RE: Calcomp 1039 plotter docs?

Hi All, the 1039 is an interesting plotter I have got a 1038/1039 as well: There are two big PCBs inside - one is for the low level functions (essentally driving the servos and drawing lines using TTL implemented Bresenham) the second one contains the computer (68xx based) which is handling

Re: Multi-platform distribution format (Was: Backups [was

tony duell wrote: > > > > For both the DEC RX01 and the DEC RX02 8" floppy drives, > > while it might have been possible that DEC engineers were unable > > to initially figure out how to allow users to perform an LLF (Low > > Level Format) on the 8" floppy drives, it seems certain that after >

Re: Sheet Metal Fabrication Options?

I don't know the size and curvature of the area to be treated but I would maybe try just doing like the auto body guys do and sand down with some fine grit sandpaper, maybe treat with a corrosion inhibitor, degrease and then repaint. Seems like hand sanding would have less overhead in equipment;

Re: The desk has arrived - WAS: Somewhat OT: Freighting Items

Huh, interesting ... I bet that thing is built like an old Steelcase! Looks heavy :O Best, Sean On Mon, Sep 21, 2015 at 5:24 PM, Ali wrote: > Well, > > In case anyone is still interested the desk arrived on Friday. The seller > did a very good job of packing it and it

Re: Query for dec teleprinter roms

Thanks. I will see what I can do. B Bill Degnan twitter: billdeg vintagecomputer.net On Sep 21, 2015 11:02 PM, "Jonathan Gevaryahu" wrote: > There isn't a complete archive of these ROMs in existence currently. Pete > Turnbull's site does contain an archive, but it isn't

Re: Query for dec teleprinter roms

I have an LA120. It's working fine, and I haven't looked inside yet. I also have one of the little Correspondents (I forget the LA number), waiting for me to get around to rebuilding a ribbon for it. I'm not sure if I have a convenient way to dump the 23xx ROMs yet. I don't have my Data-I/O

would like to find blue dg et head looking terminal to go with small eclipse

would like to find blue dg et head looking terminal to go with small eclipse this thing is a beauty and has a tiny side by side reel to reel deck just would be nice to have a terminal to display with it in the museum. drop us a line offlinst... ed sharpe archivist for smecc

Re: PDP-11 Overlays

On 2015-09-21 23:16, Jerome H. Fine wrote: >Paul Koning wrote: On Sep 21, 2015, at 3:14 PM, Jerome H. Fine wrote: Recently, there have been a number of references to using overlays on the PDP-11. There have also been strong suggestions that overlays were structured differently under the 3

Re: PDP-11 Overlays

On 2015-09-22 02:09, Jerome H. Fine wrote: >Paul Koning wrote: On Sep 21, 2015, at 5:16 PM, Jerome H. Fine wrote: ... Another important aspect is that RT-11 has a few extra instructions in the overlay handler which determines if the overlay is already in memory. ...

RE: Multi-platform distribution format (Was: Backups [was

> HOWEVER, while the PDP-11 is still unable to perform an > LLF on an RX50 when an RQDX3 is present, it is possible > to perform an LLF on a floppy in an RX33. Does that still > seem compatible with your explanation? Yes, that confused me too. The RQDX3 is clearly capable of LLFing a floppy. So

Re: vintage datacenter furniture

On Mon, Sep 21, 2015 at 5:54 PM, Benjamin Huntsman wrote: > This is sort-of off topic, but not entirely... > I've seen a fair amount of furniture like in the following picture: > > http://dooki.com/supercomputers/ibm/ibm.s390g4.gif > > It looks well-made,

Reading a masked ROM the hard way (was Re: Wanted: ROM images from HP 9895, 82901/82902, and other HP-IB disk drives)

Someone was kind enough to mail me the masked ROM out of his HP 9895 floppy drive. I've read it and mailed it back. It's an MK36000 series 24-pin 8KB masked ROM, with the same pinout as the Motorola MC68764 EPROM, so reading it with an EPROM programmer set for the Motorola part should work fine.

Re: Multi-platform distribution format (Was: Backups [was

On 2015-09-21 22:27, Paul Koning wrote: On Sep 21, 2015, at 3:49 PM, Jerome H. Fine wrote: Johnny Billquist wrote: On 2015-09-21 17:03, Paul Koning wrote: And it would certainly be possible to write a driver that can handle both controllers; it would start by

Re: DEC Alpha 3000 Model 600

I have Moasic on my Alpha 2100 running VMS On Mon, Sep 21, 2015 at 12:36 AM, Sean Caron wrote: > I am pretty sure I remember a Netscape build for VMS long ago ... but I > can't say for sure. I may have just been running on a UNIX machine with > remote X to the VAX ... I don't

Backups [was Re: Is tape dead?]

> From: tony duell > In some cases it should be possible to write a machine code program > that executes on 2 processors with wildly different instruciton sets. I have this bit set that I was told (or something, the memory is _very_ vague) that early versions of the KL-10 had this

Re: Calcomp 1039 plotter docs?

Spot on. it HAS the 2114 ram chips. now to find replacements.. strange enough there are 12 positions for ram chips and two of them are left unpopulated: pos 1 and pos 7. On 20-09-15 20:02, tony duell wrote: Hi All, we have a 1039 in our space with the user guide, but without any service

RE: Multi-platform distribution format (Was: Backups [was

> > > Epson PX8? > > That's a commercial or industrial system? Did it run an EDM setup, > turret lathe or vacuforming machine? Anyone keep their AR, AP, GL, > payroll and inventory on one? I doubt that one could run a PBX. I guess it depends on what you call a 'commercial' system. I

Re: Backups [was Re: Is tape dead?]

On Mon, Sep 21, 2015 at 09:15:13AM -0400, Noel Chiappa wrote: > > From: tony duell > > > In some cases it should be possible to write a machine code program > > that executes on 2 processors with wildly different instruciton sets. > > I have this bit set that I was told (or

Re: Calcomp 1039 plotter docs?

Sounds good. Docs are much appriciated. Our printer has three boards inside, one processor, one pen driver and i forgot what the thirdt was. Next time i will take photo's of that card as well. simon On 21-09-15 08:45, Erik Baigar wrote: Hi All, the 1039 is an interesting plotter I have

Some amount of DG goodness

I decided to raid the front panel of my S/200 to get a switch cover and a switch for the S/130; what can I say - I got antsy to see if the S/130 worked ;) When taking the S/200 front panel apart I found it really wasn't in great shape as it had appeared to be from the outside. A large number of

Structured Fortran - was Re: Self modifying code, lambda calculus

On 2015-09-21 5:58 PM, Paul Koning wrote: On Sep 21, 2015, at 5:33 PM, Chuck Guzis wrote: On 09/21/2015 01:37 PM, Dave G4UGM wrote: I wrote X.25 software in Fortran:-(. We had some machine specific routines to allow the Fortran code to wait for a packet to arrive. There

Re: Multi-platform distribution format (Was: Backups [was

>Johnny Billquist wrote: In any case, adding and correcting the extra code was quite easy. The challenge was to also add support for a user buffer being above the 1/4 MB boundary in a PDP-11 with all 4 MB of memory when a Mapped RT-11 Monitor was used since the controller supported only 18-bit

Re: Multi-platform distribution format (Was: Backups [was

On 2015-09-21 19:20, Paul Koning wrote: On Sep 21, 2015, at 12:47 PM, Johnny Billquist wrote: ... I suppose you could on a Pro, since that had its own particularly disgusting junk controller. But I haven't seen RX50 formatting there. My impression was that they came

Re: Self modifying code, lambda calculus - Re: ENIAC programming

On 2015-09-21 21:18, Fred Cisin wrote: [...] a first encounter with the notion, at least for me, involved FORTRAN, not any language. [...] I've always thought of FORTRAN as a language, so I am clearly missing something here. What? Probably a misspeak. But FORTRAN is more than simply a

Re: PDP-11 Overlays

On 2015-09-21 21:41, Paul Koning wrote: On Sep 21, 2015, at 3:14 PM, Jerome H. Fine wrote: Recently, there have been a number of references to using overlays on the PDP-11. There have also been strong suggestions that overlays were structured differently under the 3

Re: Backups [was Re: Is tape dead?]

On 2015-09-21 23:32, David Brownlee wrote: On 21 September 2015 at 01:55, Jerome H. Fine wrote: Fred Cisin wrote: On Sun, 20 Sep 2015, Jon Elson wrote: Well, one would assume this is also OS specific. I would guess it would be incredibly hard to make a "disk" virus

Re: Multi-platform distribution format (Was: Backups [was

On 2015-09-22 03:09, Jerome H. Fine wrote: >Johnny Billquist wrote: In any case, adding and correcting the extra code was quite easy. The challenge was to also add support for a user buffer being above the 1/4 MB boundary in a PDP-11 with all 4 MB of memory when a Mapped RT-11 Monitor was

Re: Self modifying code, lambda calculus - Re: ENIAC programming

On 09/21/2015 06:23 PM, Mouse wrote: Wirth & Co. started the project in FORTRAN, but gave up, particularly when it was realized that implementing data structures and recursion in FORTRAN was going to be a bit of a task. I think that if I wanted to build a Pascal compiler in FORTRAN I would

RE: The desk has arrived - WAS: Somewhat OT: Freighting Items

> Thanks for sharing the pictures, and I'm glad that the freighting > worked out! Freight shipment is a bit weird at first, until you get > used to it. Mark, I am excited to get it home! The seller sent me the keys separately and unfortunately they just arrived today. So it may be a week or two

Re: The desk has arrived - WAS: Somewhat OT: Freighting Items

> On Sep 21, 2015, at 18:55, Ali wrote: > I am excited to get it home! The seller sent me the keys separately and > unfortunately they just arrived today. So it may be a week or two until I > can open it up and see how the inside did I would have picked the locks, but

Re: Self modifying code, lambda calculus - Re: ENIAC programming

On 9/21/15 2:33 PM, Chuck Guzis wrote: PASCAL was first implemented in FORTRAN. Was there something before http://bitsavers.org/pdf/eth/pascal/ETH_Pascal_Listing_Nov72.pdf ? looks like 6600 assembler to me

RE: vintage datacenter furniture

> This is sort-of off topic, but not entirely... > I've seen a fair amount of furniture like in the following picture: > > http://dooki.com/supercomputers/ibm/ibm.s390g4.gif > > It looks well-made, industrial, and vintage (sort of). Anyone know who > makes such things? > > Did IBM have a go-to

Re: Self modifying code, lambda calculus - Re: ENIAC programming

On 09/21/2015 02:58 PM, Paul Koning wrote: PASCAL was first implemented in FORTRAN. Really? I find it hard to imagine that Wirth would use Fortran for a compiler. Never mind his background in structured languages -- writing a compiler in Fortran is just much harder. Not as hard as writing

vintage datacenter furniture

This is sort-of off topic, but not entirely... I've seen a fair amount of furniture like in the following picture: http://dooki.com/supercomputers/ibm/ibm.s390g4.gif It looks well-made, industrial, and vintage (sort of). Anyone know who makes such things? Did IBM have a go-to desk

Re: Multi-platform distribution format (Was: Backups [was

>tony duell wrote: If it was possible to perform a LLF using the same RX50 drive on the Rainbow, what was the reason why an LLF could not also be It is. Remember the RX50 is just a drive, it does not include any of the controller electronics. performed on a PDP-11? There seems to be a

Re: Reading a masked ROM the hard way (was Re: Wanted: ROM images from HP 9895, 82901/82902, and other HP-IB disk drives)

Of course, that's not the hardest way. You could also do this: http://www.pmonta.com/calculators/hp-35/ I have a few chips that I'll need to do that to, where the ROM is embedded and can't be read out electrically. Unfortunately the chips are in a much finer geometry than the HP-35 chips, so

Re: Self modifying code, lambda calculus - Re: ENIAC programming

> On Sep 21, 2015, at 5:33 PM, Chuck Guzis wrote: > > On 09/21/2015 01:37 PM, Dave G4UGM wrote: > >> I wrote X.25 software in Fortran:-(. We had some machine specific >> routines to allow the Fortran code to wait for a packet to arrive. >> There was also a huge vector of

Re: Calcomp 1039 plotter docs?

On 09/21/2015 01:45 AM, Erik Baigar wrote: Hi All, the 1039 is an interesting plotter I have got a 1038/1039 as well: There are two big PCBs inside - one is for the low level functions (essentally driving the servos and drawing lines using TTL implemented Bresenham) the second one contains

Re: DG S/130 front panel switches?

I will contact you off-list. JRJ On 9/19/2015 11:46 AM, Jay West wrote: > So does anyone have a trashed/dead front panel for a Data General S/130 > (S/200 would also work) that can be a donor? All I need are two > switches/paddles/Covers, but my S/200 front panel is perfect so I don't want > to

Re: Calcomp 1039 plotter docs?

> Jon Elson hat am 21. September 2015 um 17:47 > geschrieben: > Hmm, that sounds like my 1076C. One board had a 68000 that > ran the plotter servos, the other was the "plot manager" > that had a big RAM buffer and sorted the plot vectors for > optimum speed. I think it

Re: Multi-platform distribution format (Was: Backups [was

> On Sep 21, 2015, at 12:28 PM, Jay Jaeger wrote: > > On 9/21/2015 4:30 AM, Johnny Billquist wrote: > >> On 2015-09-21 02:11, Jerome H. Fine wrote: Chuck Guzis wrote: >>> Note that the RX50 was the same. DEC finally changed >>> their marketing policy with the RX33

RE: Multi-platform distribution format (Was: Backups [was

> > Not CP/M admittedly, but small contemporary > Burroughs machines certainly used cassettes, both > for program and data storage. I wrote several > fairly complex diskless accounting systems using > four cassette drives, one or two card readers and > a line printer (in addition to the console >

Re: Multi-platform distribution format (Was: Backups [was

Not CP/M admittedly, but small contemporary Burroughs machines certainly used cassettes, both for program and data storage. I wrote several fairly complex diskless accounting systems using four cassette drives, one or two card readers and a line printer (in addition to the console printer). Why

Re: IBM 026 - Decision Data 8010 card punch on Ebay in

Wow. Thanks for sharing. What a beautiful looking machine. I hope one of us gets it. Marc = Date: Mon, 21 Sep 2015 18:36:20 +0200 From: Mattis Lind Not really a 026 but maybe contemporary with the 029:

RE: Multi-platform distribution format (Was: Backups [was

> Why not; not much different conceptually after all > from early systems using open-reel mag tape, or > even punch(ed) cards. On Mon, 21 Sep 2015, tony duell wrote: I feel there are 2 distinct types of cassette system from the user perspective. The first is the sort used on 1980s home

Sheet Metal Fabrication Options?

I was wondering if anyone has or knows anyone who has experience with low volume sheet metal enclosure fabrication? I am looking for a fabricator to build small (think game cartridge enclosure sizes) clamshell units (or similar). I thought before I start cold calling folks, I'd see if

Re: Sheet Metal Fabrication Options?

There are a lot of folks in VMS on the metal fabrication and I just happen to know someone that has opened a small volume fabrication company on Cape Cod. Do I have your ok to forward? Sue > On Sep 21, 2015, at 1:51 PM, Jim Brain wrote: > > I was wondering if anyone has

Re: Sheet Metal Fabrication Options?

On 9/21/2015 12:54 PM, Sue Skonetski wrote: There are a lot of folks in VMS on the metal fabrication and I just happen to know someone that has opened a small volume fabrication company on Cape Cod. Do I have your ok to forward? Yep, please do. Jim

Re: Multi-platform distribution format (Was: Backups [was

On 09/21/2015 10:22 AM, tony duell wrote: Have you ever read the technical manual for the QX10? It appears there were 2 keyboards sold for it. One had Valdocs-specific keys, the other (which seems more common over here, not that the QX10 is a common machine) doesn't and was used for a more

Re: Multi-platform distribution format (Was: Backups [was

>Rod Smallwood wrote: >On 21/09/2015 10:30, Johnny Billquist wrote: >On 2015-09-21 02:11, Jerome H. Fine wrote: You bring up a VERY notable lack of support by DEC of that situation!! For both the DEC RX01 and the DEC RX02 8" floppy drives, while it might have been

Re: IBM 026 - Decision Data 8010 card punch on Ebay in Germany

Not really a 026 but maybe contemporary with the 029: http://www.ebay.de/itm/Historische-EDV-Lochkartenstanzer-Card-Punch-von-1973-2000-Lochkarten-/371439456530?hash=item567b845112 Not mine.

RE: IBM 026 - Decision Data 8010 card punch on Ebay in Germany

That is simply gorgeous.

Re: Self modifying code, lambda calculus - Re: ENIAC programming

On 09/21/2015 02:24 AM, Johnny Billquist wrote: CHAIN is in no way similar to overlays. COMMONs, if available, is a nice way to preserve some data between different programs running. CHAIN is (like someone said), about the same as a LOAD followed by a RUN. So, how is this different than

RE: Multi-platform distribution format (Was: Backups [was

> If it was possible to perform a LLF using the same RX50 drive on > the Rainbow, what was the reason why an LLF could not also be It is. Remember the RX50 is just a drive, it does not include any of the controller electronics. > performed on a PDP-11? There seems to be a number of

Re: Multi-platform distribution format (Was: Backups [was

> On Sep 21, 2015, at 12:47 PM, Johnny Billquist wrote: > ... >> I suppose you could on a Pro, since that had its own particularly disgusting >> junk controller. But I haven't seen RX50 formatting there. My impression >> was that they came factory formatted, with the

Re: Backups [was Re: Is tape dead?]

On 2015-09-21 15:15, Noel Chiappa wrote: > From: tony duell > In some cases it should be possible to write a machine code program > that executes on 2 processors with wildly different instruciton sets. I have this bit set that I was told (or something, the memory is _very_

RE: Calcomp 1039 plotter docs?

> Spot on. it HAS the 2114 ram chips. now to find replacements.. The slight delay after power-on before giving the error indication suggested a memory test to me... Of course it might not be 2114 problems, but I have replaced so many of those ICs over the years in all sorts of devices that I

Re: Backups [was Re: Is tape dead?]

> On Sep 20, 2015, at 8:55 PM, Jerome H. Fine wrote: > >> ... > > I used the above example when I created a CD which had files to be used > with RT-11 in addition to being a normal CD under Windows. I found that > for a normal CD under Windows, sectors 0 to 15 (hard

RE: Multi-platform distribution format (Was: Backups [was

> > and, of course, as a third type, Exatron Stringy-Floppy > computer based, but NOT entirely usable. Along with its inferior friend the Sinclair Microdrive which was entirely NOT useable. -tony

Re: Multi-platform distribution format (Was: Backups [was

On 9/21/2015 11:34 AM, Paul Koning wrote: > For RX50? On standard PDP11s, those used an MSCP controller, which means the > controller would have to do it. Did it? The only MSCP controller I remember > that did formatting was the UDA50. > > I suppose you could on a Pro, since that had its

Re: Multi-platform distribution format (Was: Backups [was

> On Sep 21, 2015, at 3:49 PM, Jerome H. Fine wrote: > > >Johnny Billquist wrote: > >> >On 2015-09-21 17:03, Paul Koning wrote: >> >>> And it would certainly be possible to write a driver that can handle both >>> controllers; it would start by determining which

RE: Self modifying code, lambda calculus - Re: ENIAC programming

> -Original Message- > From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Chuck > Guzis > Sent: 21 September 2015 20:29 > To: General Discussion: On-Topic and Off-Topic Posts > > Subject: Re: Self modifying code, lambda calculus - Re: ENIAC

Re: Self modifying code, lambda calculus - Re: ENIAC programming

On 09/21/2015 12:18 PM, Fred Cisin wrote: A REAL programmer can write a FORTRAN program in any language. Conversely, several languages were initially written in FORTRAN--it was among the most portable in the early days. Remember those programs that started out with a statement something

Re: PDP-11 Overlays

> On Sep 21, 2015, at 3:14 PM, Jerome H. Fine wrote: > > Recently, there have been a number of references to using > overlays on the PDP-11. There have also been strong suggestions > that overlays were structured differently under the 3 operating > systems: RSTS/E,

Re: Multi-platform distribution format (Was: Backups [was

Holm Tiffe wrote: [..] ..forgot to mention one interesting thing: The E60 is that PDP11 clone on which Alexei Paschitnow wrote the original of Tetris... Regards, Holm -- Technik Service u. Handel Tiffe, www.tsht.de, Holm Tiffe, Freiberger Straße 42, 09600 Oberschöna, USt-Id:

Re: IBM 026 - Decision Data 8010 card punch on Ebay in Germany

> On Sep 21, 2015, at 2:37 PM, jwsmobile wrote: > > > > On 9/21/2015 10:14 AM, Dave G4UGM wrote: >> Pretty sure that’s later than an 029, but really nice. > I used 029's in 1971, and they had been around for at least a year or two at > the school. The auction say 1973, which

Re: Self modifying code, lambda calculus - Re: ENIAC programming

[...] a first encounter with the notion, at least for me, involved FORTRAN, not any language. [...] I've always thought of FORTRAN as a language, so I am clearly missing something here. What? Probably a misspeak. But FORTRAN is more than simply a language--it's a way of life. :) A REAL

Re: Multi-platform distribution format (Was: Backups [was

Ah, but when people with Valdocs wanted to change to another word-processing system, as was likely to happen often in business, they would contact, Chuck, me, or any of our colleagues in the disk format conversion field. The CP/M users might not have as frequent a conversion need, and/or

Re: IBM 026 - Decision Data 8010 card punch on Ebay in

> On Sep 21, 2015, at 10:52 , Marc Verdiell wrote: > > Wow. Thanks for sharing. What a beautiful looking machine. I hope one of us > gets it. It looks like it is in pristine condition! -- Mark J. Blair, NF6X http://www.nf6x.net/

Overlay - one answer

And we have a winner of the overlay competition . From the CBASIC manual The CHAINstatement can load two types of programs: an overlay program generated by the linker, or a directly executable file. As I used CBASIC this must be where I got it from Rod Smallwood

Re: Self modifying code, lambda calculus - Re: ENIAC programming

On 09/21/2015 11:49 AM, Mouse wrote: [...] a first encounter with the notion, at least for me, involved FORTRAN, not any language. [...] I've always thought of FORTRAN as a language, so I am clearly missing something here. What? Probably a misspeak. But FORTRAN is more than simply a

PDP-11 Overlays

Recently, there have been a number of references to using overlays on the PDP-11. There have also been strong suggestions that overlays were structured differently under the 3 operating systems: RSTS/E, RSX-11 and RT-11. Obviously, I understand how RT-11 overlays were set up, but for those

Re: IBM 026 - Decision Data 8010 card punch on Ebay in Germany

On 9/21/2015 10:14 AM, Dave G4UGM wrote: Pretty sure that’s later than an 029, but really nice. I used 029's in 1971, and they had been around for at least a year or two at the school. The auction say 1973, which is probably right. Not really a 026 but maybe contemporary with the 029:

Re: Multi-platform distribution format (Was: Backups [was

and, of course, as a third type, Exatron Stringy-Floppy computer based, but NOT entirely usable. The department chair at one of the colleges attempted to convert an entire TRS80 based student computer lab over to stringy floppy. He was the same one who later had a lab full of TRS80 model 3s

Query for dec teleprinter roms

Does anyone have an LA36, LA120 or LAS12, LA34, LA100, or LA210 somewhere which they could dump the ROMs from? Notes: The LA36 uses several proms for its discrete cpu, and 2 character set roms which I believe have an 'odd' pinout. The LA120, one of the roms on the '2 rom version' is an 8k

Re: Some amount of DG goodness

Hello, you have a very nice lot of DG stuff, indeed! I have a Nova 3 sitting on the garage, waiting for proper repair. However it's missing all the front panel switch levers, so I would need to rebuild them, not having had the luck of finding some at reasonable price. I have some picture of the

Re: Query for dec teleprinter roms

What are you going to do with these? Is there a ROM archive for DEC printer ROMs? On Mon, Sep 21, 2015 at 3:14 PM, Jonathan Gevaryahu wrote: > Does anyone have an LA36, LA120 or LAS12, LA34, LA100, or LA210 somewhere > which they could dump the ROMs from? > > Notes: > The

Re: Some amount of DG goodness

My own DG rack is taking up a lot of space in a very tiny room, but it came along with a nice little PDP-11/03 in a short rack that I wanted. I bought them from the stepson of their original owner (who passed away in 2008 if I recall correctly), and they came with a cool story. So even though I

RE: Some amount of DG goodness

Shadoo wrote However it's missing all the front panel switch levers, so I would need to rebuild them, not having had the luck of finding some at reasonable price. As a safety net, I was going to send one to another listmember that has a 3d scanner/printer and see if they can

Re: Query for dec teleprinter roms

On 9/21/2015 2:19 PM, william degnan wrote: > What are you going to do with these? Is there a ROM archive for DEC > printer ROMs? > Well, I expect bitsavers would happily host them in .../bits ;)

Re: Multi-platform distribution format (Was: Backups [was

>Jay Jaeger wrote: On 9/21/2015 11:34 AM, Paul Koning wrote: For RX50? On standard PDP11s, those used an MSCP controller, which means the controller would have to do it. Did it? The only MSCP controller I remember that did formatting was the UDA50. I suppose you could on a Pro, since

Re: Backups [was Re: Is tape dead?]

On 21 September 2015 at 01:55, Jerome H. Fine wrote: >>Fred Cisin wrote: > >> On Sun, 20 Sep 2015, Jon Elson wrote: >> >>> Well, one would assume this is also OS specific. I would guess it would >>> be incredibly hard to make a "disk" virus that would work on greatly >>>

Re: The desk has arrived - WAS: Somewhat OT: Freighting Items

> On Sep 21, 2015, at 14:24 , Ali wrote: > > Well, > > In case anyone is still interested the desk arrived on Friday. The seller > did a very good job of packing it and it arrived in tact. Thanks to everyone > for their input, tips, and bits of wisdom. BTW: If anyone is

Re: Some amount of DG goodness

I have a Nova 3. Maybe if I can find the time, I can sit down with a caliper and a CAD program, and create a solid model of a switch lever? Then I could put it up for sale at ShapeWays for convenience, as well as sharing the model in a GitHub repository. Also, that heap of DG stuff in the

Re: Some amount of DG goodness

Well, I have (what I think is) an entire Nova 3, also sitting in a garage (mine, of course), that we could discuss. Where are you located? (Mine is in Madison, WI USA) JRJ On 9/21/2015 2:35 PM, shad wrote: > Hello, > you have a very nice lot of DG stuff, indeed! > > I have a Nova 3

RE: Some amount of DG goodness

Mark wrote... Also, that heap of DG stuff in the pictures looks really lovely! Thank you... Those pictures don't even show a quarter of the DG gear floating around here. But honestly-unfortunately, it's simply WAY too much. Soon as I get one or two good working Eclipses and one or two

Re: Self modifying code, lambda calculus - Re: ENIAC programming

On 09/21/2015 01:37 PM, Dave G4UGM wrote: I wrote X.25 software in Fortran:-(. We had some machine specific routines to allow the Fortran code to wait for a packet to arrive. There was also a huge vector of strings with matching integer arrays that allowed them to be chained together, and to

Re: Sheet Metal Fabrication Options?

> From: Jay West > A couple items in my holdings have rust ... The only good solution I > could see is having the existing metalwork sandblasted and then > repainted. I've not checked, but I suspect that's "non-trivial-$". > Thoughts? Iff you have access to an air compressor,

Re: Self modifying code, lambda calculus - Re: ENIAC programming

On 2015-09-20 19:46, Chuck Guzis wrote: On 09/20/2015 09:00 AM, Peter Coghlan wrote: CHAIN is roughly equivelant to LOAD followed by RUN. Unlike LOAD, CHAIN can be issued from a program so it can be used for a kind of overlay where one program is run and then replaced by another program when