[cctalk] Re: Ward Christensen (BBS, XMODEM) has died

I'm afraid time abides no one! It seems that the greats were of an earlier time, no pun intended, but they were pioneers who made technology work for them.Happy computing. Murray 🙂 On Sun, Oct 13, 2024 at 9:05 PM Fred Cisin via cctalk wrote: > 1945 - 2024 > > Found dead 10/11/24 in a "wellness c

[cctalk] Re: Ward Christensen (BBS, XMODEM) has died

> 1945 - 2024 > Found dead 10/11/24 in a "wellness check". > Little or no other information yet. I was trying to find an obit for this. His Wikipedia entry is updated, but as of a couple hours ago had no citation for his date of death. -- personal: http://w

[cctalk] Re: Ward Christensen (BBS, XMODEM) has died

1945 - 2024 Found dead 10/11/24 in a "wellness check". Little or no other information yet. Ward Christensen created the first "BBS". Then, when he needed to transfer files, he created XMODEM. The XMODEM protocols became the de facto standard for transferring files. Later, there was some compe

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

You can test, but iirc the message comes through, just no attachments? On Sun, Oct 13, 2024, 3:10 AM hupfadekroua via cctalk wrote: > Will emails with embedded/attached photos send to this list published or > dropped? > > Andreas

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

On Sun, Oct 13, 2024 at 8:10 AM hupfadekroua via cctalk < cctalk@classiccmp.org> wrote: > Will emails with embedded/attached photos send to this list published or > dropped? > > Andreas Dropped. Sellam

[cctalk] Re: CDC Cyber 180/8xx PSU

On 10/12/24 22:26, ben via cctalk wrote: On 2024-10-12 7:40 p.m., Jon Elson via cctalk wrote: On 10/12/24 20:07, Jon Elson via cctalk wrote: On 10/12/24 16:25, Wayne S via cctalk wrote: Didn’t all the IBM mainframes use 400hz? Maybe ask the IBMers how they got 400hz. Also, can the local power

[cctalk] Re: CDC Cyber 180/8xx PSU

Water cooled > Am 13.10.2024 um 11:15 schrieb ben via cctalk : > > On 2024-10-12 7:40 p.m., Jon Elson via cctalk wrote: >>> On 10/12/24 20:07, Jon Elson via cctalk wrote: >>> On 10/12/24 16:25, Wayne S via cctalk wrote: Didn’t all the IBM mainframes use 400hz? Maybe ask the IBMers how they

[cctalk] Re: CDC Cyber 180/8xx PSU

On 2024-10-12 7:40 p.m., Jon Elson via cctalk wrote: On 10/12/24 20:07, Jon Elson via cctalk wrote: On 10/12/24 16:25, Wayne S via cctalk wrote: Didn’t all the IBM mainframes use 400hz? Maybe ask the IBMers how they got 400hz. Also, can the local power company supply it? Oh, the IBM 7090 seri

[cctalk] Re: CDC Cyber 180/8xx PSU

On 10/12/24 20:07, Jon Elson via cctalk wrote: On 10/12/24 16:25, Wayne S via cctalk wrote: Didn’t all the IBM mainframes use 400hz? Maybe ask the IBMers how they got 400hz. Also, can the local power company supply it? Oh, the IBM 7090 series had a 400 Hz motor generator.  The mid-range IBM 3

[cctalk] Re: CDC Cyber 180/8xx PSU

On 10/12/24 16:25, Wayne S via cctalk wrote: Didn’t all the IBM mainframes use 400hz? Maybe ask the IBMers how they got 400hz. Also, can the local power company supply it? The IBM 370/145 definitely used 400 Hz internally, there was a 60 Hz 3-phase to 400 Hz 3-phase motor-alternator in the ba

[cctalk] Re: CDC Cyber 180/8xx PSU

On 10/12/24 13:22, Van Snyder via cctalk wrote: > Like Felix Unger in The Odd Couple, did you wear your seat belt in the > drive-in theater? I ran the projectors--how the heck could I manage changeovers wearing a seat belt?

[cctalk] Re: CDC Cyber 180/8xx PSU

Didn’t all the IBM mainframes use 400hz? Maybe ask the IBMers how they got 400hz. Also, can the local power company supply it? Sent from my iPhone > On Oct 12, 2024, at 14:03, Nigel Johnson Ham via cctalk > wrote: > > Hmm, I think the 40 years has expired, so I can tell the story of the MG a

[cctalk] Re: CDC Cyber 180/8xx PSU

Hmm, I think the 40 years has expired, so I can tell the story of the MG at NATO HQ... It had a two-ton flywheel, and a standby generator off a side shaft that kicked in if commercial AC failed.  Problem was, the building was wired with incorrect phase colouring, so when they installed it all t

[cctalk] Re: CDC Cyber 180/8xx PSU

> On Oct 12, 2024, at 4:54 PM, Jon Elson via cctalk > wrote: > > On 10/12/24 14:30, Paul Koning via cctalk wrote: >> Years ago I commented (on this list, probably) that a "VFC" would likely >> make a good 400 Hz supply. VFC is "Variable frequency controller", a device >> that takes mains i

[cctalk] Re: CDC Cyber 180/8xx PSU

On 10/12/24 14:30, Paul Koning via cctalk wrote: Years ago I commented (on this list, probably) that a "VFC" would likely make a good 400 Hz supply. VFC is "Variable frequency controller", a device that takes mains input and turns it into three phase output of a frequency of your choice. The

[cctalk] Re: CDC Cyber 180/8xx PSU

> On Oct 12, 2024, at 3:47 PM, Chuck Guzis via cctalk > wrote: > > On 10/12/24 11:54, Brent Hilpert via cctalk wrote: > . >>> Another approach would be to substitute the old psu by modern ones, >>> possibly by DC-DC converters or switching powersupplies. >>> >>> Does someone have experience

[cctalk] Re: CDC Cyber 180/8xx PSU

On 2024-10-12 1:47 p.m., Chuck Guzis via cctalk wrote: On 10/12/24 11:54, Brent Hilpert via cctalk wrote: I remember summer employment at a drive-in movie theater during my summers working as a projectionist. Power supply for the DC carbon arc lamps was supplied by a 40 Hp MG set located in i

[cctalk] Re: CDC Cyber 180/8xx PSU

On Sat, 2024-10-12 at 19:47 +, Chuck Guzis via cctalk wrote: > On 10/12/24 11:54, Brent Hilpert via cctalk wrote: > . > > > Another approach would be to substitute the old psu by modern > > > ones, possibly by DC-DC converters or switching powersupplies. > > > > > > Does someone have experienc

[cctalk] Re: CDC Cyber 180/8xx PSU

On 10/12/24 11:54, Brent Hilpert via cctalk wrote: . >> Another approach would be to substitute the old psu by modern ones, possibly >> by DC-DC converters or switching powersupplies. >> >> Does someone have experience in the substitution of psus in the multiple KW >> range or did this in the pas

[cctalk] Re: CDC Cyber 180/8xx PSU

Years ago I commented (on this list, probably) that a "VFC" would likely make a good 400 Hz supply. VFC is "Variable frequency controller", a device that takes mains input and turns it into three phase output of a frequency of your choice. The upper frequency is typically fairly low; I don't t

[cctalk] Re: CDC Cyber 180/8xx PSU

On 2024Oct 12,, at 4:51 AM, hupfadekroua via cctalk wrote: > > after approx 30 years of waiting our time has come to get hands on a Cyber > 180/860a. ... > Another approach would be to substitute the old psu by modern ones, possibly > by DC-DC converters or switching powersupplies. > > Does s

[cctalk] Re: CDC Cyber 180/8xx PSU

The system is based in a minimal configuration of the following racks using a own psu per unit. CPU Interconnect Memory IOU to be extended by a second CPU rack for a dual processor configuration. If the interconnect rack does have an own psu we don‘t know now, since this unit has to be picke

[cctalk] Re: CDC Cyber 180/8xx PSU

On Sat, 2024-10-12 at 14:47 +, Chuck Guzis via cctalk wrote: > On 10/12/24 04:51, hupfadekroua via cctalk wrote: > > Hi all, > > > > after approx 30 years of waiting our time has come to get hands on > > a Cyber 180/860a. > > > > These systems as other systems before are using 400Hz psus. >

[cctalk] Re: CDC Cyber 180/8xx PSU

On Sat, 2024-10-12 at 08:24 -0400, Michael Thompson via cctalk wrote: > Would a motor generator be less expensive? AC-DC-AC high-voltage long-distance transmission lines such as the Pacific Intertie originally used motor generators, then thyratrons, now all semiconductors. > > On Oct 12, 2024, at

[cctalk] Re: CDC Cyber 180/8xx PSU

On Sat, 2024-10-12 at 14:51 +0300, hupfadekroua via cctalk wrote: > Hi all, > > after approx 30 years of waiting our time has come to get hands on a > Cyber 180/860a. > > These systems as other systems before are using 400Hz psus. > > One approach would be to use a 50Hz/400Hz power converter. Th

[cctalk] Re: CDC Cyber 180/8xx PSU

On 10/12/24 08:23, Jon Elson via cctalk wrote: > On 10/12/24 09:47, Chuck Guzis via cctalk wrote: >> On 10/12/24 04:51, hupfadekroua via cctalk wrote: >>> Hi all, >>> >>> after approx 30 years of waiting our time has come to get hands on a >>> Cyber 180/860a. >>> >>> These systems as other systems

[cctalk] Re: CDC Cyber 180/8xx PSU

On 10/12/24 09:47, Chuck Guzis via cctalk wrote: On 10/12/24 04:51, hupfadekroua via cctalk wrote: Hi all, after approx 30 years of waiting our time has come to get hands on a Cyber 180/860a. These systems as other systems before are using 400Hz psus. ISTR that 400Hz 3-phase is required. Th

[cctalk] Re: CDC Cyber 180/8xx PSU

On 10/12/24 06:51, hupfadekroua via cctalk wrote: Hi all, after approx 30 years of waiting our time has come to get hands on a Cyber 180/860a. These systems as other systems before are using 400Hz psus. One approach would be to use a 50Hz/400Hz power converter. There are ones on the market c

[cctalk] Re: CDC Cyber 180/8xx PSU

On 10/12/24 04:51, hupfadekroua via cctalk wrote: > Hi all, > > after approx 30 years of waiting our time has come to get hands on a Cyber > 180/860a. > > These systems as other systems before are using 400Hz psus. ISTR that 400Hz 3-phase is required.

[cctalk] Re: CDC Cyber 180/8xx PSU

Would a motor generator be less expensive? > On Oct 12, 2024, at 7:51 AM, hupfadekroua via cctalk > wrote: > > Hi all, > > after approx 30 years of waiting our time has come to get hands on a Cyber > 180/860a. > > These systems as other systems before are using 400Hz psus. > > One approach

[cctalk] Re: RSTS and big MSC disks

> On Oct 9, 2024, at 5:27 PM, Zane Healy wrote: > > On Oct 9, 2024, at 10:22 AM, Paul Koning via cctalk > wrote: >> >> Earlier there was a question about MSCP disk sizes. I did some checking. >> >> RSTS understands all the devices known by name in SIMH, including the >> "giant" RF73. As

[cctalk] Re: Valuable floppy archiving: seeking current best practice

On Wed, 9 Oct 2024 at 19:25, Sellam Abraham via cctalk wrote: > > It sounds like the Apple //e of Europe :D I think there were more _unofficial_ Spectrum clones than Apple ][ clones. We didn't know about them until after the fall of the Iron Curtain and the rise of the Web though. _Official_ Spec

[cctalk] Re: Valuable floppy archiving: seeking current best practice

> MSX-DOS was created by Tim Paterson as a port to Z80 of MS-DOS 1.25.  The > rest, > and hardware, was primarily Japanese, but later marketed everywhere except > USA. I remember a handful of MSX-type systems in the USA, though, and some were widely advertised, like the pre-/almost-MSX Spectra

[cctalk] Re: Valuable floppy archiving: seeking current best practice

> On Oct 9, 2024, at 1:38 PM, Chuck Guzis via cctalk > wrote: > > Anent strange floppy formats--I recall there being one in the early 70s > that used a UART to encode an entire track (1 sector per track). I'm > not talking about using a USRT-but an honest-to-goodness 8-bit plus > parity start

[cctalk] Re: RSTS and big MSC disks

On Wed, Oct 9, 2024, 2:45 PM Zane Healy via cctalk wrote: > > On a related note, Paul, do you have any idea if RSTS/E can be installed > from a CD-ROM? I’ve done installs of RT-11 and RSX-11M+ from CD, but > couldn’t figure out how to do a RSTS/E install from CD. I can’t remember > if I was abl

[cctalk] Re: Valuable floppy archiving: seeking current best practice

On Wed, 9 Oct 2024, Wayne S via cctalk wrote: My pleasure. Be aware that not all floppy disks were written the same way. Regardless of different filesystems, there were different flux encoding schemes too. MOST are FM, MFM, or GCR. But not all. f'rinstance, Amiga is MFM, but does not use WD/I

[cctalk] Re: Valuable floppy archiving: seeking current best practice

Hmmm, MSX I only knew of MSX here in Australia (circa 1985/6 ish) because the shop where I hung out, ogling Toshiba T300 PC compatibles has an MSX machine they were trying to sell. I recall its colorful keyboard Kindest regards, Doug Jackson em: d...@doughq.com ph: 0414 986878 Follow my a

[cctalk] Re: Valuable floppy archiving: seeking current best practice

On 2024-10-09 2:30 p.m., Fred Cisin via cctalk wrote: MSX is unknown in USA! It was for Z80, and the disk format was MS-DOS . . . Generic PC clones got so cheap here that nobody would buy Z80 any more. On Wed, 9 Oct 2024, ben via cctalk wrote: I thought it was the cheap apple clones that di

[cctalk] Re: Valuable floppy archiving: seeking current best practice

My pleasure. Be aware that not all floppy disks were written the same way. Regardless of different filesystems, there were different flux encoding schemes too. Sent from my iPhone On Oct 9, 2024, at 15:07, Tom Stepleton wrote:  Thanks Wayne! It's handy to get topical advice, as interesting a

[cctalk] Re: Valuable floppy archiving: seeking current best practice

Thanks Wayne! It's handy to get topical advice, as interesting as musings about Gary Kildall and CP/M floppy standards may be :-) Cheers, --T On Wed, Oct 9, 2024 at 8:38 PM Wayne S wrote: > Tom, make sure to clean the heads of the floppy drive and check the heads > to see if they don’t have any

[cctalk] Re: Valuable floppy archiving: seeking current best practice

On Wed, 9 Oct 2024, Chuck Guzis via cctalk wrote: Anent strange floppy formats--I recall there being one in the early 70s that used a UART to encode an entire track (1 sector per track). I'm not talking about using a USRT-but an honest-to-goodness 8-bit plus parity start-stop, etc. device. Was t

[cctalk] Re: RSTS and big MSC disks

On Oct 9, 2024, at 10:22 AM, Paul Koning via cctalk wrote: > > Earlier there was a question about MSCP disk sizes. I did some checking. > > RSTS understands all the devices known by name in SIMH, including the "giant" > RF73. As of the "big disk" support, which is in V10.1 and I think a few

[cctalk] Re: Valuable floppy archiving: seeking current best practice

On 2024-10-09 2:30 p.m., Fred Cisin via cctalk wrote: MSX is unknown in USA! It was for Z80, and the disk format was MS-DOS I saw some at comdex. I waited for MSX machines to showup here, but it never happened, although I did find [and buy] a Yamaha MSX machine from Waite Group, at John Craig'

[cctalk] Re: Valuable floppy archiving: seeking current best practice

Anent strange floppy formats--I recall there being one in the early 70s that used a UART to encode an entire track (1 sector per track). I'm not talking about using a USRT-but an honest-to-goodness 8-bit plus parity start-stop, etc. device. Was that one an OSI innovation? -Chuck

[cctalk] Re: Valuable floppy archiving: seeking current best practice

I used several which did. MGT G+DOS was my personal favourite. MSX-DOS is CP/M-binary-compatible but uses MS-DOS FAT disks, with directories, because the same chap wrote them both: Tim Paterson. On Wed, 9 Oct 2024, ben via cctalk wrote: That is new to me, but what cpu? Where are the ADS for sai

[cctalk] Re: Valuable floppy archiving: seeking current best practice

Tom, If you would like some known good disks to test with, I'd be glad to format a few 8 inch disks for you to use as test disks. Just email me and we can figure it out. Chuck sent me a few disks when I was first setting up my 8 inch drives a few years back and that was invaluable. I'd be gl

[cctalk] Re: Valuable floppy archiving: seeking current best practice

Tom, make sure to clean the heads of the floppy drive and check the heads to see if they don’t have any sharp edges, from excessive wear, that could damage the disk. Also spin it up with a scratch disk to see if it spins okay. Check the source disk for mold and dirt and see if it spins smoothly

[cctalk] Re: Valuable floppy archiving: seeking current best practice

Re: Obscure disk formats. There is a couple projects with hardware that attempt and are pretty successful at doing this, including decoding the many copy protection schemes. Applesauce seems to be the most successful due to the creator being very involved and responsive to solving new issues

[cctalk] Re: Valuable floppy archiving: seeking current best practice

Roger are you aware of Applesauce and Greaseweasel? Sent from my iPhone > On Oct 9, 2024, at 11:50, ben via cctalk wrote: > > On 2024-10-09 4:08 a.m., Liam Proven via cctalk wrote: >>> On Wed, 9 Oct 2024 at 04:37, ben via cctalk wrote: >>> Dos also has no subdirectories. >> (?) > > >>> So d

[cctalk] Re: Valuable floppy archiving: seeking current best practice

On Wed, Oct 9, 2024 at 8:40 AM Liam Proven via cctalk wrote: > MGT made a range of disk interfaces for the ZX Spectrum. > > https://en.wikipedia.org/wiki/Miles_Gordon_Technology > > Little known in America but the Spectrum was one of the best-selling > microcomputers of all time, selling millions

[cctalk] Re: Valuable floppy archiving: seeking current best practice

On 10/9/24 07:49, Chuck Guzis via cctalk wrote: > https://ftldesign.com/Timex/ >From the above article: "The unit is as simple to operate as a standard record player; nothing to thread, no tape to break or tangle, no needles to wear out, no complicated controls, no accidental erasures." So Fred

[cctalk] Re: Valuable floppy archiving: seeking current best practice

On Wed, 9 Oct 2024 at 15:50, Chuck Guzis via cctalk wrote: > > The whole thing could be summarized under "How I spent my summer > vacation" or "The big C and me". Ohshit. Sorry to hear that. I hope that they nuke you till you glow and it's successful. -- Liam Proven ~ Profile: https://about.me

[cctalk] Re: Valuable floppy archiving: seeking current best practice

On Wed, 9 Oct 2024, Chuck Guzis via cctalk wrote: Floppy disk, wuzzat? I think it's one of these: https://i.imgur.com/XyzsyeD.jpg :D g. -- Proud owner of F-15C 80-0007 http://www.f15sim.com - The only one of its kind. http://www.diy-cockpits.org/coll - Go Collimated or Go Home. Some people

[cctalk] Re: Valuable floppy archiving: seeking current best practice

On 10/9/24 02:55, Liam Proven via cctalk wrote: > On Wed, 9 Oct 2024 at 02:25, Chuck Guzis via cctalk > wrote: > >> (still kicking, barely) > > Oh no! Glad to hear that you are, but something prompted that... Dare I ask? The whole thing could be summarized under "How I spent my summer vacation"

[cctalk] Re: Valuable floppy archiving: seeking current best practice

On 2024-10-09 4:08 a.m., Liam Proven via cctalk wrote: On Wed, 9 Oct 2024 at 04:37, ben via cctalk wrote: Dos also has no subdirectories. (?) So did the hundreds of other 8 bit operating systems. (??) The point here, was until hard disks with the PC became common you had the tiny mi

[cctalk] Re: Valuable floppy archiving: seeking current best practice

On Wed, 9 Oct 2024 at 04:37, ben via cctalk wrote: > Dos also has no subdirectories. (?) > So did the hundreds of other 8 bit operating > systems. (??) I used several which did. MGT G+DOS was my personal favourite. MSX-DOS is CP/M-binary-compatible but uses MS-DOS FAT disks, with directories,

[cctalk] Re: Valuable floppy archiving: seeking current best practice

On Wed, 9 Oct 2024 at 01:05, Fred Cisin via cctalk wrote: > > By refusing to create a "secondary" standard, he avoided dilution of > the standard Well, I mean yes, in a theoretical ideal world. https://xkcd.com/927/ But in fact, what he really did was make DOS FAT the standard. With versions fo

[cctalk] Re: Valuable floppy archiving: seeking current best practice

On Wed, 9 Oct 2024 at 02:25, Chuck Guzis via cctalk wrote: > (still kicking, barely) Oh no! Glad to hear that you are, but something prompted that... Dare I ask? -- Liam Proven ~ Profile: https://about.me/liamproven Email: lpro...@cix.co.uk ~ gMail/gTalk/FB: lpro...@gmail.com Twitter/LinkedIn

[cctalk] Re: Valuable floppy archiving: seeking current best practice

On 2024-10-08 6:16 p.m., Doug Jackson via cctalk wrote: And yet, here we are. When I built my first system in 1985 as a trainee technical officer, the *first* thing I did was copy all of the 8" floppies I could from a donor system onto my 5.25" DSHD drives (1.2MB - The biggest system in the neig

[cctalk] Re: Valuable floppy archiving: seeking current best practice

On Wed, 9 Oct 2024, Chuck Guzis via cctalk wrote: Floppy disk, wuzzat? :) Chuck (still kicking, barely) Keep kicking! It's a round piece of magtape material that wasn't long enough to make a tape. Some people even claim that if they ever get the bugs out, it might even replace punchcards!

[cctalk] Re: Valuable floppy archiving: seeking current best practice

Floppy disk, wuzzat? :) Chuck (still kicking, barely)

[cctalk] Re: Valuable floppy archiving: seeking current best practice

And yet, here we are. When I built my first system in 1985 as a trainee technical officer, the *first* thing I did was copy all of the 8" floppies I could from a donor system onto my 5.25" DSHD drives (1.2MB - The biggest system in the neighbourhood at the time), so I could return the borrowed 8"

[cctalk] Re: Valuable floppy archiving: seeking current best practice

I once had a brief discussion with Gary Kildall, in which I pleaded with him to create a "secondary" standard for 5.25". He replied, "THE CP/M standard is Single Sided Single Density." He felt that people, disunirregardless of which hardware they were using SHOULD be able to transfer back and fo

[cctalk] Re: Valuable floppy archiving: seeking current best practice

On 2024-10-08 5:00 p.m., Fred Cisin via cctalk wrote: On Tue, 8 Oct 2024, roger arrick via cctalk wrote: I figured he was mistaken, the old 'standard' is SSSD. Well, that's the CP/M "standard"., and, admittedly,  on my first look at the message, I, too, did a double take on "double density"

[cctalk] Re: Valuable floppy archiving: seeking current best practice

On Tue, 8 Oct 2024, roger arrick via cctalk wrote: I figured he was mistaken, the old 'standard' is SSSD. Well, that's the CP/M "standard"., and, admittedly, on my first look at the message, I, too, did a double take on "double density" I once had a brief discussion with Gary Kildall, in wh

[cctalk] Re: Valuable floppy archiving: seeking current best practice

I figured he was mistaken, the old 'standard' is SSSD. -- Roger Arrick -- Tyler, Texas, USA -- ro...@arrick.com -- From: Fred Cisin via cctalk Sent: Tuesday, October 8, 2024 5:24 PM To: roger arrick via cctalk Cc: Fred Cisin Subject: [cctalk] Re

[cctalk] Re: Valuable floppy archiving: seeking current best practice

On Tue, 8 Oct 2024, roger arrick via cctalk wrote: We need a lot more of this type of preservation. I've been doing my part and built an imagedisk machine with an Adaptec 1522CF controller which allows me to read single density. I've started specializing in systems with 8" drives. Imagedisk alon

[cctalk] Re: Valuable floppy archiving: seeking current best practice

Hello Tom. We need a lot more of this type of preservation. I've been doing my part and built an imagedisk machine with an Adaptec 1522CF controller which allows me to read single density. I've started specializing in systems with 8" drives. Imagedisk along with 22DISK to read and copy CP/M files

[cctalk] Re: Valuable floppy archiving: seeking current best practice

Sounds like a fun project and thank you for taking that on. The only guide I know of is this one , which is a good starting point. Other than the obvious cleaning tips. I think one suggestion often missed is to use your ears. You can really hear when a disk

[cctalk] Re: Data General MV/8000 emulator announcement

It was thus said that the Great Henry Bent via cctalk once stated: > On Mon, 7 Oct 2024 at 06:10, Maciej W. Rozycki via cctalk < > cctalk@classiccmp.org> wrote: > > > > > FWIW compiling 25 years old a piece of software is even tougher, unless > > you use contemporary tools in a contemporary envir

[cctalk] Re: Data General MV/8000 emulator announcement

On Mon, 7 Oct 2024, Henry Bent via cctalk wrote: > > FWIW compiling 25 years old a piece of software is even tougher, unless > > you use contemporary tools in a contemporary environment, so while the > > availability of the source code is surely always worth appreciating, the > > challenge to mak

[cctalk] Re: Data General MV/8000 emulator announcement

adventure games, most of what I find are easy to compile on Linux. NB if you clean up old a.out support and submit it for re-inclusion in Linux along with a serious offer to maintain it long-term, then it may well end up being accepted. You have the option to maintain it off-tree too. Not me. I

[cctalk] Re: Data General MV/8000 emulator announcement

On Mon, 7 Oct 2024 at 06:10, Maciej W. Rozycki via cctalk < cctalk@classiccmp.org> wrote: > > FWIW compiling 25 years old a piece of software is even tougher, unless > you use contemporary tools in a contemporary environment, so while the > availability of the source code is surely always worth a

[cctalk] Re: Data General MV/8000 emulator announcement

ly always worth appreciating, the challenge to make them run is not any smaller. NB if you clean up old a.out support and submit it for re-inclusion in Linux along with a serious offer to maintain it long-term, then it may well end up being accepted. You have the option to maintain it off-tree too. Maciej

[cctalk] Re: Data General MV/8000 emulator announcement

Liam Proven via cctalk [2024-10-07 11:10:56]: Have you tried to run any libc5-program lately? Or a.out binaries? Does WordPerfect 8 (released in 1998) count? If so, yes, I have: https://www.theregister.com/2022/07/20/wordperfect_for_unix_for_linux/ Instructions to install it yourself: https

[cctalk] Re: Data General MV/8000 emulator announcement

On Sat, 5 Oct 2024 at 17:38, Harald Arnesen via cctalk wrote: > Have you tried to run any libc5-program lately? Or a.out binaries? Does WordPerfect 8 (released in 1998) count? If so, yes, I have: https://www.theregister.com/2022/07/20/wordperfect_for_unix_for_linux/ Instructions to install it

[cctalk] Re: Data General MV/8000 emulator announcement (Bruce Ray)

On 2024-10-06 5:07 a.m., Evan Linwood via cctalk wrote: A Data General MV/8000 emulator beta release is now available from my DG legacy preservation web site: This is really something - thanks so much Bruce! Is there a recommended single board computer for the emulators, or hardware card

[cctalk] Re: Data General MV/8000 emulator announcement (Bruce Ray)

> A Data General MV/8000 emulator beta release is now available from my DG > legacy preservation web site: This is really something - thanks so much Bruce!

[cctalk] Re: Data General MV/8000 emulator announcement

> On Oct 5, 2024, at 11:35 AM, Bruce Ray via cctalk > wrote: > > > On 10/4/2024 2:04 PM, Paul Koning via cctalk wrote: >> Nice! >> >> So is this the current open-simh simulator, or a newer version? Will you >> update the one in open-simh? >> >> paul >> > > None of the SimH version

[cctalk] Re: Data General MV/8000 emulator announcement

>>> A Data General MV/8000 emulator beta release is now available from my DG >>> legacy preservation web site: >>> >>> www.NovasAreForever.org >> >> Very good. Will there be source code, for those of us not on x86 or ARM? >> > > This is a new emulator that uses parts of our commercial product stuf

[cctalk] Re: Data General MV/8000 emulator announcement

On Sat, 5 Oct 2024, Harald Arnesen via cctalk wrote: > > Linux maintains backwards ABI compatibility as far as both the OS kernel > > and the C library is concerned. If something breaks with an upgrade then > > please report a bug rather than complaining on a random mailing list (not > > that I

[cctalk] Re: Data General MV/8000 emulator announcement

Maciej W. Rozycki via cctalk [2024-10-05 16:51:13]: On Sat, 5 Oct 2024, Tom Hunter via cctalk wrote: As the software is binary only it won't be "Forever", but only until the next major change in Windows or Linux APIs which breaks binary compatibility. Linux maintains backwards ABI compati

[cctalk] Re: Data General MV/8000 emulator announcement

On 10/4/2024 8:53 PM, Cameron Kaiser via cctalk wrote: A Data General MV/8000 emulator beta release is now available from my DG legacy preservation web site: www.NovasAreForever.org Very good. Will there be source code, for those of us not on x86 or ARM? This is a new emulator that uses p

[cctalk] Re: Data General MV/8000 emulator announcement

On 10/4/2024 2:04 PM, Paul Koning via cctalk wrote: Nice! So is this the current open-simh simulator, or a newer version? Will you update the one in open-simh? paul None of the SimH versions currently has an MV emulator, so there is technically nothing to "update". This is a new

[cctalk] Re: Data General MV/8000 emulator announcement

On Sat, 5 Oct 2024, Tom Hunter via cctalk wrote: > As the software is binary only it won't be "Forever", but only until the > next major change in Windows or Linux APIs which breaks binary > compatibility. Linux maintains backwards ABI compatibility as far as both the OS kernel and the C libra

[cctalk] Re: Data General MV/8000 emulator announcement

not really, just run the emulator in a VM or even an x86 emulator with the old winblows/linux. --Carey > On 10/04/2024 11:42 PM CDT Tom Hunter via cctalk > wrote: > > > > > > ... > > Now "MVs Are Forever..." > > ... > > > > As the software is binary only it won't be "Forever", but only un

[cctalk] Re: Data General MV/8000 emulator announcement

> > ... > Now "MVs Are Forever..." > ... > As the software is binary only it won't be "Forever", but only until the next major change in Windows or Linux APIs which breaks binary compatibility.

[cctalk] Re: Data General MV/8000 emulator announcement

> A Data General MV/8000 emulator beta release is now available from my DG > legacy preservation web site: > > www.NovasAreForever.org Very good. Will there be source code, for those of us not on x86 or ARM? -- personal: http://www.cameronkaiser.com/ --

[cctalk] Re: Data General MV/8000 emulator announcement

Nice! So is this the current open-simh simulator, or a newer version? Will you update the one in open-simh? paul > On Oct 4, 2024, at 1:57 PM, Bruce Ray via cctalk > wrote: > > A Data General MV/8000 emulator beta release is now available from my DG > legacy preservation web site: >

[cctalk] Re: NTE is dead

On 10/1/24 12:31, Jon Elson via cctalk wrote: On 10/1/24 11:45, Tom Uban via cctalk wrote: I should note that my local store's primary business at this point is installing AV systems into peoples homes and repairing old stereo equipment, which means they are likely the largest consumer of

[cctalk] Re: Data General MV/8000 emulator announcement

Woohoo! Rich Alderson Sent from my iPhone > On Oct 4, 2024, at 11:00, Bruce Ray via cctalk wrote: > > A Data General MV/8000 emulator beta release is now available from my DG > legacy preservation web site: > > www.NovasAreForever.org > > > The MV/8000 emulator runs AOS/VS and AOS/VS II, pl

[cctalk] Re: Might be antique computer parts

On 10/4/24 00:07, Christian Corti via cctalk wrote: > On Wed, 2 Oct 2024, Tom Gardner wrote: >> Speaking of high profit margins: on the 1620, there was an extra cost >> option called "direct seek".  I don't know if involved a jumper cut or >> some actual circuitry (an adder, most likely).  We didn'

[cctalk] Re: Dysan Alignment and Performance Testers

> I mean, the drive was once good. I can't > see how a solid drive can get out of alignment without physical impact. It's a mechanical system, they're *all* old at this point. Some of them just go out of alignment from wear, heavy use, whatever. I've personally had TM-100s that came with systems

[cctalk] Re: Dysan Alignment and Performance Testers

On Thu, 3 Oct 2024, Chris Elmquist wrote: Just curious if you had a known "good" drive, a golden unit so to speak, that was well aligned with an authentic alignment diskette-- could you then use that drive to write plain old data diskettes that the downstream users would then align their drives t

[cctalk] Re: Might be antique computer parts

On Wed, 2 Oct 2024, Tom Gardner wrote: Speaking of high profit margins: on the 1620, there was an extra cost option called "direct seek". I don't know if involved a jumper cut or some actual circuitry (an adder, most likely). We didn't have that, and the result is that a seek from cylinder x

[cctalk] Re: Dysan Alignment and Performance Testers

On Thu, 3 Oct 2024, Jon Elson via cctalk wrote: Yes, and in a pinch I have done that.  What you want is to hack the format program so you can write just ONE track.  Bulk erase the floppy and then format just one track.  Put a scope on the analog read amp signal and see if it looks good.  Then,

[cctalk] Re: Dysan Alignment and Performance Testers

On 10/3/24 15:28, Chris Elmquist via cctalk wrote: Just curious if you had a known "good" drive, a golden unit so to speak, that was well aligned with an authentic alignment diskette-- could you then use that drive to write plain old data diskettes that the downstream users would then align their

[cctalk] Re: Dysan Alignment and Performance Testers

On Thu, 3 Oct 2024, dwight via cctalk wrote: A small laser interferomenter and a screw driver could be used, once one determined the center of the track by magnetic material and a microscope. Some what special equipment but not all that special, now days. Years ago, I went to a Seagate building

[cctalk] Re: Dysan Alignment and Performance Testers

Just curious if you had a known "good" drive, a golden unit so to speak, that was well aligned with an authentic alignment diskette-- could you then use that drive to write plain old data diskettes that the downstream users would then align their drives to? Could they simply maximize the read si

[cctalk] Re: Might be antique computer parts --1620

On 10/3/24 14:25, Chuck Guzis via cctalk wrote: On 10/3/24 10:51, Norman Jaffe via cctalk wrote: The IBM 360 single precision floating point has a range of 10**-79 to 10**75; double precision and extended precision has the same number of bits for the exponent. ...and most significanrly, norma

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