- test-drb@ccmp.vtda.org - classiccmp.org

by mythtech＠Mac.com

I kind of half asked this once before, but it was stuck in on another thread, so I think it was overlooked. Does anyone have info on how to use the I-Modem protocol for data transfers? (that's Eye-Modem). All I have been able to find is that it is a protocol designed for long distance, slow connections. So it sends a packet, and doesn't wait for a check. Rather it just sends all packets, and at the end, the recipient sends back a list of bad packets to be resent. The idea is, it will be faster when sent over a high latency connection. I *think* the protocol was created by John Friel. I base that off the little info I was able to find thru multiple different online searches (google being the most useful). What I am looking for is the specs needed to write an implimentation of it. I have a system that can only send files via i-modem, and I want to write a new program to talk to the server. Right now I use Procomm Plus 1.1b since it is the only application that I have found that supports imodem. I would like to write a custom front end to the system, so I can make access safer, easier, and more automated. If anyone has specs, or source code for imodem they can send me, it woud be very helpful. Thanks -chris <http://www.mythtech.net>

24 years, 7 months

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Stacking Apple ][ stuff

by acme_ent＠bellsouth.net

> From: Richard Erlacher <edick(a)idcomm.com> > The monitor seems to interact with the drives when the monitor is turned on. It > depends, I suppose, on the monitor, but I've got the IIe with the dual drive box Same setup I have, except mono monitor. > I'm told by more experienced Apple owners that it's a good idea to (a) ground > the disk drive boxes in the case of the old aluminum-cased Apple][ drives and > (b) put a sheet of grounded ferrous metal between the monitor and drives. I > don't know whether this helps, as I've simply stopped turning off the monitor > when I go away. Dick, thanks for this valuable information. I haven't lost any data yet but I think I'll take the easy way out and just set the disk drive unit off to the side. Glen 0/0

24 years, 7 months

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More Apple Pimpers

by SUPRDAVE＠aol.com

In a message dated 11/8/2001 2:28:02 AM Central Standard Time, optimus(a)canit.se writes: > Douglas Quebbeman skrev: > > >Macs up through at least the MacPlus have a single-chip > >implemntation of the IWM that they used for both the > >never-shipped Twiggy drives (never shipped in Macs) and > >the later 400k/800k 3.5" floppies. > > The "integrated Woz machine". =/ > According to NetBSD, my LC475 is equipped with an IWM, too. What a hardy > little design. > > I have heard of the SWIM (super....) chip. What does that come in, macs or the GS? clearing the HYPE about bioterrorism www.formatc.org/terrorism.htm

24 years, 7 months

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S100 stuff (was: Classic Gaming Collections)

by spedraja＠ono.com

>I offered a bunch of Cromemco (the folks who named the S-100 bus) >stuff here, 10 systems and probably about 100 cards, for next to nothing >or pretty reasonable prices depending on the system/card, and to my >surprise in the end I only got about 5 serious replies. And one of them wasn't me because I hadn't idea of this offer :-) (probably because I was off the list too). Never is too late to get one of these systems. Greetings Sergio

24 years, 7 months

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Cromemco landmarks

by ajp166＠bellatlantic.net

From: M H Stein <mhstein(a)usa.net> >And that in 1987 an XXU equipped system was almost twice as fast as a >VAX 11/780, which cost over four times as much as the largest Cromemco >system at the time. Sounds impressive...save for in 1987 the VAX11/780 was 9 years old and out of widespread use!! By 1987 the microVAX had been around for a while, the midrange VAX was 4x-8x faster than the 780 and easily 1/3 the size! Cromemco was pretty neat but first, fastest not hardly. Allison

24 years, 7 months

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OT: Dr Dobbs CD compression

by RCini＠congressfinancial.com

Hi: I downloaded a few very old programs from the 80's from an on-line (probably illegal) version of the DDJ CD (version 7). These programs are in the ARC format, but when I use standard de-ARCing tools, I get CRC errors and the like. Does anyone know if this CD has a specially tuned version of ARC on it? Rich ========================== Richard A. Cini, Jr. Congress Financial Corporation 1133 Avenue of the Americas 30th Floor New York, NY 10036 (212) 545-4402 (212) 840-6259 (facsimile)

24 years, 7 months

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head-positioners - (was Apple Floppy Drives (was: More Apple Pimpers))

by ajp166＠bellatlantic.net

From: Richard Erlacher <edick(a)idcomm.com> >I don't remember at all (go figure!) what options there were at the time, short >of the lead-screw that was used on 8" drives, for moving the heads. I've got a The options of the day were: type comment used on lead-screw -widely used SA800, 3.5" Voice coil -complex but very fast, persci spiral cam -slow and could be cranky SA400, others Band positioner - fast reliable as implemented not cheap. TEAC FD55 series The feature of the day for SA400 was low cost.

24 years, 7 months

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Cromemco landmarks

by ajp166＠bellatlantic.net

>-The first Z-80 micro Nope. >-The first micro with a Winchester HD Nope. >-The first micro color graphics system Yes and significant. >-The first micro implementation of I/O channel processors Nope, IMSAI had a 8080 in the FDC. >-The first micro to boot from ROM without front panel switches Nope, NS* and a slew of others. First was likely the Poly 88. >-The first micro with integrated floppy disks Not hardly. Nice claims, put dates and supporting evidence up. Cromemco is best known for The Dazzler color display, RF tight systems in solid boxes and generally good systems. Allison

24 years, 7 months

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Cromemco landmarks

by mhstein＠usa.net

Forgot a couple: -First micro to implement auto-baud detection -First micro based on Unix System V -First micro with high-level language microprogrammable co-processor But they did eventually also offer a PC clone... Anybody got one of these BTW, the C-20? mike

24 years, 7 months

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More Apple Pimpers

by clandrum＠monumental.com

Dick; Sorry about all the Apple brotherhood jumping on you with both feet. Having been beat up for so long, we're overly sensitive :-) Forgive us our CPU. We know not what we do. It wasn't clear to me in your original post that you were referring to the Apple II diskette drive, but I understand now. And yeah - the IWM (Incredible Woz Machine) diskette controller WAS fairly sensitive. I never owned an Apple II, but heard about them. Peace brother. Craig Landrum

24 years, 7 months

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Stacking Apple ][ stuff

by acme_ent＠bellsouth.net

Richard Erlacher wrote: > if you > were foolish enough to set the Apple up as shown in numerous installations, with > the monitor atop the 2 FDD's and that pair atop the Apple box, your disk > subsystem gave you what they (Apple Computer Co) figured you deserved. Proud new owner of Apple ][e (my first Apple product) wants to know: what's wrong with stacking the drive unit and display on top of the box? Glen 0/0

24 years, 7 months

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S100 stuff (was: Classic Gaming Collections)

by mhstein＠usa.net

--------------Original Message------------------- Date: Mon, 5 Nov 2001 17:08:34 -0600 From: "John R. Keys Jr." <jrkeys(a)concentric.net> Subject: Re: Classic Gaming Collections I for one have enlarged my gaming collection since it's getting harder to collect S100 and other older computer items. Every where I go now people tell me that they can get more on eBay than my offer. Some have called me back after trying to sell their items with no luck on eBay.<snip> ------------ Well John, don't say everywhere... I offered a bunch of Cromemco (the folks who named the S-100 bus) stuff here, 10 systems and probably about 100 cards, for next to nothing or pretty reasonable prices depending on the system/card, and to my surprise in the end I only got about 5 serious replies. I sure don't see a reply to my last email to you off-list... Granted, being in Toronto makes shipping of complete systems a bit expensive, but from my perspective it's getting harder to get rid of the stuff... mike

24 years, 7 months

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Stacking Apple ][ stuff

by SUPRDAVE＠aol.com

In a message dated 11/6/2001 3:23:39 PM Central Standard Time, foo(a)siconic.com writes: > On Mon, 5 Nov 2001, Richard Erlacher wrote: > > <PARAGRAPH CONTAINING FALSE AND MISLEADING STATEMENTS> > > The monitor seems to interact with the drives when the monitor is > > turned on. It depends, I suppose, on the monitor, but I've got the > > IIe with the dual drive box between it and the color monitor and from > > time to time, e.g. when I turn on the monitor while the computer has > > been powered up but the monitor has been powered down, e.g. when I go > > upstairs to get a sandwich or answer the doorbell, the drive runs up > > and the diskette is partially unreadable afterward. > </PARAGRAPH CONTAINING FALSE AND MISLEADING STATEMENTS> > > Didn't you just get finished telling us in the last 10 messages on this > topic that you threw out all your Apple ]'s??? > hmmm, back in 1984 some of the apple //e's at skool had two disk drives, and those of us who copied warez made sure to get those for quick disk copying. (ahh, memories of disk muncher 1.1 -----) The monitor //e sat right on top of the two disk ]['s and never a problem. Some of them also had the monitor /// that sat on top of the //e and drives and never a problem. I also used, and always wished for one of those //e 'professional' systems; the enhanced //e, duodisk and colour display for the //e. The one I used never had a problem either. I know there is some kind of problem relating to the duodisk and disks getting trashed (anyone know details?) but nothing ever related to the display. clearing the HYPE about bioterrorism www.formatc.org/terrorism.htm

24 years, 7 months

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Refilling Toner Carts (was RE: Rubber Restorer...)

by pete＠dunnington.u-net.com

On Nov 7, 18:06, Jim Davis wrote: > I've used it to clean print heads on epson printers. Works in most > cases. The complete rundown on 409 can be found at > http://www.biosci.ohio-state.edu/~jsmith/MSDS/FORMULA%20409%20CLEANER.htm > One possible problem, Sodium Hydroxide < .5% could be damaging and > corrosive > to metalic parts. About the only common material that sodium hydroxide will attack is aluminium, and then only when concentrated or exposure is reasonably long; it has no effect on copper, steel, etc. Unfortunately, the rundown you suggest only accounts for about 15% of the ingredients :-( -- Pete Peter Turnbull Network Manager University of York

24 years, 7 months

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More Apple Pimpers

by dhquebbeman＠theestopinalgroup.com

> Forgive us our CPU. We know not what we do. > > It wasn't clear to me in your original post that you were > referring to the Apple II diskette drive, but I understand > now. And yeah - the IWM (Incredible Woz Machine) diskette > controller WAS fairly sensitive. I never owned an Apple II, > but heard about them. Craig- Macs up through at least the MacPlus have a single-chip implemntation of the IWM that they used for both the never-shipped Twiggy drives (never shipped in Macs) and the later 400k/800k 3.5" floppies. Just FYI... Regards, -dq

24 years, 7 months

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Sun / CalComp Printer networking problems (was: Thick Ethernet/Sun networking problems)

by Arno_1983＠gmx.de

Hello Pete, at first: Is it okay to continue our mailing this way (directly mailing the messages, only CCing to Classiccmp.org? It's because I'm on the Digest and it has been arriving at about 4 P.M. local time the last few days, which is too late for me to stay in school and pick it up the same day (alas, don't have Internet at home yet). >Ah. It's quite likely there are some links on the card which have to be >set one way to use the 10baseT port, and the other way to use the >transceiver... Look for a set of 6 links. No, nothing on that board. There are only two 2pin jumpers, one for printing out the adapter's status page and one for resetting the NOVRAM contents to the factory defaults. I think I've already seen what you mean on other network devices (six or so 3-pin jumpers, the movable parts sometimes joined in a blue plastic tray). >>But no signs of overheating etc. on the PCB... OK, I admit that was only for VISIBLE SIGNS. The LM2577-T12 (switching voltage regulator in TO-220 package) next to the AUI port becomes TERRIBLY hot even after < 10 minutes of running the printer. I assume it's used to generate the voltage the Transceiver uses? But the power light (on the transceiver) is on as long as the printer is... And even worse...the DATA LED does no longer blink when there's traffic on the Ethernet... OK, I hope that helps Arno Kletzander Arno_1983(a)gmx.de -- GMX - Die Kommunikationsplattform im Internet. http://www.gmx.net

24 years, 7 months

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Zenith Data Systems Z-386 SX/20 Free in NJ

by acme_ent＠bellsouth.net

> From: Chris <mythtech(a)Mac.com> > If anyone wants it, I have a Zenith Data Systems Z-386 SX/20 available > I can't figure out how to change the setup, so it is useless to me (if I > can't at least get it to accept a 3.5" drive, I can't use it). Umm, why? Glen 0/0

24 years, 7 months

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Rubber Restorer...

by SUPRDAVE＠aol.com

In a message dated 11/7/2001 10:22:22 AM Central Standard Time, DAW(a)yalepress3.unipress.yale.edu writes: > Nah, even easier. Just take a look at a motorcycle, snowmobile, or > jetski, or whatever else uses a motorcycle sized battery. They (almost) all > have caps, to refille the levels. > Replacement motorcycle batteries come with the acid in a seperate > bottle, that you have to pour into the cells after you buy it. And there is > _always_some acid left over, once you put the proper amounts in... > > --- David A Woyciesjes > In the case of a scooter battery I bought last year, there was a box of acid to install, but there was none left over. why would you not want to add all that was provided? There was removable caps, but it was only for opening it up once to add acid, and then forever sealed. One thing I can say about those batteries, they sure don't last long for being so expensive! If you let them go dead just once, they never recover. clearing the HYPE about bioterrorism www.formatc.org/terrorism.htm

24 years, 7 months

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Sun / CalComp Printer networking problems (was: Thick Ethernet/Sun networking problems)

by Arno_1983＠gmx.de

On Nov 5, 08:33 GMT, Pete Turnbull wrote: >If the LINK LED stays off, I'd be inclned to believe the interface isn't >working; on all the devices I've seen it, the LINK LED is on if the network >is live. Seems odd if the DATA LED blinks when there's traffic, though. I >wonder what that LINK LED really is for? According to the Ethernet Hardware Manual (we finally got a copy from somebody who also still uses such stuff...YEAH!), the LINK LED will only illuminate if there is an active connection via the 10baseT network interface, NOT when using the AUI port. BTW, this is the same way my PC's network interface uses it. Yesterday, I went and borrowed a cross-over TP cable from the teacher who does all the network stuff at our school. Connected it between my PC and the printer, let 'em power up...and pinging and telnetting both worked! I verified (by connecting the PC to the Transceiver the printer used WITH the drop cable the printer used, then telnetting to one of the SUNs) that transceiver and drop cable are okay. So I think the fault is on the AUI port of the printer's network card. But no signs of overheating etc. on the PCB... OK, so far for now... Arno Kletzander Arno_1983(a)gmx.de -- GMX - Die Kommunikationsplattform im Internet. http://www.gmx.net

24 years, 7 months

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Apple Floppy Drives (was: More Apple Pimpers)

by ajp166＠bellatlantic.net

From: Eric J. Korpela <korpela(a)ssl.berkeley.edu> >I don't recall having as many problems with drives on other systems with the >exception of a Kaypro that would wipe most any disk over the course of a >couple hours. I only had access to the one Kaypro, so I don't know if the >problem was widespread. > Common problem on kaypros with 5.25drives with media in place on power down. Then again most machines did that. Some drives seemed less prone to do that in the same machine and those that lifted the heads were somewhat better too. Drive induced media failures, random writes on power up/down were/are common, SA400s would bite the hub (remember the rings?) and early two sided drives would clap the media between pinching heads that would sometimes twist and scar the disk. Allison

24 years, 7 months

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Clearly OT (but what the hell...) (was: food

by dhquebbeman＠theestopinalgroup.com

> DQ wrote: > > > This Son of Clan Keith is wondering which night of the week that > > Burn's Night falls on? > > January 25th. :-) Too bad, was hoping to make it a weekly afair... ;-) -q

24 years, 7 months

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Reconstructing "King's Quest"

by spectre＠stockholm.ptloma.edu

Now that I have my utility 486 up and running with a PC 5.25" drive, there are some projects to be commenced. One of them is to get King's Quest transferred over to the PCjr, since KQ1 only plays music through the PCjr. (Or so they say.) PC Gamer published the original KQ1 on one of their cover discs about a year ago, which I have, and was able to unpack it and it's sitting on the utility 486. The problem is that the total size of the files is ~400K, and I'm willing to bet that the PCjr's floppy does not support HD 5.25" (right now I'm about 100 miles away from it, or else I'd test it :-). If it does do HD floppies, that solves the entire problem. Assuming it does not, what is the layout of files on the various KQ floppies? Can someone list the files on their KQ1 disk(s)? -- ----------------------------- personal page: http://www.armory.com/~spectre/ -- Cameron Kaiser, Point Loma Nazarene University * ckaiser(a)stockholm.ptloma.edu -- Let us live! Let us love! Let us share our darkest secrets! ... you first. -

24 years, 7 months

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Clearly OT (but what the hell...) (was: food

by pete＠dunnington.u-net.com

On Nov 7, 8:08, Douglas Quebbeman wrote: > > Traditionally served [...] on special occasions like Burn's Night with a glass of > > whisky. > This Son of Clan Keith is wondering which night of the week that > Burn's Night falls on? It varies. Which night would you like? :-) -- Pete Peter Turnbull Network Manager University of York

24 years, 7 months

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Rubber Restorer...

by DAW＠yalepress3.unipress.yale.edu

! ! Nah, even easier. Just take a look at a motorcycle, ! ! snowmobile, or jetski, or whatever else uses a motorcycle ! ! sized battery. They (almost) all have caps, to refille the ! ! levels. ! ! Replacement motorcycle batteries come with the acid in ! ! a seperate bottle, that you have to pour into the cells ! ! after you buy it. And there is _always_some acid left over, ! ! once you put the proper amounts in... ! ! ! !--- David A Woyciesjes ! ! From: SUPRDAVE(a)aol.com [mailto:SUPRDAVE@aol.com] ! ! In the case of a scooter battery I bought last year, there ! was a box of acid to install, but there was none left over. ! why would you not want to add all that was provided? You want to follow the instructions. Mine said to fill to a certain level. If you put in too much, it could boil up and go boom. Manufacturers give a little extra, to account for air pressure differences (due to altitude and such), and to account for spillage too. ! There ! was removable caps, but it was only for opening it up once ! to add acid, and then forever sealed. Nothing a pair of pliers can't fix. ! One thing I can say ! about those batteries, they sure don't last long for being ! so expensive! If you let them go dead just once, they never ! recover. If they get drained too far, yes. But that (normally) doesn't happen very often. --- David A Woyciesjes --- C & IS Support Specialist --- Yale University Press --- mailto:david.woyciesjes@yale.edu --- (203) 432-0953 --- ICQ # - 905818

24 years, 7 months

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Rubber Restorer...

by DAW＠yalepress3.unipress.yale.edu

! > > But any kid knows that you can get some better acid out of the car ! > > battery. ! ! On Tue, 6 Nov 2001, Tony Duell wrote: ! > Alas many car batteries (at least in the UK) are 'sealed ! > for life' so ! > it's less easy to extract some sulphuric acid, at least not without ! > damaging the battery enough to get noticed :-(. ! ! In the US, MOST of the "sealed" batteries actually have ! access holes into ! each cell, that are hidden under a cap or tape. Nah, even easier. Just take a look at a motorcycle, snowmobile, or jetski, or whatever else uses a motorcycle sized battery. They (almost) all have caps, to refille the levels. Replacement motorcycle batteries come with the acid in a seperate bottle, that you have to pour into the cells after you buy it. And there is _always_some acid left over, once you put the proper amounts in... --- David A Woyciesjes --- C & IS Support Specialist --- Yale University Press --- mailto:david.woyciesjes@yale.edu --- (203) 432-0953 --- ICQ # - 905818

24 years, 7 months

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Clearly OT (but what the hell...) (was: food

by dhquebbeman＠theestopinalgroup.com

> Minced sheep's liver, lungs, and heart (the "pluck"), mixed with oatmeal, > suet, and spices, sewn into the sheep's stomach bag and boiled. I grew up > in Edinburgh with the stuff and I hate it, but many consider it a delicacy. > Traditionally served with boiled mashed potatoes ("tatties") and turnip > ("neeps") and on special occasions like Burn's Night with a glass of > whisky. Search for "Macsween" on the web -- theirs are widely rated the > best. This Son of Clan Keith is wondering which night of the week that Burn's Night falls on? ;-) -dq

24 years, 7 months

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Refilling Toner Carts (was RE: Rubber Restorer...)

by zmerch＠30below.com

Rumor has it that UberTechnoid(a)home.com may have mentioned these words: >Having been inside thousands of laser, led, and Inkjet printers in my >time, I'd have to agree with HP. As much as I hate "me too" posts... "Me Too!" >Third-party recycled toner carts can cause an ungodly mess a tech is gonna >have to clean up. Inkjet refill kits can have the same effect (but >gooeyer). Or worse. There are some inkjet printers out there that have an "overflow" valve & tiny reservoir that will take up excess ink - if you refill these cartridges, once that overflow reservoir fills you can actually ruin your printer! Granted, there are some inkjet printers that IMHO should have never seen the light of day... but I'll not get into that. :-) >For those on the list, you know what you are doing and know what you are >getting into, but PLEASE tell your customers/clients to buy original toner >carts or carts from a known maker (such as Xerox tonor carts for hp >printers). I did *just that.* The local officemax was out of HP carts for our 4000N, so I purchased a Xerox. Works as good as the original... > Shopping for price is ok, but refilled carts from Joedy >Rottenkrotch are recipe for disaster. ;-) I dunno if I'd have put it *quite that way* but you are indeed correct. Laterz, Roger "Merch" Merchberger

24 years, 7 months

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Sun / CalComp Printer networking problems (was: Thick Ethernet/Sun networking problems)

by pete＠dunnington.u-net.com

On Nov 7, 7:54, Arno Kletzander wrote: > According to the Ethernet Hardware Manual (we finally got a copy from > somebody who also still uses such stuff...YEAH!), the LINK LED will only illuminate > if there is an active connection via the 10baseT network interface, NOT when > using the AUI port. BTW, this is the same way my PC's network interface uses > it. > > Yesterday, I went and borrowed a cross-over TP cable from the teacher who > does all the network stuff at our school. Connected it between my PC and the > printer, let 'em power up...and pinging and telnetting both worked! Ah. It's quite likely there are some links on the card which have to be set one way to use the 10baseT port, and the other way to use the transceiver... Look for a set of 6 links. -- Pete Peter Turnbull Network Manager University of York

24 years, 7 months

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Available For Trade - Tandon 8" Floppy Drive - Model TM848E

by dec.parts＠verizon.net

Have available ... Tandon 8" Floppy Drive - Model TM848E http://members.bellatlantic.net/~vze2mj6m/tandon/1s.jpg http://members.bellatlantic.net/~vze2mj6m/tandon/2s.jpg We removed this from the machine it was in, so we know it has never been handled roughly. We haven't tested it though, just hadn't gotten around to it. Since we know most of you hobbyist/collector types don't want to pay much for anything, and since http://www.cadigital.com/flopdriv.htm prices them at $149.00 and up, if anybody wants it, suggest something of value you'd have to trade for it.

24 years, 7 months

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VAXserver question

by cmcmanis＠mcmanis.com

You have a cartridge in the drive? The LED on the front shows access? The bus is correctly terminated? These things cause problems. A third issue is sometimes the holder for the CD "pinches" it and it can't spin, make sure its free to turn. Show DEV shows the drive as an RRD42? Its not conflicting in address with another device? --Chuck At 12:26 AM 11/6/01 -0500, One Without Reason wrote: >Hi. I am trying to get four VAXserver 3100's working. However, when I >try to boot from my RRD42 (it is in 512 mode), it gives me an error >DEVOFFLINE. I have tried more than one RRD42 with more than one >machine. I need help ASAP. Thanks. > >Peace... Sridhar

24 years, 7 months

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Apple Floppy Drives (was: More Apple Pimpers)

by ajp166＠bellatlantic.net

RE: apple II I've worked around and with them. Never serious 6502 programming but used apps on them like UCSD pascal. The disks worked ok compared to my NS* {NS* disk controllers are reliable} and yes they were sensitive only to the extent that an unshielded 34pins cable didn't like to be near some monitors. The tubes in metal cases were ok but some of the plastic cased ones tended to radiate noise that the cables seemed to find. It's beauty was the basic logic was simple as were the drive hardware and that helped it work better than most. Some of the better floppy systems of the time where neither simple nor cheap. RE: trs80 >TRS-80 drives? I have a beautiful Model 1 setup. But talk about trashing disks! And slow! Slow was running the z80 at 1.7mhznot the disks fault though the step rates were really slow even for sa400s!.. See above and yep the tube was plastic cased and worse hot chassis! Grounding was poor on the drives, their internal regulators were at limits current wise plus the data separator in the EI was very poor. Not to worry though, as most tended to crash from the sloppy and noisy console to EI interface. >What about the single board CP/M machines? I have them too. The disk drives on the >Osborne were, based on extensive experience, the least reliable ever made. If one >drive could read what another had written, it was a gift from God. And with the double density upgrade, it was much worse. That was the drives and I always thought the SA400 series to be really poor even though my NS* had three of them. TM100s were not much better! Also there was some really bad media based on some of the media failures I've had over the years. The SA400 was the slowest, most unreliable floppy of the time, it made everything it was attached to look bad. The worst part is many vendors of early 5.25 drives had their own version of worst at one point or another. >And even later, how about the "ingenious" DEC double disk-munching drives, that couldn't >format disks? The drives could but the controller didn't, therein lies the difference. The RX02 was old when the 1771 FDC was young so comments based on post 1980 tech are not reflective of then(pre 1980s). I'd call the RX01/2 the 1970s version of an IDE floppy as it was smart and executed commands that were higher level than even the 1771, mostly due to the microcoded controller. The RX01/2 were reliable enough though the RX50 was pretty poor. In my book after the RX02 the next useable floppy from DEC was the RX33 (teac FD-55GFR). The commie controllers were a good idea that suffered from poor implementation. they were fast in themselves but the serial link was limited. Allison

24 years, 7 months

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Goodwill Computer Store Austin, TX

by jss＠subatomix.com

I met up with Bill Bradford today in Austin. One of our activities was to visit the Goodwill computer store there (you know, the one with the museum in the back). Well, it turns out that the general public is no longer allowed to see the museum pieces (either that or the museum pieces are no longer there), and it's all due to some freaks who broke in and stole -- guess what -- A FREAKING *NINTENDO* *SUPER* *FAMICOM*! -- Jeffrey S. Sharp jss(a)subatomix.com

24 years, 7 months

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ISIS & CP/M for MDS 225 series3

by ajp166＠bellatlantic.net

Standard CP/M on 8" is the right bios but.... The right media as the MDS controller was SD/D2... single density(normal ibm 128 byte sectors) and D2 was double density by m2fm and incompatable with everything except Intel. So you need another working intel box user. Allison -----Original Message----- From: Doug Taylor <techno(a)dsuper.net> To: classiccmp(a)classiccmp.org <classiccmp(a)classiccmp.org> Date: Tuesday, November 06, 2001 11:42 AM Subject: ISIS & CP/M for MDS 225 series3 >Hello folks... >I've been trying to get an operating system for my MDS 225 series 3 on 8" >disks. >I've read that it uses ISIS (Intel System Implementation Supervisor) >and that it can also run CP/M (GENERIC) according to Joe's web site >http://www.intellistar.net/~rigdonj/mds.htm >However, I've tried to email joe at >rigdonj(a)intellistar.net >But the mail bounces as undelivered. >Any ideas? > > >Doug Taylor (Techno) >Sysop of the "Dead On Arrival BBS" >Telnet://doabbs.dynip.com >http://www-mtl.look.ca/~techno >techno(a)dsuper.net > >

24 years, 7 months

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About those PDP-11 /83 's

by Thomas.J.Lynch＠usa.xerox.com

Last week I wrote that I had a coule PDP-11 /83 's some people respoded with interests of various sorts Here's what I can see that is inside the boxes: system ID FRONT SIDE BACK SIDE 10597 RA-82 in drawer H3100 unit with ~ 4 ft tall in the six bays-three are empty 4 ethernet-like connectors& TK 70 tape drive 8 DB-25 connectors + others module with 4 HDD-type buttons H7660C (PSU?) module with 2 HDD-type buttons: 874-D 10595 RA-82 in drawer H3100 unit with ~4 ft tall in the six bays-three are empty 4 ethernet-like connectors& TK 70 tape drive 8 DB-25 connectors + others module with 4 HDD-type buttons H7660C (PSU?) module with 2 HDD-type buttons: 874-D 10596 RA-82 in drawer H3100 unit with ~4 ft tall in the six bays-three are empty 4 ethernet-like connectors& TK 70 tape drive 8 DB-25 connectors + others module with 4 HDD-type buttons H7660C (PSU?) module with 2 HDD-type buttons: 874-D 80-22593-01 module xxxxx RA-81 RA-60 AA ~ 4 ft tall RA-82 RA-60 CA RA-60 H7660A (PSU?) H7660C (PSU?) 874-D SA482 #1 3each HDD-like modules 3each H7660C (PSU?) modules over with lighted push buttons; 881A module 5 ft. tall 0ne empty bay Unidentifiable module SA482 #2 3each HDD-like modules 3each H7660C (PSU?) modules over with lighted push buttons; 881A module 5 ft. tall 0ne empty bay Unidentifiable module Any information as to what these are, etc. would be appreciated. We'll be moving them today with a bunch of other stuff [deadlines, deadlines, you know], and probably not find them again until week end. I'm hoping we can move them out next week. Thanks for your interest. tom tomsir(a)rochester.rr.com

24 years, 7 months

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Toronto Area Collectors?

by KenzieM＠sympatico.ca

Seems a few out of town collectors will be in Toronto this weekend. Any interest in a mini-swap meet? Any good sources for old machines? Collector of Vintage Computers (www.ncf.ca/~ba600)

24 years, 7 months

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classiccmp-digest V1 #768

by clandrum＠monumental.com

Megan; Please - oh please - round up all your female friends and get them on this list. One of the best firmware programmers I ever knew was a lady named Pat Daniels that worked with me in the late 70's and early 80's. We developed Z80 firmware for custom multiubus boards and were often forced to debug the hardware for the designers using Biomation and HP logic analyzers. I know she would claim that was the most fun she ever had hacking code. Craig Landrum > Date: Sun, 4 Nov 2001 23:37:11 -0500 (EST) > From: Megan <mbg(a)world.std.com> > Subject: Re: value of classic DEC machines? > > >>Speaking of you guys, just curious: is this an all-male hobby? No > >>members of the fairer sex here? > > >There's Allison for one. I don't think we raise our little girls to > > I know I haven't posted for awhile... but I didn't think I'd be > forgotten that quickly... :-) > > Megan Gentry > Former RT-11 Developer > > +--------------------------------+-------------------------------------+ > | Megan Gentry, EMT/B, PP-ASEL | Internet (work): gentry!zk3.dec.com | > | Unix Support Engineering Group | (home): mbg!world.std.com | > | Compaq Computer Corporation | addresses need '@' in place of '!' | > | 110 Spitbrook Rd. ZK03-2/T43 | URL: http://world.std.com/~mbg/ | > | Nashua, NH 03062 | "pdp-11 programmer - some assembler | > | (603) 884 1055 | required." - mbg KB1FCA | > +--------------------------------+-------------------------------------+ >

24 years, 7 months

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classiccmp-digest V1 #768

by clandrum＠monumental.com

Dick; Without getting too far into religious issues, its been my experience that Macs have consistently supplied a good computing environment for me since 1984. My company uses both Macs and the latest Dell and Compaq PCs, and I lost count of the times our Wintel people have replaced hard disks and reloaded Windows. I have yet to see any of our Macs fail, and we have owned one of virtually every model. I own a G4 with a Cinema display that I wouldn't trade for any Wintel box made. What has impressed me is the level of integration between hardware and software - natural since they own them both and can ensure a high level of compatibility. This lends itself quite well to adding new peripherals and other devices and have them working quickly and without a hitch. I recognize that Apple lost the OS wars. The reasons are numerous, but one of the main ones stems from the corporate mentality of the early 80's when you could never get fired for buying IBM. Hence, truckloads of IBM PC's with Lotus 123 appeared on managers desks. Marketing and sales liked Apple because their desktop publishing capabilities were far and away better than Windows toward the late 80's, but these people were in the minority, and as Windows came along, there became less and less reason to go Apple, from management's point of view. And once Apple was forced from corporate desktops, they were relegated to a niche market, where they will remain. I am productive on my Mac. You are productive on your PC. I'm sure both are terrific matches for their respective users. And as all of us on this list can attest, there have been numerous computers and OS's that, while they may be terrific machines, fell by the wayside for one reason or the other. And you never know. Linux may just be eating Microsoft's lunch by 2005 and those Wintel boxes may start to look nostalgic :-) Craig Landrum Chief Technical Officer Mindwrap, Inc > Date: Sun, 4 Nov 2001 20:07:04 -0700 > From: "Richard Erlacher" <edick(a)idcomm.com> > Subject: Re: hard-sector 5 1/4 disk > > Well, I'd have to say that, since the performance and reliability haven't > improved since back in the '80's, the Apple was not designed for serious use, > but rather for use by those who didn't value and trust computers enough to make > the investment in one that warranted the value and trust. Oddly enough, it was > less costly to use a much more reliable system with a larger installed software > based, targeted at small business, yet, thanks to the Apple myths, people paid > 15%-25% more with the idea that it would be easier to use, which, sadly, it > wasn't. > > More below. > > Dick >

24 years, 7 months

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Way OT: Haggis (was RE: Clearly OT (but what the hell...) (was: food

by mythtech＠Mac.com

>Poutine is a Quebecois interpretation of french fries with cheese curds and >gravy. For those from the New Jersey area, it is basically Disco Fries (which you can get at any self respecting diner... the Bendix being the preferable one now that Twin [ch]Oaks has been torn down) -chris <http://www.mythtech.net>

24 years, 7 months

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OS9 or Flex09 on 8" disk needed

by jhellige＠earthlink.net

Does anyone have OS9 or Flex09, preferably for the SWTPc, on 8" floppy or a means of making one on 8" floppy? I've finally gotten a nice 8" cabinet with a pair of Siemens' 800-2 drives as well as a bare pair of Shugart 851's and would like to give them a whirl with the DMF2 floppy controller installed in my S/09. This was it's last configuration, running OS9 with the Microware support ROMs on the MP-09A. I could even provide the 8" disks if someone was willing to make them. Thanks Jeff -- Home of the TRS-80 Model 2000 FAQ File http://www.cchaven.com http://www.geocities.com/siliconvalley/lakes/6757

24 years, 7 months

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Micro PDP 11/73

by lemay＠cs.umn.edu

Well, I decided to take the day off, so what should happen but that I get email from work teling me that someone has left a PDP 8/75 in a desk with floppy drives on the loading dock (which is very very close to my office...). So, I come in, and of course its not the pdp 8/a i'm expecting, no... Its a Micro PDP 11/73 with a couple of other rack mounted things that i'm guessing are modems or some such (non DEC). Anyways, I take the computer and rack mounting parts, but now i'm full of questions. For one thing, whats the proper way to get to the cards? It looks like i may have to take apart the back end of this thing, which contains about 9 male DB25 connectors and a 2 digit LED numerical display... So far, I can tell I have the KDJ11-B CPU board, which is quad height unlike the A version which the web tells me was dual height. I can see there are cards in the upper 4 slots of the bus, and that there may be a total of 8 slots. Anyways, i'm afraid i'm not knowledgeable on this 'modern' DEC stuff, so any help, like sugestions on the proper way to open the back of this thing, would be appreciated. -Lawrence LeMay

24 years, 7 months

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CPU design at the gate level

by ajp166＠bellatlantic.net

Tony, There is a trick... half the calcs result in the same thing. remove the mirrored states and your more than halfway there. Allison -----Original Message----- From: Tony Duell <ard(a)p850ug1.demon.co.uk> To: classiccmp(a)classiccmp.org <classiccmp(a)classiccmp.org> Date: Tuesday, November 06, 2001 7:00 PM Subject: Re: CPU design at the gate level >> >> Tony, >> >> Faster as in is sub 150ns are fairly common and cheap. Whats > >It's still slower than F-TTL I think. > >> problemtic is that the ALU must do about 8-16 different operations >> so that would be at least a 512kN part or larger. > >Well, a 16 bit ALU in a single EPROM (or a pair of 8-bit wide ones) is a >non-starter. You'd need 32 data inputs (2 16 bit words), say 4 or 5 >function select inputs, carry in. That's about 38 inputs, so 38 address >lines to the EPROM, or 256 gigawords. Ouch!. > >8 bits is possible, but still pushing it (around 4M bytes of EPROM -- 16 >data inputs, 5 function selects, carry in, so 22 address lines). > >4 bits is trivial (8 data inputs, 5 selects, Cin, so 14 total, or 32K >nybbles). > >If you're going to cascade EPROMs for more bits, even if you use lookahead >carry, then the time taken for the ALU to calculate a result is around >twice the access time of the EPROMs (once to calcuate P,G, and a possibly >incorrect result, once to correct the result for the Cin signal produced >as a result of P and G from lower ALUs). > >You might be able to save some time by having multiple EPROMs (or the 2 >halfs of the output word of a single EPROM) calculate the 2 possible >results (Cin =0 and Cin =1). Then select between them using (distributed) >multiplexers debending on the actually state of Cin, which should be faster >then another EPROM access. > >-tony >

24 years, 7 months

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Clearly OT (but what the hell...) (was: food

by ajp166＠bellatlantic.net

Tatties and neeps, love them and grew up with them. Never did haggis and would never as I hate lung. Allison From: Pete Turnbull <pete(a)dunnington.u-net.com> To: classiccmp(a)classiccmp.org <classiccmp(a)classiccmp.org> Date: Tuesday, November 06, 2001 6:14 PM Subject: Re: Clearly OT (but what the hell...) (was: food >On Nov 6, 14:47, Roger Merchberger wrote: > >> (Oh, and as an aside, what's Haggis?) > >Minced sheep's liver, lungs, and heart (the "pluck"), mixed with oatmeal, >suet, and spices, sewn into the sheep's stomach bag and boiled. I grew up >in Edinburgh with the stuff and I hate it, but many consider it a delicacy. > Traditionally served with boiled mashed potatoes ("tatties") and turnip >("neeps") and on special occasions like Burn's Night with a glass of >whisky. Search for "Macsween" on the web -- theirs are widely rated the >best. > >I've only once seen it served for breakfast, thank goodness. I put that on >a par with the person I saw eat two raw onions with a cup of coffee for >breakfast. > >-- >Pete Peter Turnbull > Network Manager > University of York

24 years, 7 months

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Rubber Restorer...

by pete＠dunnington.u-net.com

On Nov 6, 17:32, One Without Reason wrote: > > What a kid's chemistry kit needs is ethyl hexaperchlorate. And Caesium > metal stored in kerosene. Fun fun fun fun fun. I've got hydrazine, sodium in paraffin, potassium in paraffin, iodine, bromine, a few other things. Will that do? :-) No caesium, though :-( -- Pete Peter Turnbull Network Manager University of York

24 years, 7 months

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Clearly OT (but what the hell...) (was: food

by pete＠dunnington.u-net.com

On Nov 6, 17:02, Sean 'Captain Napalm' Conner wrote: > I don't know what Poutine is, but I do know what Haggis is. Tripe [4]. > Or in other words, cow stomache. Sorry, I'll pass. Not quite. Haggis is sheep; tripe is intestine. I do, however, completely concur with your enthusiasm for the stuff :-) -- Pete Peter Turnbull Network Manager University of York

24 years, 7 months

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VAXserver question

by vance＠ikickass.org

Hi. I am trying to get four VAXserver 3100's working. However, when I try to boot from my RRD42 (it is in 512 mode), it gives me an error DEVOFFLINE. I have tried more than one RRD42 with more than one machine. I need help ASAP. Thanks. Peace... Sridhar

24 years, 7 months

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OT: Chemistry Sets (was RE: Rubber Restorer...)

by pete＠dunnington.u-net.com

On Nov 6, 7:44, Feldman, Robert wrote: > do shudder a bit to think of some of things we did, though, like playing > with big globs of mercury in our hands. I still have a jar containing about 1/4 pint of the stuff :-) > BTW, water glass is Sodium Silicate, not phenothalien. And carbon tet, not > benzene, was dry cleaning fluid. Yup. But it's spelt "phenolphthalein". > As kids, my brothers and I used carbon tet > in killing jars to gas butterflys for our collection. It is banned in most > places now, and benzene use is severely restricted, as it too is a strong > carcinogen and bad for your internal organs. It's been banned here for 25 years or so. -- Pete Peter Turnbull Network Manager University of York

24 years, 7 months

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Solbourne (fwd)

by optimus＠canit.se

I got this on another list. Could be of interest here, too.

24 years, 7 months

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Clearly OT (but what the hell...) (was: food

by ajp166＠bellatlantic.net

Yes, and pastichio is reall good too.. especially with stuffed grapeleaves and spinach pie. Here in Framingham we are very fortunate to have excellent dining from the non-franchise food groups. Italian, Brazialian, and Greek are among favorites as in Hunan and Korean. Allison From: Pete Turnbull <pete(a)dunnington.u-net.com> To: classiccmp(a)classiccmp.org <classiccmp(a)classiccmp.org> Date: Tuesday, November 06, 2001 4:23 PM Subject: Re: Clearly OT (but what the hell...) (was: food >On Nov 6, 14:47, Roger Merchberger wrote: > >> and 1 greek restaurant, which is extremely good but don't serve enough >> (IMHO) choices in the way of greek food... They have gyros, kalamari, and >a >> few other dishes & the rest - american. (damn good american, but american >> nonetheless...) >> :-( >> I'm continually begging them for new greek stuff - you can get a burger >> anywhere, after all - and I was *finally* greeted with something new this >> Saturday (don't recall the name, some type of lamb & beef dish with a >> baked pancake-like topping - started with an "M") and it was fantastic! > >Moussaka? Layers of minced[1] lamb and fried aubergines[2] with eggs, >greek yoghurt[3], and baked. Mmm, very nice! I had some last night. > >[1] you'd probably call that ground lamb >[2] eggplant >[3] thick yoghurt made from sheep's milk > >-- >Pete Peter Turnbull > Network Manager > University of York >

24 years, 7 months

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Clearly OT (but what the hell...) (was: food

by pete＠dunnington.u-net.com

On Nov 6, 14:47, Roger Merchberger wrote: > (Oh, and as an aside, what's Haggis?) Minced sheep's liver, lungs, and heart (the "pluck"), mixed with oatmeal, suet, and spices, sewn into the sheep's stomach bag and boiled. I grew up in Edinburgh with the stuff and I hate it, but many consider it a delicacy. Traditionally served with boiled mashed potatoes ("tatties") and turnip ("neeps") and on special occasions like Burn's Night with a glass of whisky. Search for "Macsween" on the web -- theirs are widely rated the best. I've only once seen it served for breakfast, thank goodness. I put that on a par with the person I saw eat two raw onions with a cup of coffee for breakfast. -- Pete Peter Turnbull Network Manager University of York

24 years, 7 months

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hard-sector 5 1/4 disk

by mhstein＠usa.net

This time I think I can say without making an a%% of myself that Commodore also did that from day one; most if not all their drives had CPU's to handle the IEEE interface ... m ----------------Original Message-------------------- Date: Wed, 31 Oct 2001 18:21:49 -0500 From: Jeff Hellige <jhellige(a)earthlink.net> Subject: Re: hard-sector 5 1/4 disk >The Atari 8-bit drives all had them that I can recall, Percom, Indus, >Trak, etc. The Indus GT was one nice drive and they made it for other machines than just the Atari line. It was interesting to sit there and listen to it while watching the track readout change. I've never torn one apart to check but I'm told that they used a Z80 in the drive to control everything which would be interesting since that'd make the chip in the drive as powerful as the main CPU of the machine it was attached to. Jeff

24 years, 7 months

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