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101090 discussions

End users who pay insane amounts! Who wants to offer support for OLD systems on DOS?

by sales＠elecplus.com

I am working with a company in Canada that does manufacturing. Their software is old DOS, and the network is Novell. We have plenty of NIC cards that will work, but rather than pay $20 for mine with BNC, he is ordering his exact card from another company for $96 each! Their reasoning is that it takes more human hours to configure a different card than the price difference of the cards is worth. Also no support available any longer for these old systems and software, even though I sent him the exact drivers from the Novell page. Seems like some of you retired folks should offer your services to companies like these, get them up and going again. The kids they have in-house know NOTHING abt DOS or ISA! The purchasing agents can only go by exact PN that was in the old system, and they will pay through their teeth to keep them running. Cindy Croxton _____ No virus found in this message. Checked by AVG - www.avg.com Version: 2013.0.3343 / Virus Database: 3184/6361 - Release Date: 05/27/13

12 years, 10 months

Pre-unicode Swedish character set?

by jonas＠otter.se

On Sun, 26 May 2013 15:58:53 -0700, Chuck Guzis <cclist at sydex.com> wrote: > "We have our own Philistines who gives up on us if we are not vigilant."? > > Probably not a very good Google-translation... We have our own Philistines who will attack us if we are not vigilant. /Jonas

12 years, 10 months

Debugging Programs under RT-11

by jhfinedp3k＠compsys.to

Does anyone reading this list still write code to be run under RT-11? When a program has a bug, what do you use to find the problem? For debugging programs, SD: seems the most efficient way, especially when a Mapped Monitor is being used. Alternatively, ODT (VDT when Multi-terminal Support is included in the RT-11 monitor) can be LINKed into the program. Recently, I have been considering enhancements to the SD: variant, SDHX.SYS, which would reduce the Low Memory required along with adding an additional feature which is part of Ersatz-11. Specifically, SET PCLOG ON requests the Ersatz-11 emulator to save the addresses of the last 64 instructions that were executed. The the command SHOW PCLOG displays all 64 addresses at the users request. I would appreciate a response from anyone still writing and debugging programs that run under RT-11 and which debug package is being used along with the advantages and disadvantages that have been found. One big advantage of SDHX.SYS (actually all of the SD: variants) is that the user can request an automatic display of all of the register contents every time that a breakpoint occurs. The display occurs at the top of the screen each time the breakpoint takes place. The VT100 escape codes are then used to scroll down the screen and display each instruction in turn as it is about to be executed. One big disadvantage of SDHX.SYS is that it freezes the system completely, including the clock interrupts. The big advantage of VDT is that other jobs are able to continue running, but no other information is easily available when the program is stopped at a breakpoint. I would appreciate any response. Jerome Fine

12 years, 10 months

RESCUE - IBM Model 83 Card Sorter Available in Chicago - must

by j＠ckrubin.us

Two updates to my original post - First, the machine is a model 82, not 83. Pics here: https://plus.google.com/photos/102693653878217706883/albums/588251870193151… Second, because of the time constraints, the machine will go to the first person who can commit to actually picking it up, not just expressing an interest. This thing is big, heavy, and at risk. My only concern is getting it rescued, not the timestamp of the first responder. Sorry if this seems arbitrary but I don't want to either be stuck with the machine myself or see it go to the scrapper. Jack

12 years, 10 months

FDOS for Fluke 1720A

by geoffb＠vigilan.com

Does anyone have the O/S, Applications, and Diagnostice disks for this ancient IEEE 488 bus controller (Fluke 1720A)? It used a TI 9900 processor if I remember correctly. The operating system was called FDOS- a custom effort too I think, distributed on three 5 1/4" floppies. This is no longer available from anywhere or anyone, including Fluke. Thanks for any help and/or leads. Geoff

12 years, 10 months

Pre-unicode Swedish character set?

by jonas＠otter.se

On Sat, 25 May 2013 21:38:17 -0700, Chuck Guzis <cclist at sydex.com> wrote: > > List: > > I'm working with some old media that has Swedish text on it. (8" SS FM > disks with 4 sectors of 1024 bytes per track--no OS or file structure on > it). > > I can probably figure out the structural details that I need with the > exception of modern Unicode or UTF-8 characters corresponding to what's > on the disk. > > Here's a binary dump sample of such a record (LIST format): > >> >?000500 00 00 00 00 00 00 00 00-00 00 00 00 00 3C 44 65 <De >> >000510 74 20 76 61 72 20 66 FE-6F 72 62 61 6E 6E 65 6C t var f?orbannel >> >000520 73 65 6E 3E 0A 00 00 00-3C 73 6F 6D 20 64 72 65 sen>? <som dre >> >000530 76 20 6F 73 73 20 62 6F-72 74 20 66 72 FA 61 6E v oss bort fr?an >> >000540 20 53 61 6D 73 6F 6E 2E-3E 0A 00 00 00 00 00 00 Samson.>? > Note the characters FA and FE in this sample. > > Can anyone help with this thing? > > --Chuck FE 6F = ? (o with two dots above) FA 61 = ? (a with a ring above) The text, translated, goes: <It/that was the curse> <which drove us away from Samson> It or that depending on the context. /Jonas

12 years, 10 months

Help identifying (and finding docs for) Dataram core memory board

by derschjo＠gmail.com

Hi all -- I have a pair of core memory boards (which look to be 8kilobytes + parity) in my Imlac, made by Dataram in the early 1970s (based on datecodes in the machine, I'd say late 1973, early 1974). I can find no documentation on them. They're labeled Imlac on the main PCB (P/N 01-12880-1), but Dataram on the core plane, and interestingly, this Blog post on Dataram's site: http://www.dataram.com/blog/?p=163 Has a very grainy picture of the assembly -- see the photo here: http://www.dataram.com/blog/wp-content/uploads/2012/08/40yrs_7.png So I believe the whole assembly (PCB + core plane) was actually made by Dataram. I have some high-res scans up at: https://plus.google.com/u/0/photos/117997069161125071032/albums/58762337385… (See the last two images in the album.) I'd love to find schematics for this, as it's the only part of the system I do not have documentation for (and it's going to need some repair, as it's got some fairly serious moisture damage -- some of the ICs are weathered enough that they're unreadable). I'm going to shoot a mail off to Dataram as well, but I figure my odds there are pretty low. Thanks as always, Josh

12 years, 10 months

My <nothing for a while> on YouTube

by terry＠webweavers.co.nz

Hi, Some on this list might have been following my collection videos hence this message. Today while filming my "now fixed" Epson QX-10 (many thanks to Fred Jan Kraan for the replacement PSU), my camera had it's own failure. It appears terminal so I need to replace it. This may take a while as I'm not flush with cash at the moment. It's likely to be a few weeks before I can resume the project. The camera itself was somewhat vintage (2004) so the good news is the live sound and picture should be better once I've sorted the new kit. Just not sure when that will be though. Terry (Tez)

12 years, 10 months

3471 terminal

by jce＠seasip.demon.co.uk

> I'm not positive. I think I read somewhere that the protocols PC and 3270 > style keyboards use are different enough that it wouldn't be easy to make an > adaptor to connect a 3270 type keyboard to a PC. The protocol used by 122-key 3270 keyboards is pretty much the same as the AT / PS/2 one. In fact, it's more the other way round; the original 84-key AT keyboard is a cut-down version of the 6110344 122-key terminal keyboard. They use the same microcontroller and scancodes. The differences in the protocol are minor. If you just plug a terminal keyboard into a PS/2 keyboard port, it may work in DOS, it will work in Linux (using the 'atkbd.terminal=1' boot parameter) but won't work in Windows without a patch to the keyboard driver. It's also possible to make 6110344-type keyboards (if they're model F, not model M) completely compatible with the PC by substituting the microcontroller ROM from an 84-key AT keyboard. Or by burning a custom 8748: <http://www.seasip.info/VintagePC/ibm_6110344_cswap.html> There is also at least one converter, which will work with any variant of the terminal keyboard: <http://deskthority.net/workshop-f7/xt-at-ps2-terminal-to-usb-converter-with…> -- John Elliott

12 years, 10 months

seeking MS-DOS files from ftp.cdrom.com

by nigel.d.williams＠gmail.com

I am looking for files from the directory below that once found a home on ftp.cdrom.com, but so far searching the various compilation CDROMs (like Walnut etc) has drawn a blank. http://mirrorservice.org/sites/ftp.cdrom.com/pub/cdrom/cdroms/math/global.t… If anyone has the ISETL*.ZIP files [*] from the directory cdroms/math/msdos/discrete/ or even the whole directory, I would be interested to receive a copy please. If you have a mirror of that site it would be good to get it copied to mirrorservice.org so we have a public copy too. thanks, nigel. [*] I found the ISETL.ZIP file but would like the source-code too. ISETL is an implementation (interactive interpreter) for the SETL programming language.

12 years, 10 months

IBM 3174 architecture/internals

by BHuntsman＠mail2.cu-portland.edu

Hi there! Anyone on this list know much about the internals of the IBM 3174's, like what processor architecture they're based on, etc, and how the "Configuration Support" operating system for them was written/compiled? Thanks in advance for any info! -Ben

12 years, 10 months

news wire teleprinter - what protocol?

by n8uhn＠yahoo.com

Hi all, i have an old teleprinter with an rca logo on the front that is sitting on an extel interface box. the extel model is AN 11R 155 it was used with a upi or api wireline. the interface has a crystal selector switch and i have no idea what that is for or why it used xtal's on wireline. the printer is dot matrix but not 9 pin. What two wire interface and protocol did this use? i'm thinking eather 20 ma current loop or some odd subcarrier audio line. anyone know? Bill

12 years, 10 months

Decwriter III

by brian＠quarterbyte.com

I just picked up the Decwriter III that was up on the San Francisco bay area craigslist. Neat young guy had found it set out for the taking on a sidewalk in Berkeley a few years ago & had been using it as a typewriter. That's class. So now I'll break open the maintenance manual. Fans but no lights. There's a flowchart for that. It's missing the 1 and 4 numeric pad keycaps but I'll worry about that later. Otherwise it looks to be in great shape.

12 years, 10 months

LA180 / DecWriter I

by dm561＠torfree.net

----- Original Message ----- Date: Fri, 24 May 2013 13:02:37 -0400 From: Jonathan Gevaryahu <jgevaryahu at gmail.com> Speaking of dec teletypes/old printers, does anyone have one and the means to read out the contents of the firmware roms? The only one I have roms for right now is the LA50 (and only the later roms), and I'm trying to archive all the others (including/especially the rare ones) to make it easier for people to repair these printers/teletypes in the future. ------ Reply: Not particularly rare, but I'm scrapping some LA100RO printers; email me off-list if you want ROM images. mike

12 years, 10 months

Looking for Arraid AEM-1 SMD drive emulator operation info/commands

by bub7734＠yahoo.com

I'm looking for operation information on the Arraid AEM-1 SMD disk emulator. Does anyone have infomation on the operation of this device they can send me? I'm looking any information on the commands used to setup/configure the device through the serial port. TIA, -scott

12 years, 10 months

[cctalk] Re: LA180 / DecWriter I

by bub7734＠yahoo.com

> > > Actually I posted a very brief one here: > > > http://www.youtube.com/watch?v=Ew_HLX2AVC8 > > > > > > Once I have the cover on and the new ribbons etc I will do a better one. > > > >?? Nice!? Wow, that's some serious key echo lag.? Was that to a remote > system > > on HECnet, or something local?? (the caption wasn't specific) > > > >?????????????? -Dave > > > > -- > > Dave McGuire, AK4HZ > > New Kensington, PA > > Yes there is some lag. That is to SIMH running on my local PC. I don't know > the cause but I wonder if it is the serial interface code in SIMH. > > Regards > > Rob Is that a FreeBSD host running the simh? FreeBSD has some strange problems with its serial ports since they went from the sio(4) to uart(4) drivers.?? If you do have FreeBSD, let me know and I'll track down the fix I performed on my system.?? (I'm running serial teletypes to simh running hp2100 and TSB). If it's not FreeBSD, double-check your PC-side settings for bits, parity and stopbits. -scott

12 years, 10 months

My mystery console, revisited

by jon＠jonworld.com

Folks, A while back I posted about a mystery console a FOAF picked up at a DRMO auction. I wound up purchasing an extra one from him for my own use and to help identify it. The internal components are interesting. An 800x600 LCD display that takes XGA/VGA input. An AT-based keyboard. Some of the trackballs are serial mice, and I think the joystick is PC-style joystick. Two photo albums: http://imgur.com/a/tsxCP http://imgur.com/a/t1eS9 I was originally led to believe this kit was US Navy, but after some googling and guesswork I'm thinking its Air Force. The massive multi-pin connector on the back looks similar (but it isn't the same) as the connectors used to the ROLM 1602. Any ideas?

12 years, 10 months

Building extender boards -- finding protoboards w/edge connectors?

by derschjo＠gmail.com

Hey all-- I'm going to need to build an extender board or two for my Imlac in the next few weeks toaid in debugging. (Now that I have the power supplies up and running, there are a lot of stuck bits here and there in the CPU and it'd be really, really useful to have easy access to the chips for testing.) The cards have an 80-pinedge connector (40 pins per side) with a .125" spacing (same as S-100). I figured I'd look fora source of prototype boards & edge connectors with .125" spaced fingers on them and build a couple by hand, but I'm not having a great deal of luck finding the boards. Digi-Key comes close in that they actually have S-100 prototype boards listed, but of course theyhave none instock; this - http://www.digikey.com/product-detail/en/4610/V1111-ND/146808 - is close but has too few connectors. I suppose I could track down an S-100 prototyping / extender board and hack it down to the right size but I'd rather not destroy something. And since I'm only going to need one or two of these I don't see a lot of sense in having some fabricated. Any suggestions on where to find parts for this project? Thanks, Josh

12 years, 10 months

"Build a 32K RAM Board for the PDP-8/e" article published on Tronola.com

by steve＠tronola.com

Hi folks, I'm pleased to announce that we have just published a new vintage computing article on Tronola.com: "Build a 32K RAM Board for the PDP-8/e". You can read it here: http://www.tronola.com/html/ram_for_pdp-8e.html It includes a new look at interfacing memory to the Omnibus. -- Comments and corrections are welcome. Thanks, Steve Lafferty http://www.tronola.com

12 years, 10 months

LA180 / DecWriter I

by jgevaryahu＠gmail.com

Speaking of dec teletypes/old printers, does anyone have one and the means to read out the contents of the firmware roms? The only one I have roms for right now is the LA50 (and only the later roms), and I'm trying to archive all the others (including/especially the rare ones) to make it easier for people to repair these printers/teletypes in the future. -- Jonathan Gevaryahu jgevaryahu at gmail.com jgevaryahu at hotmail.com

12 years, 10 months

Altos 3068 Computer Available

by technobug＠comcast.net

A friend is closing down a business and in the process of cleaning out an attic we came across subject computer and monitor. If interested, email me off-list and I'll put you in contact. ->CRC

12 years, 10 months

3471 terminal

by BHuntsman＠mail2.cu-portland.edu

Hi All! Sorry for the noise, but I just landed my first real 3270-type terminal. It's a 3471, and has a pretty nice keyboard. It unfortunately did not come with the key. Anyone know how to get into the setup mode? Thanks much as always!! -Ben

12 years, 10 months

SMD Parts Wanted (CDC 9762)

by bpettitx＠comcast.net

I was contacted this week by a parts broker looking for SMD heads. These are the part numbers: 75010102; 75010103; 75010105. Unbelievable to me is that a bunch of SMD's are still in active service at a government facility. These drives have to be close to 40 years old! If anybody on the list has some of these heads and wants to sell, contact me and I will put you in touch with broker. He makes a living reselling these old parts, so I imagine that he does very well. And might not be overly generous. You will have to negotiate with him - I'm not going to be a middle man. Used parts may be of slight interest though I discouraged him from using them. It just blows my mind that some SMDs are still in service. I would love to know the story here. Billy Pettit bpettitx at comcast.net

12 years, 10 months

Next box with 1991 web page(s) password protected

by barythrin＠gmail.com

Also depends on the file system I don't own a next so don't know if its standard ufs file system to properly mount. I had that problem with irix machines and a lack of bootable media with support for ifs or whatever it was. I ended up editing the disk directly, finding the root: string and overwriting it with a known md5 hash. Not the worst time spent but certainly could save someone else from the frustration. ------Original Message------ From: Ryan K. Brooks Sender: cctalk-bounces at classiccmp.org To: cctalk at classiccmp.org ReplyTo: General Discussion: On-Topic and Off-Topic Posts Subject: Re: Next box with 1991 web page(s) password protected Sent: May 24, 2013 4:01 PM On 5/24/13 3:18 PM, Jim Stephens wrote: > Any idea how hard it is to hack the password on a Next box? > > http://www.bbc.co.uk/news/technology-22652675 Boot into single user and crack the unshadowed passwords. Or mount the disk elsewhere and do the same.

12 years, 10 months

Omnibus to USB - still some boards left!

by mcguire＠neurotica.com

On 05/17/2013 03:31 PM, Cory Smelosky wrote: >>>>>>> IDE interface, or better, a SCSI and/or ST-512-to-IDE interface ;o) >>>>>> >>>>>> For the PDP8? No way...! >>>>>> >>>>> >>>>> IDE on a PDP-8 would be...interesting to say the least. >>>> >>>> It's been done before.. >>> >>> People are strange. That says a lot coming from me, too... >> >> Well, RK05s, DF32s, and TU56s are pretty hard to come by. > > True. I'm just not too fond of IDE. ;) Oh, IDE blows dog, there's no question about that amongst people who have any technical clue whatsoever. But it IS easy to interface to...I've even done it (as have many others) with a microcontroller and a few dozen lines of code. Try doing that with (for example) SATA...one would be lucky to even get the physical layer talking. There is *nothing* ATA-like about SATA beyond the name. -Dave -- Dave McGuire, AK4HZ New Kensington, PA

12 years, 10 months

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