremen to Switzerland to get it all.
> And it 

Re: Selling off my collection

[SPC]

Marvellous collection. On the other hand, so far from me to get or
purchase anything else. The CP/M would be my choice but...

Good luck with all the process. Hope all goes well, by the way.

Kind Regards
Sergio

2017-01-26 3:22 GMT+01:00 Sellam Ismail :
> I'm starting the long process of selling off my entire collection.  There's
> a lot to go through.  Some more details are here:
>
> http://www.vcfed.org/forum/showthread.php?55964-Selling-Off-the-Collection
>
> And some photos are here:
>
> http://s350.photobucket.com/user/Sellam_Abraham/library/
>
> Keep in mind the machines represented here are the cream of the crop.  I
> have much more stuff in the form of 40 pallets that needs to get sorted
> through and moved on.  I'll be much more inclined to sell off that stuff
> quickly, but with these I am ready to take my time.  That being said, I'll
> entertain any reasonable offer.
>
> I still have a bunch of photos of magazines to post (just scratching the
> surface).  Pallets worth.
>
> Probably best to contact me directly if you're interested in something.  I
> have much, much more.
>
> Thanks for looking!
>
> Sellam

Re: DEC kit on offer in Sussex, England

[SPC]

I'm looking for one VT220 too. The motherboard of the last one is
dead. It would need shipment but I'll afford the costs. Feel free to
put us in contact.

Kind Regards
Sergio

2016-11-29 14:06 GMT+01:00 Adrian Graham :
> On 29 November 2016 at 10:08, Liam Proven  wrote:
>
>> A couple of VT220s
>>
>> An LQP02 - the drive belts have rotted :(
>>
>> A Vaxmate
>>
>> A Rainbow
>>
>
> I have a collector friend who's been looking for a VT220 for $YEARS, he'd
> be chuffed if I could pick one up for him, and while I shouldn't really be
> taking in anything bulky I'd be quite partial to a VAXmate. I can't put a
> value on things like this because I give my spare DEC stuff away.
>
> Cheers!
>
>
> --
> adrian/witchy
> Owner of Binary Dinosaurs, the UK's biggest home computer collection?
> www.binarydinosaurs.co.uk

Re: FTGH: COGNOS software kit

[SPC]

Cognos aka Quasar Corporation and its 4GL language 'PowerHouse'.
Originally produced for the HP3000 and later acquired by IBM and later
by UNICOM.

I've never worked with this stuff but I'm curious. There was a PC
versión, by the way.

I've live in Europe but if no one want it I could be. It's sad the
lack of software.

Regards
Sergio

2016-11-05 18:15 GMT+01:00 Toby Thain :
> Hi,
>
> I've had this box for a few years and wanted to see if it's interesting to
> anyone on the list.
>
>   http://imgur.com/a/dm1vR
>
> Apparently everything but the software itself. :/
>
> If there is genuine interest I can list the contents of the box. It won't be
> cheap to ship though. Located in Toronto, ON.
>
> --Toby

Re: ContrAlto V1.1 Released

[SPC]

2016-10-27 22:50 GMT+02:00 Josh Dersch :

> ContrAlto can be downloaded from:
> http://www.livingcomputers.org/Join/Online-Systems.aspx.
>
>  Thanks!
>
> - Josh

Hi. I'm trying to reach
http://prevlcm2.corp.vnw.com/Join/Online-Systems/ContraltoSetup.aspx
but it returns a DNS error.

Regards
Sergio.

Re: Second release of the HP 3000 Series III simulator

[SPC]

2016-07-07 17:36 GMT+02:00 J. David Bryan :

> The second release of the HP 3000 Series III simulator is now available
> from the Computer History Simulation Project (SIMH) site:
>
> ​[...] ​
> ...has been updated to add the following features:
>
>   - Preinstalled User-Defined Commands (UDCs) provide access to the COBOL
> 74 compiler with the MPE-V/E :COBOLII, :COBOLIIPREP, and :COBOLIIGO
> commands, and to the COBOL 85 compiler with :COBOLIIX,
> :COBOLIIXPREP, and :COBOLIIXGO.  However, note that the simulator
> currently does not provide the HP 32234A COBOL II firmware
> instructions, so programs generated by the COBOLII compiler will
> abort at run time with "ILLEGAL INSTRUCTION" errors, limiting the
> current utility of the compilers to syntax checking.
>
>
>
​So​ I assume that we can make operative programs *only* with the COBOL 74
compiler, Isn't so ?

Kind Regards
Sergio

Re: Front Panels - PDP-8/e , PDP-8/f and PDP-8/m are ex-stock

[SPC]

2016-07-07 7:30 GMT+02:00 Rod Smallwood :

> Hi Guys
>
> +++  Panels stocked and ready to ship
> +++
>
> I am pleased to be able to announce the following PDP-8 front panels are
> now ex-stock.
>
>  Stock levels are 10 or less of:
>
> PDP-8/e (Type A)
>
> PDP-8/e (Type B)
>
> PDP-8/f
>
> PDP-8/m
>
> Please order now as each type takes ten days to make and  the
> manufacturing slot for each comes round once in six weeks.
>
>Rod (Panelman) Smallwood
>
>
​I must check the front panel ​of my PDP8-E/e. Perhaps I will be interested
in purchase one.

I'll be in touch.

Kind Regards
Sergio

Re: Xerox Star Software Images Available

[SPC]

2016-06-05 23:22 GMT+02:00 Al Kossow :

> http://dandelion.sen.cx/
>
> On 6/5/16 2:13 PM, Al Kossow wrote:
>
> > there has been mention of someone reverse engineering the linear power
> supply
> >
> >
>
>
​Any emulator ready to run this software?

Kind Regards
​Sergio

Re: 3B2 C compiler and Assembler

[SPC]

Hi. I am searching for a long time a similar set of 5.25 diskettes for my
3B1. If someone could provide me a copy it would be great.

Kind Regards
Sergio

2016-04-06 6:45 GMT+02:00 Jerry Kemp :

> Thank you again for all the updates, and all the work you have done on the
> 3B2 project.
>
> I can't wait to be able to work with it again sometime soon,
>
> Jerry
>
>
>
> On 04/ 5/16 11:58 AM, Seth Morabito wrote:
>
>> * On Sat, Apr 02, 2016 at 10:54:22PM -0500, Seth Morabito <
>> li...@loomcom.com> wrote:
>>
>>> Now that I have my 3B2/300 up and running, I'd like to get developer
>>> tools installed. Unfortunately, I can't find any of them on the web
>>> anywhere.
>>>
>>
>> Folks,
>>
>> Thanks to several kind offers off-list, I now have all the developer
>> tools in hand. I'm building up a catalog and archive of 3B2 software
>> and hope to make it available online in the near future, so others in
>> need can find it more easily.
>>
>> -Seth
>>
>>

Andrew S.Grove 1936-2016

[SPC]

https://newsroom.intel.com/news-releases/andrew-s-grove-1936-2016/?utm_content=buffer5c774_medium=social_source=linkedin.com_campaign=buffer

Gracias | Regards - Saludos | Greetings | Freundliche Grüße | Salutations
​
-- 
*Sergio Pedraja*
-- 
twitter: @sergio_pedraja | skype: Sergio Pedraja
--
http://plus.google.com/u/0/101292256663392735405
http://www.linkedin.com/in/sergiopedraja
-
No crea todo lo que ve, ni crea que está viéndolo todo

Re: where I've landed

[SPC]

No doubt, dude. Can anyone go to take a lunch?
Sergio.

2016-03-14 6:43 GMT+01:00 CuriousMarc :

> Awesome!
> Marc
>
> -Original Message-
> From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Ian S.
> King
> Sent: Thursday, March 10, 2016 6:08 PM
> To: General Discussion: On-Topic and Off-Topic Posts
> Subject: OT: where I've landed
>
> Hi all,
>
> I informed the list when I left the Living Computer Museum, so it seems
> appropriate to tell you where I've landed.  My new employer was in the news
> this week:
>
>
> http://arstechnica.com/science/2016/03/behind-the-curtain-ars-goes-inside-blue-origins-secretive-rocket-factory/
>
> The second photo is the view from where I ate lunch yesterday.  The fun
> literally never stops living the dream! -- Ian
>
> PS: of course I'm finishing my doctorate - I'm kind of vested in it by now.
>  :-)
> --
> Ian S. King, MSIS, MSCS, Ph.D. Candidate The Information School <
> http://ischool.uw.edu>
> Dissertation: "Why the Conversation Mattered: Constructing a
> Sociotechnical Narrative Through a Design Lens
>
> Archivist, Voices From the Rwanda Tribunal 
> Value Sensitive Design Research Lab 
>
> University of Washington
>
> There is an old Vulcan saying: "Only Nixon could go to China."
>
>

Re: Pdp-10 emulation

[SPC]

2016-03-03 22:24 GMT+01:00 Phil Budne :

> Noel wrote
> > Actually, as an operating system, ITS is far more interesting (virtual
> > devices, etc)
>
> There are "assigned numbers" for mit-ml-dev over UDP and TCP
> (ports 83 and 85)!
>
> I did find this:
> http://victor.se/bjorn/its/ch11.php
>
> Which simulates the CH11 (unibus) Chaosnet interface (presumably for
> the KS10 simulation) under KLH10 and encapsulates chaosnet traffic in
> UDP.
>
> And mentions the magic file names involved!
>

​Yeah. Great work. This is available long time ago. I'm happy to see it
online yet.

Kind Regards
Sergio Pedraja

Re: VT100 and/or VT105 rescued from scrap

[SPC]

I got two VT100 that I'd need to repair. I'll we watching this thread too.
I'm libing in Spain, by the way.

Kind Regards
Sergio

2015-10-21 3:56 GMT+02:00 Paul Anderson :

> I have most of the VT100 family parts, and can help somewhat in identifying
> part numbers.
>
> If you need any, feel free to contact me off list.
>
> Paul
>
> On Tue, Oct 20, 2015 at 11:11 AM, Lukas Kaminski <
> lukas.kamin...@krankikom.de> wrote:
>
> > Hello list,
> >
> > i got hands on several VT100 and VT105 parts. It SEEMS (at least to me)
> > to be one complete terminal without a power supply and some additional
> > parts. I took pictures of everything, which can be seen here:
> > https://antares.krankikom.de/index.php/s/vcIZuHbpsn3lSoL
> > (sorry for the self-signed certificate)
> >
> > I already found this interesting page:
> > https://github.com/bbenchoff/VT100Adapter, so i guess i have everything
> > to try to repair the VT100.
> >
> > But i never tried something like that, and i fear to break something as
> > soon i connect anything to power.
> >
> > How should i start? I especially don't know how to clean the boards,
> > check the eproms and i'm afraid that the CRT is broken, since it has a
> > sticky fluid on it.
> >
> > Bye,
> >
> > Lukas Kaminski
> >
>

Re: A new Lisp-based OS that hearkens back to the old days of comprehensible computers

[SPC]

Very interesting. I must do an end-of-training project this year involving
Rapsberry Pi devices. Perhaps I'll give it a try.

Regards
Sergio

2015-09-29 14:20 GMT+02:00 Liam Proven :

> A little offtopic but I hope of some interest.
>
> I rather miss the days of small, simple, 8-bit computers which a
> single non-specialist could really get inside and understand.
>
> The latest OS I've seen which addresses this longing is Interim.
>
>
> http://interim.mntmn.com/
>
>
> This is most of the introduction from the explanatory paper:
>
>
> «
> Computers, networks and the software running them today are shrouded in
> mysteries and corporate secrecy. As miniaturization progresses in the name
> of mobility and energy-efficiency, an increasing amount of complex
> functionality is crammed into ever smaller System-on-Chip dies.
>
>
> The so-called "Home computers" of the 1980s contained comparably larger
> and simpler circuit boards with blocky, easily discernible DIP (Dual
> in-line package) components and circuits that could be visually understood
> by the human eye. The central processing unit (CPU) was easily identified
> by its size and exposed placement. The separate memory chips were neatly
> arranged like terraced houses. The computers worked in pedestrian
> single-digit-Mhz speeds and memory was measured in kilobytes. They shipped
> with handbooks that taught a novice reader how to program the machine, and
> a circuit diagram of the whole machine – useful for repairs – was easily
> available.
>
>
> In the 1980s home computer era, operating systems where typically stored
> in read-only memory (ROM) chips. As in modern proprietary operating
> systems, the source code was not directly available, but this was not
> strictly necessary, as they were written in assembly language and not
> "compiled" from a higher level language. Commented "dis-assemblies",
> machine code listings, were available in printed book form [Schineis1984]
> for popular computers like the Commodore 64 and its "KERNAL" OS and BASIC
> language interpreter.
>
>
> Today, we have Linux, probably the most successful open source Unix-like
> operating system and the BSD family of OSes, but these systems and most of
> the platforms they run on (PCs, ARM-based telephones) are so complex and
> contain so many obscure components that no single book can describe their
> operating principles in full detail, and trying to understand and master
> them is a task that takes many years of study.
>
>
> With "Interim", I try to describe a computer and operating system that
> takes advantage of modern-day hardware technology while ideally being
> fully comprehensible in a couple of days. My strategy is to use minimalism
> and generic, reusable patterns wherever possible while learning from
> historical, ultimately unsuccessful but valuable attempts like Lisp
> machines or the operating system Plan 9 from Bell Labs [Pike]. The Interim
> system is supposed to be a pointer in the right direction, not a perfect
> blueprint, and a documentation of my own experimental attempts. Others may
> build upon these ideas.
> »
>
> (Yes, it's Lisp-y.)
>
> The previous OS with this view being TempleOS: http://www.templeos.org/
>
> This is a nice explanatory quote:
>
> «
> The main reasons TempleOS is simple and beautiful are because it's
> ring-0-only and identity-mapped.  Linux wants to be a secure,
> multi-user mainframe.
> That's the vision for Linux.  That's why it has file permissions.  The
> vision for
> TempleOS is a modern, 64-bit Commodore 64.  The C64 was a home computer
> mostly used for games.  It trained my generation how to program.  It was
> simple,
> open and hackable.  It was not networked.  The games were not multimedia
> works
> of art, but generated programmatically with innocent, programmer
> (non-artist)
> quality graphics.  It was simple and unsecure.  If you don't have malware
> and you don't have bugs, protection just slows things down and makes the
> code
> complicated.
> »
>
>
> Source: http://www.templeos.org/Wb/Home/Wb2/TempleOS.html
>
>
> --
> Liam Proven • Profile: http://lproven.livejournal.com/profile
> Email: lpro...@cix.co.uk • GMail/G+/Twitter/Flickr/Facebook: lproven
> MSN: lpro...@hotmail.com • Skype/AIM/Yahoo/LinkedIn: liamproven
> Cell/Mobiles: +44 7939-087884 (UK) • +420 702 829 053 (ČR)
>

Re: 12" Floppy Disks

[SPC]

I'm almost sure that he's thinking in one 5 1/4" of 1.2 mb capacity.

Kind Regards
Sergio Pedraja

2015-09-15 10:51 GMT+02:00 Eric Smith :

> On Tue, Sep 15, 2015 at 2:39 AM, Adrian Graham
>  wrote:
> > I've been contacted by a teacher who's looking for any information about
> > 12" floppies. Am I imagining that they really existed? I'm sure I've seen
> > one or seen adverts for them, maybe at Bletchley Park. Others he's
> > contacted think he's getting confused with 12" laser discs but I'm not so
> > sure.
>
> When IBM introduced the floppy disk in 1971, they were 8-inch, and
> that became industry standard, partially supplanted by 5 1/4" when
> Shugart introduced those in 1976, then 3.5" introduced by Sony and HP
> in 1982. There were a few other oddball sizes like 4", 3 1/4", 3", 2
> 1/2", and 2", but none of them were very successful. The market
> pressure was always to reduce the size of the medium, so I can't
> imagine why anyone would have made 12" floppy disks.
>