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

by lbickley＠bickleywest.com

A friend and business associate recently asked me about how I dealt with corrosion issues in vintage computer restorations. After I created this writeup for for him, I realized it may also prove helpful to someone on this list. Here 'tis: Very bad corrosion from alkaline battery spillage: ------------------------------------------------- Pour 30% Hydrochloric Acid directly on the affected area of the board. When the foaming (along with "clouds" of vapor) stop, immediately rinse the board in plenty of cold water. Follow with a rinsing of distilled water (to eliminate any calcium in the tap waster). Dry in the open air or with mild air pressure (I use the later to speed drying). When originally told of this process, I was skeptical (even though sourced >from a professional in the board repair business). When I first tried it, I was amazed at the quantity of foaming (and clouds of vapor) from the acid treatment. But amazingly, just as he said, the acid is not on the board long enough to dissolve traces, components, etc. It works, just as he said it would! You can get 30% Hydrochloric Acid at most hardware stores. Its "common name" is "Muriatic Acid". (Wear latex gloves when handing and protective eye guards - and use outdoors or in a well ventilated area). Medium corrosion (from any source): ---------------------------------- Apply "DeoxIT D100L" sparingly to the affected area. Wait 20 minutes. Repeat if necessary. When the corrosion is completely removed, remove any excess "D100L". Apply "DeoxIT G100L" (formerly known as "ProGold") sparingly for long term protection. Light corrosion (from any source): --------------------------------- Apply "DeoxIT GL100L" sparingly. Notes: ----- "DeoxIT GL100L" - The military (and certain manufacturers) uses this "stuff" on edge connectors in sensitive system connectors to maintain excellent contact and easy removal/insertion w/o stressing boards and connectors. I've used it for years on the edge connectors of vintage computers (PDP-8, PDP-11, etc.) - and it is truly an amazing product. Works like perfection. The "DeoxIT" products seem expensive - but because you use the stuff "sparingly", a very small bottle lasts a long time. Cheers, Lyle -- Lyle Bickley Bickley Consulting West Inc. Mountain View, CA http://bickleywest.com "Black holes are where God is dividing by zero"

19 years, 8 months

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Intergraph / Clipper / HLH Orion

by aek＠bitsavers.org

OS install media is likely to be a big problem for any potential restore, and likely documentation too -- One of the folks involved with HLH lives in the Bay Area. I've been bugging him to donate the Orion material he has to CHM.

19 years, 8 months

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MIL-MOD8 (8008) simulator and a few other goodies posted

by dave06a＠dunfield.com

Over the break I finally got around to writing a simulator for the Microsystems International Limited MOD-8 (Modular-8). It has been very educational and interesting, and the final result of being able to experience what is like to run a very early microprocessor (8008) based system from Canada has been well worth it. The simulator is available on my site in the MOD8 section (Under "Designed in Canada") - I have also included an 8008 assembler, and my retyped source code to the MOD-8's ROM monitor (Monitor-8). This is the first step in getting my MOD-8 system up and running. I have a complete chassis (MOD8-8), as well as unpopulated ROM (MOD8-4) and RAM (MOD8-5) cards. What I don't currently have is the CPU (MOD8-1), Restart/TTY I/O (MOD8-2) and Control Buffer (MOD8-3) cards. If anyone can help locate these cards, it would be greatly appreciated. I do have several vectorboards which match the MOD-8 card format, and I will eventually construct the boards that I am unable to locate, however I would like to restore the system to as nearly original as possible. I will also need to locate a few more 1702 EPROMs - I have 3-4 of them, but the system needs a minimum of 7 for the ROM monitor. Programming them will also be a challenge (even my trusty DIO 29B doesn't do 1702s and the requirement for -40v as logic-low makes for a more complex construction project than I would like considering I will probably never need it again) - but the MOD8 has a built in 1702 programmer - Currently, I am planning to make a ROM board with a 2716 on it once I have the rest of the system completed, and use it to program 1702s for the original ROM board - an interesting kind of hardware/software bootstrap. The MOD8 was also known as the "GNC8" (Great Northern Computers), and a later version used an 8080 processor (MOD80). Any other MOD8/GNC8/MOD80 owners or interested parties out there? ----- Other things posted to the site over the break: - Updated my paper tape tools with PTE, a Paper Tape (reader) Emulator - allows you to send the content of the paper tape images over a serial or parallel interface as if from a physical reader. - Updated the NST (North Star Transfer) utility in my Horizon package to include a "Clean Head" function - easier than using N*DOS "RD" command to sweep the head back and forth over a cleaning disk. - Added disk images to the archive for: NorthStar Advantage (thanks Joachim!) Coleco Adam Regards, Dave -- dave06a (at) Dave Dunfield dunfield (dot) Firmware development services & tools: www.dunfield.com com Collector of vintage computing equipment: http://www.classiccmp.org/dunfield/index.html

19 years, 8 months

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IBM 5100/5110 ROS (ROM) images?

by brian＠quarterbyte.com

Has anyone extracted images of the Read Only Storage for the IBM 5100/5100 desktop computers? I haven't seen any mention of it anywhere, nor any simulators. Has anyone worked on this? Seems like it should be doable and worthwhile. Though, it might be necessary to build hardware to read out the ROS contents -- I don't think the 5100 provides programmatic access to the PALM object code for the 360 and S/3 emulators, just the BASIC and APL code. Does that sound right? Brian

19 years, 8 months

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Advice for tape drive repair / maintenance

by cclist＠sydex.com

Generally still OT, but on-topic regarding the maintainability of modern devices, did anyone perchance read the "A New Spin on White Goods" article in the December 15, Electronic Design? My clothes washer and dryer are going on 17 years and work just fine. I see no reason that I won'd get 20-25 years of service out of them. But reading about technology in the pipeline makes me wish they'd last forever. Motors controlled by DSPs with 10 A/D converters on chip, GUI displays, talk about inventorying the stuff in your refrigerator (using RFID tags on the food) really makes me wonder where the heck repair parts are going to come from when the new appliances are 20 years old. BTW, when I looked at replacement ovens over the last few days, I found that just about all of the new ones are loaded with features that I'll never use, such as "Sabbath Mode" (no kidding). It looks like a brave new world, folks. Cheers, Chuck

19 years, 8 months

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Kosher stove and fridge

by evan＠snarc.net

I didn't say anything about being 'special' (although the answer is 'plenty'.) I will respond the same to such comments about ANY minority group. I choose fights with caution, but ignorance is the biggest problem facing the human species.

19 years, 8 months

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Outbound Laptop; Was: Mac OS vintage

by jvdg＠sparcpark.net

Jeff Walther wrote: >> Last OS *my* 68000 Mac Plus has run is MacOS 7.1. MacTracker >> claims 7.5.5, I can't dispute that as I haven't tried it but I expect >> it might not do much good (no RAM left for applications). Same is >> claimed for the Mac SE and Classic and PowerBook 100. MacTracker >> doesn't report the Outbounds (Jeff?) but since (I think) they used >> motherboards from the above systems, > > The Outbounds used motherboards designed and built by Outbound but > with Apple ROMs installed which were scavenged from Apple Macs. > > I can't speak to the Notebook series but the Laptop (a much cooler > machine, IMHO) will not run past Mac OS 7.0.1. However, this is a > limitation in Outbound support. Mac OS 7.5.5 runs on any Mac except the 128K, the 512K and any Mac released after 7.5.5 was current. I have run it on a 2 MB PowerBook 100, and found it performs surprisingly well. More RAM is recommended, though, I wouldn't have put up with it for daily use on a machine with less than 4 MB RAM. However, I always felt that System 7.1 is a better choice for machines that support it than 7.5. After all, 7.5 is basically 7.1 with a bunch of shareware goodies thrown in. ,xtG tsooJ

19 years, 8 months

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Anyone else here do AS/400?

by ISC277＠CLCILLINOIS.EDU

I'm not entirely sure if this is off topic yet(hence why I put it on cctalk), but I know on a hobbyist level it's fairly rare. On Saturday I'll be picking up an AS/400 model 9406-600 originally purchased September 1997 with all the software and docs, licences etc that were ever used with the machine, from the original owner. I've contacted IBM and arranged license transfer (there was thankfully no charge) Does anyone else here deal with AS/400, or have a lingering interest in it? Secondly, I'm thinking of connecting a classic IBM terminal to it such as a 5251 S/34 term instead of the one that comes with it (something fairly modern, not sure of the model yet) I am curious; are any limitations on what I can connect, or are all twinax terminals pretty equal from a connectivity standpoint?

19 years, 8 months

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D-shell connector age?

by RodSmallwood＠mail.ediconsulting.co.uk

I expect they use Scart as opposed to D type for the same reason they use phono and not 75 Ohm BNC and XLR. Its cheaper in mass produced consumer electronics. Rod Smallwood -----Original Message----- From: cctech-bounces at classiccmp.org [mailto:cctech-bounces at classiccmp.org] On Behalf Of Jules Richardson Sent: 03 January 2007 23:08 To: On-Topic and Off-Topic Posts Subject: Re: D-shell connector age? Adrian Graham wrote: > On 3/1/07 21:33, "Jules Richardson" <julesrichardsonuk at yahoo.co.uk> wrote: > >> Anyone know where D-shell connectors first appeared on equipment? >> >> Interesting thread going on in a local group at the moment about why >> SCART [1] sockets are so horrible and nasty (prone to breaking pins, >> difficult to line up, prone to falling out etc.) and why something >> better, like a D-shell connector, wasn't chosen instead. > > SCART was originally known as PERITEL and originated in France. > > Make of that what you will :) To be honest, it's a great idea - and much better than non-European countries where the typical connectivity is via RF only. Going source->modulator->tuner->display never did seem like a good idea when you could just go source->display via separate shielded RGB signals. (The picture quality I've seen on the typical US setup is piss-poor compared to the UK, jokes about NTSC aside) It's just a shame that the connector they picked for the standard is so lousy. Having looked at some old pricelists, SCART connectors weren't much cheaper than D-shells - and given that they were typically used on expensive equipment which only contained a couple of them, the difference couldn't have been significant at all. The only thing I can think of (other than it being some odd political decision) is that you know SCART is SCART; if using D-shells there would have been a few idiots trying to plug any old computer cable into their equipment. That hardly seems justification to enforce a nasty connector choice, though. Assuming that D-shell connectors were around, of course - but if Chuck's right then they should have been readily available in the mid-70's. Pin spacing is wider on SCART, so presumably they suffer less from interference - but we all know that D-shells are perfectly good for video (particularly at TV rates). cheers Jules

19 years, 8 months

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back to the AGC, was Re: TTL 7400's Available

by ajp166＠bellatlantic.net

> >Subject: back to the AGC, was Re: TTL 7400's Available > From: Brent Hilpert <hilpert at cs.ubc.ca> > Date: Tue, 02 Jan 2007 20:24:39 -0800 > To: General at priv-edtnaa05.telusplanet.net, > "Discussion at priv-edtnaa05.telusplanet.net":On-Topic and Off-Topic Posts > <cctalk at classiccmp.org> > >Chuck Guzis wrote: >> >> I stumbled on this document: >> >> http://klabs.org/mapld04/papers/g/g233_alonso_p.doc >> >> while wondering about AC transformer-coupled logic and discovered >> that the original idea for the Apollo guidance computer was to use AC- >> coupled (core-transistor) logic. >> >> How's that for tying two threads together? :) > >Now that was a fun read. I'm still trying to understand his description of >the core rope ROM though. I'm familiar with core-rope ROM (or at least one >version of it) from attempting to make a reader to dump the contents of a Wang >calc microcode ROM, but the AGC version sounds like the >address-decoding/word-selection is done differently (..need a diagram). cant help on core rope. >And whats up with this mention of LCD displays? I didn't think there was >anything practical available that early, or that was going to stand up to the >rigours of space-flight - I have a calc with one of the first commercial LCDs >(1972) and it's still kind of rudimentary - slow, poor contrast, temperature sensitive... My memory of LCDs is they were way too late for the AGC and the basic AGC design used either LEDs or Lamps in a 7 segment format. >(And it confirmed that the AGC was constructed from a single gate/IC type.) That statement I believe is in error. While the logic used was RTL and a single family type the logic elements for that family by the mid 60s were more diverse than just a two input NOR. My junkbox contains parts from the era and includes JK-FF, three input nor, inverter buffers, and three wide NOR parts. It is true that the 2input NOR is the fundamental RTL logic building block there was nothing to limit it to 2,3 or 4 inputs for the die size of the time other than the hermetic flat packs of the day were typically 8/10/12 pins. Examples of mid 60s RTL. ul900 buffer inverter uL914 dual two input nor uL923 jk-ff uL925 dual 2 input nor gate expander (914 withput collector resistor). These were widely available and purchaseable by hobbists in 1967 at reasonable prices, typically under $2.00US. Most ham/electronics magazines had DMM and frequency counter projects using these parts by or during 1968. History of transistor computers by that time frame had already proven that a minimal set of logic blocks made general computer design easier. The TX1 and TX2 could stand as foundation machines on that basis alone. Those bocks were an inverter(buffer), NOR or NAND, and a register (FF). Any more specialized parts were likely used for core or other very limited use parts of a computer. RTL is old, some of the peices I have are now reaching 40! Allison

19 years, 8 months

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Missing Bit Redux

by Billy.Pettit＠wdc.com

Zane H. Healy wrote: Have you googled? That name sounds really familiar, are you sure they aren't still doing Ada stuff? Zane ------------------ Yes, there still do softwware. But in the late 80's, they made complete systems, designing all their own hardware. That's what I'm trying to find. Billy

19 years, 8 months

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Missing Bit Redux

by Billy.Pettit＠wdc.com

Billy wrote: And one that is driving me crazy, a company that supplied Ada systems to the military. Was first based in Mt. View, then moved to San Jose into one of the old Amdahl buildings. I can visualize the people and systems but can't remember the name. Getting old sucks. Of course as soon as I clicked send, the name came to me - Rational Systems. Anybody remember them or have any of their systems? Billy

19 years, 8 months

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Altair Basic Discussion and Calculator Forensics

by grant＠stockly.com

At 04:38 PM 1/3/2007, you wrote: >At this point, I would just use the cassette version, unless I needed the >extra memory. I would be tempted to patch the ID text. I might change >"VERSION" to "VER PT " and "VER CT ". It's not original, but could avoid >confusion. Is it not possible that the only difference between the paper tape and cassette is the CSAVE and CLOAD commands? (as well as --KCACR-- in the opening text) I think we need a memory image of unloaded paper tape and unloaded cassette basic to compare. Hopefully it is "patched" in a way that makes few differences. Or maybe the commands were just activated... >Next, I would build a BASIC version timeline based on reading all issues of >Computer Notes in chronological order. That would be a good time to make >hardware timelines and copy info about software and hardware changes. > >Now you see why I collect the newest Altairs. I can assume I have the most >powerful debugged MITS products. I wasn't in a hurry for the 680 because I >always needed drives for development and business software. As a collector, >I appreciate the weight and size and the opportunity to learn the M6800 at >the bit and ASM level. > > >The KCACR doesn't seem very popular. > >I need a better timeline on the 680 and Pertec acquisition. After looking at >some issues of Computer Notes, I see that the 680 was around for awhile. >Pertec purchased a lot of problems when the bought MITS. They may have >killed the 680 just as the KCACR was finished. The documentation was not >updated and few people got new KCACR. Some 680 owners may be industrial and >not interested in cassettes. Much of my stuff and a lot from eBay auctions >came from Albuquerque after MITS closed. The component or product may not >have reached many MITS customers. > >The KCACR is popular with me. I have two and a new reason to use the 680. >I've avoided cassettes on the 8800. Now I have a smaller platform to use for >learning. The 680 may lack software, but BASIC makes it easier write more. >There are good books on the 6800 with small code examples. A 33K 680 with >BASIC and switches with lights could keep someone busy for awhile. > > >What could we do to determine if the basics are the same? This would tell >us the math function similarity... > >I think that is too much detail for now. I'd just use the newest version >that would fit in memory with my application. So far I only have two software applications for the 680. Even if they are the same except for two commands. ; ) > >I could run the forensics on the Altair32 emulator and on both versions of > >the 680 basic. If it matches up with any of the 8080 basics then we've > >found the "version" of 8080 basic used as a starting point. > >Interesting idea. I'd start with Reading Computer Notes. It would only prove anything if all the 8800 basics have different finger prints. The disk basics could have the same fingerprint and we wouldn't care about that, I think. This doesn't rule out bug fixes in all non math areas... >I hope you find someone with additional software. Did you find a KCACR >manual? I don't have one and haven't checked Steve's list. I will look at >pricelists and see what is listed for the 680. I'm sure I will. Steve has the manuals. I'm making a big list for him. : ) Grant

19 years, 8 months

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Rational

by aek＠bitsavers.org

Yes, there still do softwware. But in the late 80's, they made complete systems, designing all their own hardware. That's what I'm trying to find. -- CHM just got a system w/o docs a month or so ago Did you mean Arete? We have one, and it ran a version of Unix called Arix.

19 years, 8 months

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My first Mac

by aek＠bitsavers.org

> This is a university town and, > so G3's aren't hard to come by cheap if the urge should ever hit me > again. Beige G3's are OK, and still have SCSI and serial ports. I have a gaggle of G3 powerbooks that I use at CHM for various recovery projects. Blue and White machines switched to USB and dumped SCSI and serial, which make them less interesting. If you want that sort of machine, get 2nd generation or later Grey G4. Avoid the last couple of generations of G4's, they had cooling problems... Putting a 1+GHz CPU upgrade into the earlier G4s makes a pretty decent system. I'm using one as my main machine at CHM. > I'd probably have to BUY an AAUI-to-RJ45 ethernet adapter Probably not worth messing with. You aren't going to be happy with the performance of a first generation PowerMac. If you really want a shell in the OS 9 environment, there's MPW. I remember someone playing with getting a bare-metal OS going on PPC Macs at one point with a CLI. Don't know how far they got. This is sort of interesting if you wanted to do some low level turn the interrupts off kind of programming on the machine, since you can't actually turn interrupts off completely in the OS 9 environment.

19 years, 8 months

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ALERT: Boeing Surplus, Cheap Workstations

by kyrrin＠bluefeathertech.com

This is directed mainly to ClassicCmp folk in or near the Puget Sound region. While at Boeing Surplus this afternoon, I noticed that there were having what amounts to a 'Blowout Sale' on SGI Indigo and Octane workstations. These systems are, as far as I know from talking to their computer guy, complete except for the hard drive (although the Sun Ultra 10 I bought still had the drive in it, admittedly blanked). Here's the best part: The price -- $1.00 Each. No, that's not a typo. One measley dollar for an SGI Octane, Indigo, or a Sun Ultra 10. Now the bad news -- Their computer guy tells me that they need to clear shelf space for a bunch of incoming Dell systems. If said Dells happen to come in tomorrow (Thursday, Jan. 4th), all the Octanes, Indigos, and other non-PC's will ALL be THROWN OUT. So -- If you want to take a crack at getting an ultra-cheap system, I would strongly recommend stopping at Boeing Surplus on Thursday. They're at 20651 84th Ave. S, Kent, WA 98032, open from 11:00 - 17:00 PST. I landed an Ultra-10 myself. Happy scrounging. -=-=-=-=-=-=-=-=-=-=-=- Bruce Lane, Owner & Head Hardware Heavy, Blue Feather Technologies -- http://www.bluefeathertech.com kyrrin (at) bluefeathertech do/t c=o=m "If Salvador Dali had owned a computer, would it have been equipped with surreal ports?"

19 years, 8 months

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Mac OS vintage (was: Re: Sun E450 server officially vintage)

by mtapley＠swri.edu

At 15:24 -0600 1/3/07, Zane wrote: >Consider this, it's been nearly 10 years since a Mac containing a 68000 CPU >was even able to run the current version of the operating system. I forget >if support was dropped with System 7.6, or Mac OS 8.0. > > Zane To elaborate on what Cameron said: Last OS *my* 68000 Mac Plus has run is MacOS 7.1. MacTracker claims 7.5.5, I can't dispute that as I haven't tried it but I expect it might not do much good (no RAM left for applications). Same is claimed for the Mac SE and Classic and PowerBook 100. MacTracker doesn't report the Outbounds (Jeff?) but since (I think) they used motherboards from the above systems, I would be surprised if they ran later versions. I'm not aware of any later 68000 Macs (or indeed, any others excepting the 128k/512k/fat Mac series, none of which went to OS 7.x). If the question was whether 680x0 processors support OS 8, the answer to that should be yes. Quadra 950 is claimed to run MacOS 8.1, as is PowerBook 540/c and others, again per MacTracker (which is a reasonably useful resource for these machines). The Mac OS category in the same program says the same thing, giving requirements as follows: 7.1 68000 or later, 2 MB RAM, 4 MB hard drive 7.5 68000 or later, 4 MB RAM, 21 MB hard drive 7.6 32-bit clean 68030 or later, 8 MB RAM, 40-120 MB hard drive 8.0/1 68040 or later, 12 MB RAM, 195 MB hard drive 8.5 PPC, 16 MB RAM, 150-250 MB hard drive 8.6 PPC, 24 MB RAM, 190-250 MB hard drive Wow. Looking back, it's amazing how fast requirements shot up. I'm really glad I sort of sat out that period as far as buying computers. Our main home system was a Mac Plus until we leapfrogged to a Powerbook 3400 (which is still our current system). Nice to go >from on-topic to brand-new machines - gives us a while to save up our computer-buying budget. FWIW, hit http://www.mactracker.ca/ if you want to grab the (freeware) program I'm looking at. Gotta love these guys, there's a version which runs on MacOS 8.5 still available, as well as one for (spit) Windows and (grin) *iPod*. Not affiliated. -- Mark Tapley, Dwarf Engineer (I haven't cleared my neighborhood) 210-379-4635 Dwarf Phone, 210-522-6025 Office Phone

19 years, 8 months

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Missing Bits

by Billy.Pettit＠wdc.com

In the mid-80's when I first moved to Silicon Valley, I worked for Fujitsu Computer Products. I (and my support engineers) went around the Valley to various companies installing Hard Drives. Recently, I've been trying to write up some of those experiences and found that I have almost nothing on a lot of the companies. And I see that bitsavers doesn't have much either. Does anybody remember or know anything about: Daisy Systems - Design Automation stuff Arix or later, Arete - Unix systems for government sites Pixel - Unix systems California Computer Corporation - Training systems General Computer - 16 and 32 bit CPUs System Industries - Controller PCBs DEC compatible Intertest - Design Automation And one that is driving me crazy, a company that supplied Ada systems to the military. Was first based in Mt. View, then moved to San Jose into one of the old Amdahl buildings. I can visualize the people and systems but can't remember the name. Getting old sucks. I'd love to hear about anyone's experience with any of these companies and especially if any documents or hardware survived. And I'm especially interested in ARIX. It was a very unusual company, and obliquely mentioned in the 6 part TV series on Silicon Valley. Billy

19 years, 8 months

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Sun E450 server officially vintage

by compoobah＠valleyimplants.com

> Eric J Korpela wrote: >> Even though it may be a collectible, it's not quite vintage. Yet. >> Things branded "Sun 4," I think would count, as would various >> SPARCstations and Solbournes. Has any 64-bit microprocessor been >> declared officially vintage yet? > > I already mentioned the Alpha 21064, but I believe the MIPS R4000 was > even earlier. > > Peace... Sridhar Well, we're talking three things: processor architectures, processors, and systems. The 21064 is definitely on-topic, as are the early AXP systems (DEC 3000/4000/7000) The basic Alpha architecture is probably irrelevant, because I have never heard a discussion about architectures as being on or off topic, generally discussions of that nature are sufficiently technical to pass. The R4000 is an interesting case, because the chip predates the 21064, but (a) early versions could not run 64-bit since they had a bug in the MIPS-III instructions and (b) no R4000/R4400 systems were 64-bit capable until the Onyx in 1993 unless I've missed something. In short, therefore, the 64-bit potential of the R4000 arrived first, but 21064 realized a 64-bit system first. Take that how you will.

19 years, 8 months

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yet another Cat *purr* on ePay *meow*

by chrism3667＠yahoo.com

http://cgi.ebay.com/Canon-CAT-computer-Jef-Raskin-PRE-Macintosh-MAC-HISTORY… listed under Apple/Macintosh category. Don't know if that'll make a difference, I don't search by categories myself. Not as nice as the last one (or mine woohoo). __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

19 years, 8 months

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Sun E450 server officially vintage

by compoobah＠valleyimplants.com

Well- Sun4u is still in production, and it doesn't have any "first" cachets like the Ultra1, E10k, etc. so I sort of see where Jay's going. Older Sun4 machines (4m 4d 4c -4) would probably be ontopic, though. SGI 4Ds (loosest definition, all MIPS based machines rather than the strict definition of from the 4D/60 to the introduction of ARCS PROMs) are probably fair game now, given that the line has been discontinued effective Dec 31. Newish Alphas and HP-9000s are probably a bit shady, though, since they're still in (semi) production, but not pushed, so they could be on.

19 years, 8 months

1
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Altair Basic Discussion and Calculator Forensics

by grant＠stockly.com

This is a discussion started off list. >Startrek might port to 680 BASIC. It runs the 8080 Tic Tac Toe program. I haven't tried loading star trek yet. It might just work out of the box. I'll find out tonight. More responses below... >There are a couple of issues that I am not too sure about. > >The 680 BASIC VERSION 1.1 REV 3.2 lable uses VERSION and REVISION. I used >mostly 300-5-C. The C and F revisions of Version 5 BASIC are the only 300 >series that work. There is a Version 5.0 that I don't remember much about. I >started with BASIC 4.1 and always thought it was the first "good" version. I >assumed all earlier versions were buggy and missing features. > >At first, I thought 680 BASIC VERSION 1.1 REV 3.2 was similar to 8080 BASIC >3.2. Now I don't know because I'm not used to working with Revision numbers. >The 300 series uses Revision letters. At this point, I don't know how the >680 and 8080 BASIC versions compare. The 680 BASIC VERSION 1.1 REV 3.2 >language and interpreter have at least one feature introduced in 8080 BASIC >4.0. > >The term "regular BASIC" is ambigous. There are several versions of BASIC. >Which ones are "regular"? The term BASIC can refer to the language or the >interpreter. When someone refers to 8K BASIC, the size is obvious and a set >of language features is assumed. Disk Extended BASIC adds language features, >bug fixes, and major internal changes. Do all 8K BASICS support the same >languages and syntax. > >The term "patches" could be accurate, but I'm more comfortable with version >and revision. The label MITS ALTAIR 680 BASIC VERSION 1.1 REV 3.2 may be a >port of 8K BASIC. What version and revision of 8K BASIC? The examples below >show the same lable on two two sizes of interpreter. MITS should have >changed the lables. > >I don't know which 680 BASIC VERSION 1.1 REV 3.2 came first. Do they both >translate the same exact language? The obvious guess would be that the paper >tape interpreter has the CSAVE command removed or disabled. It could also be >that the smaller BASIC supports the older CSAVE syntax. It could also be >that the bigger version has changes and someone forgot to bump the revision >number. I think non KCACR came first. The KCACR doesn't seem very popular. Its not even in a lot of the -system- documentation. What could we do to determine if the basics are the same? This would tell us the math function similarity... http://www.rskey.org/~mwsebastian/miscprj/forensics.htm I could run the forensics on the Altair32 emulator and on both versions of the 680 basic. If it matches up with any of the 8080 basics then we've found the "version" of 8080 basic used as a starting point. >Does CSAVE work if you load the paper tape version into a machine with a >cassette interface? Nope. Not with any of the syntax changes either. Grant

19 years, 8 months

1
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Shipping company moveit.com

by wacarder＠earthlink.net

I do all of my large shipping with them too, and have been totally satisfied with their service. I agree with everything that Guy has said. I have used them many times during the past 3 years to ship *LOTS* of large equipment, PDP-11 blinkinglight systems in racks, fragile 35 year old terminals on pedestals, etc. They have always delivered oir picked up on time and it was a painless process just as Guy described. I was a little nervous with my first shipment, but they have proven time and time again that they will get my stuff moved in a safe and timely manner. Last week I they delivered two large racks of 35 year old PDP-11 systems and drives, a DecWriter, and a card reader to my place. They gave me a delivery date with a 3 hour window of delivery, and the delivery truck came right in the middle of the delivery window. Smooth and painless. Ashley -----Original Message----- >From: Guy Sotomayor <ggs at shiresoft.com> >Sent: Jan 2, 2007 4:51 PM >To: General at shiresoft.com, Discussion at shiresoft.com@null, On-Topic and Off-Topic Posts <cctalk at classiccmp.org>, null at null >Subject: Re: Shipping company moveit.com > >I do *all* of my large shipping through them (unless I do it myself). I >have been *extremely* happy with them and I've been using them for a >number of years now. One of the things I like about them is that they >are pretty much "fire and forget". I don't have to hand hold them to >get stuff done and they do a good job of getting stuff moved with no >breakage. I do however give them *all* of the information at the start >of the transaction. > >Of course, I've done enough business with them that they call me up >occasionally to see if I have anything that needs to be shipped. > >Richard wrote: >> I'm using them for a dovebid sale and while things are scheduled to be >> delivered tomorrow (knock on wood), so far I've been pretty >> unimpressed with moveit.com. They haven't been very good at >> communicating important details like MY SHIPPING ADDRESS, when the >> shipment would be made, how payment was to take place, etc. >> >> They say they do a love of business through dovebid, and while that >> may be so, I don't think I would use them again in the future compared >> to my experiences with cratersandfreighters.com. >> >> Has anyone else used these guys? >> >> What was your experience? >> > >-- > >TTFN - Guy > >

19 years, 8 months

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Recovering Cassette Tape Records

by aliensrcooluk＠yahoo.co.uk

--- Grant Stockly <grant at stockly.com> wrote: > > I think the reason that the demodulated output is > not 300bps is the KCACR > is locking onto the tape speed? I don't know anything about the KCACR, but the way the Spectrum and C64 saved data the computer would go by the speed of the tape. Typically, any data would be preceeded by 4 (perhaps less?) seconds of pulses which would allow the computer to work out the speed of the tape. I can only assume other computers used this method too?? Regards, Andrew D. Burton aliensrcooluk at yahoo.co.uk

19 years, 8 months

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IBM 5100/5110 ROS (ROM) images?

by aek＠bitsavers.org

> Has anyone extracted images of the Read Only Storage > for the IBM 5100/5100 desktop computers? Eric has talked about doing it. Apparently it is scanned during initial self-test, so it could be captured with a deep logic analyzer Considering how many have failed, it's something that needs doing.

19 years, 8 months

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Needed: 80micro magazine

by aliensrcooluk＠yahoo.co.uk

--- Chuck Guzis <cclist at sydex.com> wrote: **>> snip <<** > > And here's their web site--they seem to be very > games-oriented > nowadays: > > http://www.enterbrain.co.jp/login/ > > Enjoy, > Chuck > LOL. Just a bit! Enterbrain own the largest Japanese (and Worldwide??) brand of videogames magazines, including: Arcadia (arcade mag) Famitsu PS2 (errr....!!) Famitsu XBox (erm!) Famitsu Wii (that may not be out yet!) Famitsu Weekly (weekly multi-format console mag) Famitsu Wave DVD/Mag I get the last one. It comes out every month and has 2 DVD's packed with adverts, tips, wacky Japanese stuff (well.. most games mags/TV shows are nutty - anyone here in the UK recall Bits or Games Master?), reviews and interviews. Theres usually around 3 hours of stuff. Going well OT, sorry Jay. Regards, Andrew D. Burton aliensrcooluk at yahoo.co.uk

19 years, 8 months

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Old Mac music software

by aliensrcooluk＠yahoo.co.uk

--- Joachim Thiemann <joachim.thiemann at gmail.com> w rote: **>> snip <<** > (*) This may be due to the fact that I mostly used > Trackers before > leaping into MIDI. OctaMED is a heck of a great > program, and a good > enough reason to keep my Amiga up and running. > OctaMED :) I tried various pieces of music software on the Amiga including Music Mouse (great idea, but you need Deluxe Music Construction Set to save the music! - I have it now too, BTW), Tracker and a few others. Teijo Kinnunens OctaMED was by far the easiest to use, for me atleast. I have only composed 2 songs so far (using the score sheet window - I have the tracker style code mode, despite being the only way to add special effects). The first was rubbish (seriously), but the 2nd was very good and only took 2 hours to compose. It only last's 1 min 30 secs and is "played" on the Bamboo Zylaphone. I called it "Jungle Beat". Teijo's 2 demo pieces of music that acompanied OctaMED 5 (the version I use) were awesome. Is he still in the music scene somewhere? OctaMED became OctaMED Sound Studio (which I have the demo of somewhere) but I wasn't keen on it. Regards, Andrew D. Burton aliensrcooluk at yahoo.co.uk

19 years, 8 months

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Sun E450 server officially vintage

by aliensrcooluk＠yahoo.co.uk

--- David Griffith <dgriffi at cs.csubak.edu> wrote: > On Wed, 3 Jan 2007, Zane H. Healy wrote: > > > > > number of times system has inflicted > injuries on the owner > > > > > > That seems reasonable - I'm sure we all agree > every QBUS enclosure > > > ever produced is on topic :-) :-) > > > > I don't believe I've ever been injured by a Q-Bu s > enclosure. You just need > > to be careful! :^) I can't remember loosing any > skin, even on a BA23. > > Granted most of the time I've used a BA123. > > I've never used such a thing, but I have gashed my > hand on the corner of a > disused one. > Never heard of one myself(!), however I have come close to cutting myself when putting a 1MB RAM expansion card into the trapdoor on my Amiga 600 (giving it a whopping 2MB total chip RAM) - I just got a few grazes (spelling?). Regards, Andrew D. Burton aliensrcooluk at yahoo.co.uk

19 years, 8 months

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D-shell connector age?

by aliensrcooluk＠yahoo.co.uk

--- Jules Richardson <julesrichardsonuk at yahoo.co.uk > wrote: > > Anyone know where D-shell connectors first appeare d > on equipment? > > Interesting thread going on in a local group at th e > moment about why SCART [1] > sockets are so horrible and nasty (prone to breaki ng > pins, difficult to line > up, prone to falling out etc.) and why something > better, like a D-shell > connector, wasn't chosen instead. > Yeah, the cable seems to put weight on the SCART socket and caused a glitchy SCART socket (or cable?) so we had to stick a thin piece of card in to get it to work!! I use a 3-way SCART box myself now, no more connecting/deconnecting to damage those pins, or the sockets on the TV/DVD/VCR. > Thing is, SCART was apparently first used in > consumer A/V equipment in 1977, > which probably means it was thought up in the > mid-70's. Really? I never realised SCART was so old, I thought it was a modern thing. Or was it just re-introduced by TV manufacturers? Regards, Andrew D. Burton aliensrcooluk at yahoo.co.uk

19 years, 8 months

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Anyone else here do AS/400?

by ethan.dicks＠gmail.com

On 1/3/07, Bob Brown <bbrown at harpercollege.edu> wrote: > I've long had an interest in AS400. Any leads on other systems being > available in the Chicago area? It's not Chicago, but I'm in Columbus (6-7 hrs away) and probably won't do much with the smallish AS/400 I have once I get it to power up (still missing the twinax cable to the console terminal). I'd post model and specs, but it's not where I am at the moment. -ethan

19 years, 8 months

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Mac pre-OS X versions and hardware support (was Re: Sun E450 server officially vintage)

by ethan.dicks＠gmail.com

On 1/3/07, Cameron Kaiser <spectre at floodgap.com> wrote: > > > I just what to know if the MAC is vintage if contains a 68000? > > > > Consider this, it's been nearly 10 years since a Mac containing a 68000 CPU > > was even able to run the current version of the operating system. I forget > > if support was dropped with System 7.6, or Mac OS 8.0. > > 8.5. 8.0 dropped the '030 and prior, but an '040 could still run 8.0 and 8.1 > officially, and an '030 could run them with some hacking. Was that due to instruction set differences? Stack frame differences? MMU differences? -ethan

19 years, 8 months

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Network question

by rickb＠bensene.com

Chuck Guzis wrote: >I'm beginning to wonder if it's time I upgraded my home network. The >NICs on most of the machines are 100BaseT, with the odd old machine >sporting a 10BaseT. But it's the hubs I wonder about--two old >National Semi 6-port Datamover 10BaseT units coupled together with a >10Base2 (coax) link. It's that coax that I dread replacing--it goes >between floors and snaking it through the walls was a real chore. >My DSL speed is 1.6Mbps, so I'm thinking that there's little reason >to upgrade the setup. Am I thinking correctly or am I likely to see >an improvement in internet access speed if I upgrade? My home network is rather different. My "data center" is out in the shop. The network out in the shop is centered on a 1GB/Sec. Ethernet switch, with all of the infrastructure servers hooked up to it. There's also an earlier 10/100 switch, which supports a couple of older machines that don't really need GigE (dedicated SETI at Home machines). My DSL connection is 1.5Mb/Sec., and I use a nice router/firewall with a separate seconday firewall creating a DMZ between the main home network and the Internet. The secondary firewall connects into the GigE fabric. There's an 802.11G (108Mb/Sec. link speed) wireless access point in the shop for wireless use when I'm out there. The shop is also completely wired with Cat6 cable to many drops. I have two GigE Cat6 lines, one active, one as a spare) that run in conduit underground between the shop and the house. In the house, there's a GigE switch, a 10/100 switch for older machines, an 802.11G wireless access point. The wireless stuff all uses WPA for improved security, although out there where I live, the chances of "snoops" is pretty small. The wireless access point are long-range devices...I can actually connect to the WAP in the house from anywhere within about 100 yards of the house. The house is all wired with Cat6 cable also, with lots of drops. All of these upgrades (previously, everything was 10/100), have made a dramatic improvement with regard to 'response' of end-user machines. The GigE interconnect between the servers and the end-user machines. As far as Internet connectivity goes...in networks, as in racecars, the weakest part is the limiting factor. The T1-equivalent DSL connection is SO much slower than any of the rest of the network, that upgrading everything to GigE made absolutely no detectable difference in terms of speed of access to the Internet. So, if your main concern is Internet connectivity, leave your network as-is. Spending the money to upgrade really won't make any substantial difference there. If you have any time of server-based infrastructure (file server, media server, Email server, etc.) then upgrading the "core" network can make a big difference in terms of response to core network services. If you want your Internet to be faster, spend the money to try to get a faster connection (if possible). With DSL, the limiting factor on speed is the distance from your home to the closest DSLAM, and the equipment used by your ISP. Rick Bensene

19 years, 8 months

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my vintage Christmas present

by legalize＠xmission.com

Back in the early 90s, I rescued some equipment from work that was being discarded. This is where I got my ESV/50 and my ARS (Advanced Rendering System) and other E&S bits. At some later time, a former E&S coworker really wanted a board out of the ARS as a keepsake because he worked on it. Since I had not powered up/connected my ARS to my ESV even once and I wasn't yet totally smitten by the "collecting bug", I sent him the board. Since then I have regretted that a little bit because this board wasn't optional in the ARS, there is only one of these boards as it houses the main processor array. However, I also rescued some equipment that I gave to another former E&S coworker. As time went by, he decided that he wanted to get rid of his equipment and asked me if I wanted it. Since E&S equipment is as rare as hen's teeth, I immediately said yes. Well, we went over after Christmas on a sunny Saturday afternoon and picked up the gear. He had an ESV/10 Workstation (a smaller version of my ESV/50), a Freedom 3000 accelerator and an ARS! Now the ARS is probably the biggest baddest piece of iron that the Workstation Division of Evans & Sutherland ever produced. Its a fairly large box, about the size of a deskside SGI Onyx if you're familiar with that. Except its not a whole computer, its just a peripheral! Its whole purpose is to render photorealistic images at full screen resolution in just a few seconds. It has hardware antialiasing, hardware texture mapping, environment mapping and reflection mapping. In the late 80s/early 90s this was pretty hot shit although now you can get it on a cheapo $100 graphics card for your PC. (To many of you, this will be a familiar refrain!) Now that I have a 2nd ARS, I can get one back in working condition. Its a rather unique beasty, considering that only one piece of software (CDRS, the "Conceptual Design and Rendering System") ever supported the ARS. The primary customers of CDRS were car companies doing auto body design. Therefore you had to do high quality renderings that showed how the reflections and gloss would look on the painted car body in order to satisfy the customer. Customers for CDRS were a "who's who" of the car industry at the time: Ford, Chrysler, Daimler-Benz, Harley-Davidson, Renault and I'm sure some others I'm forgetting. If I get the ARS back in working order, then its quite possible that I will have the only working ARS on the planet, unless there are still some kicking around the automotive companies. -- "The Direct3D Graphics Pipeline" -- DirectX 9 draft available for download <http://www.xmission.com/~legalize/book/download/index.html> Legalize Adulthood! <http://blogs.xmission.com/legalize/>

19 years, 8 months

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Old Mac music software

by gordon＠gjcp.net

Sort of off-topic(-ish) but I'm looking for some midi sequencing software to run on my Powerbook 180. Actually, since they came out in about '92 I think they might well be on-topic. Most of the synths I want to connect are older than that. Anybody got any thoughts on this? I tried Midigraphy but couldn't really get my head around it. Gordon.

19 years, 8 months

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Anyone else here do AS/400?

by ISC277＠CLCILLINOIS.EDU

I'm not entirely sure if this is off topic yet(hence why I put it on cctalk), but I know on a hobbyist level it's fairly rare. On Saturday I'll be picking up an AS/400 model 9406-600 originally purchased September 1997 with all the software and docs, licences etc that were ever used with the machine, from the original owner. I've contacted IBM and arranged license transfer (there was thankfully no charge) Does anyone else here deal with AS/400, or have a lingering interest in it? Secondly, I'm thinking of connecting a classic IBM terminal to it such as a 5251 S/34 term instead of the one that comes with it (something fairly modern, not sure of the model yet) I am curious; are any limitations on what I can connect, or are all twinax terminals pretty equal from a connectivity standpoint?

19 years, 8 months

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MITS Altair 680 KCACR Cassette BASIC Recovered

by labomb_s＠yahoo.com

Hi Grant, >One 8bit ASCII and another forced to 7bit. This one attached has >been forced to 7bit ASCII. Both files WILL load into the Altair without >issue. The tapes are comprised of recorded ascii data (s-record format) ...so if you are just reading the data as is (vs. loading the data via a s-record loader) then you should probably get the same thing regardless if you use 7 or 8 bits. >It seems random which bytes had the 8th bit set and which >didn't. I assume that you are referring to the data in memory as a result of the ROM tape loader execution? If so, you will note that Basic has bit 8 set on many ascii text elements within the source. Microsoft Basic used the high bit set in the keyword tables for the code that searched the keyword tables. They also often used the high bit to determine the last character of message strings. > Also, there is what appears to be garbage after the S0 record. I >have no idea why. The tape has a bunch of 7Fs, then S0 and a bunch of >garbage, and then 00s. At the end there is some garbage too. The KCACR >ROM appears to ignore it. It appears that the tape is similar to the MITS Absolute Tape Load format. I'm guessing that your format is as follows: First ... Pre-leader - comprised of a series of bytes that represent the length of the tape checksum loader. For example, a series of 7F bytes would mean that the checksum loader is 127 bytes long. Second... S-record header record (S0) Third... Checksum loader - intended for those who do not have the kacr ROM. It should be 127 bytes in in your example. Forth... Tape leader - a series of nulls Forth... The actual code. There may be some garbage bytes appended, depending on how MITS dumped the tape (specifically, how long the address range specified to dump was). Fifth... Trailer - a series of nulls This is similar to the typical format used for MITS tapes (both paper and cassette based). Scott __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

19 years, 8 months

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altair 680 tapes

by grant＠stockly.com

Posted for comment, started off list: I have about 3-4 recordings of the tape. As well as a "reproduction" of the tape. I lifted the "transmit" leg on the serial chip so that it wasn't in the socket. Then I put a jumper from the receive pin to the transmit hole. While playing the tape into the Altair I recorded the remodulated data into the computer and made a note if there were no checksum errors. As the tape was being demodulated the KCACR was remodulating the data at the same time. I have never been able to get a computer recorded file to load into the Altair. This may be caused from a lack of audio amplitude? I was surprised that the KCS.EXE utility only found 3 errors in the cassette tape wav file but found 11,000 errors with the remodulated WAV file. There was a slight DC offset and a background hum (not 60hz) I'm STILL trying to figure out why I have a few 13 minute long and a few 10 minute long recordings of the SAME TAPE!!!! Once I am through with this process I will make a tutorial. I'll also offer to recover other people's tapes. I LOVE time capsules! : ) Grant >If you haven't done so already, back up your tapes to .wav files right >away! > >Just plug your cassette player into your PC and do some high quality >mono recordings (8bits @ 22050 samples/sec). Avoid MP3 because of lossy >compression. > >Look here: http://www.netbay.com.au/~dxforth/ if you want to >post-process the .wav files, but it's even easier to just feed the audio >back and forth via your sound card. > >Once you have the digital data, you can always recreate the tapes but if >you lose the tapes, that's it. > >Jack

19 years, 8 months

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TCP/IP Testing help, Round 2

by mbbrutman-cctalk＠brutman.com

Happy New Year! I'm back at it again - I plan on doing better this time. (I've fixed the specific double delete bug that bit me last time, improved tracing quite a bit, and added a lot of consistency checking code.) Just like last time, all you need to do is telnet to 24.159.203.149, port 2301. Once again, that's my Linux box, but today it is forwarding port 2301 to my PCjr. The commands are slightly enhanced from the last test, but it isn't anything highly interactive. Up to 9 people can connect simultaneously. We didn't get more than 2 or 3 simultaneous connections last time, so I'm probably overly optimistic. Some of you noted from last time that there is no character echoing or line editing. Telnet users on Unix machines will probably have local line editing, which makes things a wee bit nicer. The standard Windows telnet client doesn't do that by default, so you will type but not see your characters. That's a project for a different day. Here is a picture of the machine you are connecting to, complete with the Western Digital 8003 Ethernet card grafted onto the side: http://brutman.com/PCjr_WD_small.jpg And lastly, if you remember, type in your OS and machine type as a command. It will complain about it being an invalid command, but I'll see it in the log and I'll have a better idea of what I'm testing against. Thanks in advance, Mike

19 years, 8 months

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MITS Altair 680 KCACR Cassette BASIC Recovered

by grant＠stockly.com

I thought I would post this for the search engines to latch a hold onto. It appears that my 20k post including the Cassette Basic source was killed. If you want the authentic S record listing of MITS Altair 680 KCACR Basic then send me an e-mail... If you mentioned that you wanted it, please e-mail me off list again. I may forget! I am in the process of setting up a web page on the 680, so I'll put the information there when I'm ready. If someone is interested in helping me "figure out" what is on the leader and footer of the tape, please request the original files. I have two. One 8bit ASCII and another forced to 7bit. This one attached has been forced to 7bit ASCII. Both files WILL load into the Altair without issue. It seems random which bytes had the 8th bit set and which didn't. Also, there is what appears to be garbage after the S0 record. I have no idea why. The tape has a bunch of 7Fs, then S0 and a bunch of garbage, and then 00s. At the end there is some garbage too. The KCACR ROM appears to ignore it. I've found this file reliably loads at 9600bps. It takes 21 seconds to load into a 680. .J 0000 MEMORY SIZE? TERMINAL WIDTH? 80 WANT SIN-COS-TAN-ATN? YES 9604 BYTES FREE MITS ALTAIR 680 BASIC VERSION 1.1 REV 3.2 --KCACR-- COPYRIGHT 1976 BY MITS INC. OK ------------------------------------------ S10400F3FF09 S11300000D7600F37E1A4F7E034A00004838002C18 S113001000000000000000000000000000000000DC S113002000000000000000000000000000000000CC S113003000000000000000000000000000000000BC S113004000000000000000000000000000000000AC S1130050000000000000000000000000000000009C S1130060000000000000000000000000000000008C S1130070000000000000000000000000000000007C S1130080000000000000000000000000000000006C S1130090000000000000000000000000000000005C S11300A0000000000000000000000000000000004C S11300B00000000000000000000000000000007CC0 S11300C000C926037C00C8B6EA60813A240881206E S11300D027ED803080D039FFEA607E03D500000030 S113010000000000000000000000000000804FC755 S113011052007E1A4F0CF10E6015E6165A16000DA9 S1130120710E410E6C18521932142818BE19681930 S11301306E19B419F811BC10D50F1D117910F510F2 ... Blah hlah blah, ask me for more...

19 years, 8 months

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MITS Altair 680 KCACR Cassette BASIC Recovered

by grant＠stockly.com

I thought I would post this for the search engines to latch a hold onto. I thought a second about posting a 20k e-mail, but the posts from the past hour FAR exceed that. ; ) If someone is interested in helping me "figure out" what is on the leader and footer of the tape, please request the original files. I have two. One 8bit ASCII and another forced to 7bit. This one attached has been forced to 7bit ASCII. Both files WILL load into the Altair without issue. It seems random which bytes had the 8th bit set and which didn't. Also, there is what appears to be garbage after the S0 record. I have no idea why. The tape has a bunch of 7Fs, then S0 and a bunch of garbage, and then 00s. At the end there is some garbage too. The KCACR ROM appears to ignore it. I've found this file reliably loads at 9600bps. It takes 21 seconds to load into a 680. The listing below is unmodified from an original Altair 680 tape. The garbage leader and footer have been removed. .J 0000 MEMORY SIZE? TERMINAL WIDTH? 80 WANT SIN-COS-TAN-ATN? YES 9604 BYTES FREE MITS ALTAIR 680 BASIC VERSION 1.1 REV 3.2 --KCACR-- COPYRIGHT 1976 BY MITS INC. OK ------------------------------------------ S10400F3FF09 S11300000D7600F37E1A4F7E034A00004838002C18 S113001000000000000000000000000000000000DC S113002000000000000000000000000000000000CC S113003000000000000000000000000000000000BC S113004000000000000000000000000000000000AC S1130050000000000000000000000000000000009C S1130060000000000000000000000000000000008C S1130070000000000000000000000000000000007C S1130080000000000000000000000000000000006C S1130090000000000000000000000000000000005C S11300A0000000000000000000000000000000004C S11300B00000000000000000000000000000007CC0 S11300C000C926037C00C8B6EA60813A240881206E S11300D027ED803080D039FFEA607E03D500000030 S113010000000000000000000000000000804FC755 S113011052007E1A4F0CF10E6015E6165A16000DA9 S1130120710E410E6C18521932142818BE19681930 S11301306E19B419F811BC10D50F1D117910F510F2 S1130140E11100111D112479131D7913127B146020 S11301507B15147F185B500BA4460BA3454EC44675 S11301604FD24E4558D4444154C1494E5055D444BD 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S113170033C0308D022091BD15A4BD15E8CE00A3D1 S11317107E131AD6A95858DBA95880301B97A920E4 S11317209E91434FF8947423F794742400CE02A03E S11317308D10968AD68B97B0D7B1C6900DBD15F390 S11317408D037E0887CE01008620D6B32A02862D1B S1131750A70097B3DFBD088630D6AF26037E1834C2 S11317604FC1802208CE1729BD145E86FA97A7CEF2 S11317701725BD160E2E10CE1721BD160E2E10BD28 S113178014ED7A00A720F0BD15067C00A720E0BD6B S1131790130ABD1630C60196A78B072B08810824AF S11317A0044A1686024A4A97A9D7A72E11DEBD8697 S11317B02E08A7005D2705863008A700DFBDCE18D8 S11317C040C68096B2AB0297B296B1A90197B19682 S11317D0B0A90097B05C565928E92403C00B50CB3C S11317E02F080808DF9CDEBD0817847FA7007A0055 S11317F0A72605862E08A700DFBDDE9C53C4808C77 S1131800185226BFDEBDA60009813027F9812E2794 S11318100108862BD6A9271E2A03862D50A70286E7 S113182045A701862F4CC00A24FBCB3AA703E70443 S11318306F052004A7006F01CE010039800000006D S1131840FE7960002710FFFC18000064FFFFF6001B S11318500001BD15CCCE183CBD158E27614D260365 S11318607E1386CE00ABBD15AA5F96BA2A10BD16AC S11318705ACE00AB96BABD160E260343D658BD15F4 S1131880C137BD1428CE00ABBD145E8D3132462461 S1131890AA96AF27037300B3398138AA3B0774941F S11318A02E40772E4F707A88026E7C2AA0E67EAA9C S11318B0AA507F7FFFFF8180000081000000BD15DA S11318C0A4CE18998D3D96AF818825037E14DEBD84 S11318D0165A96588B8127F436CE1407BD131ABDB9 S11318E0145BCE00A3BD130F8DA7CE189D8D177F5B S11318F000BB32BD14C739DFBDBD15A48D058D08ED S1131900CE00A37E145EDFBDBD159FDEBDE600D70D S1131910B408DFBD8DEDDEBD08080808DFBDBD13CA S11319201ACE00A77A00B426EB399835447A682891 S1131930B146BD15D9172B14CE010DBD158E4D27FB S1131940E8CE192A8DBDCE192EBD131AD6B296B083 S113195097B2D7B07F00B396AF97BC868097AFBDE0 S1131960136BCE010D7E15AACE19D7BD131ABD1562 S1131970CCCE19DBD6BABD150DBD15CCBD165A7F1C S113198000BB96B6D6AFBD1312CE19DFBD130F96AA S1131990B3362A0ABD130A96B32B06730060BD182A S11319A091CE19DFBD131A324D2A03BD1891CE19F9 S11319B0E37E18F7BD15A47F00608DB2CE00AB8D19 S11319C0A4CE00A3BD158E7F00B396608D06CE0015 S11319D0AB7E15123620C781490FDB83490FDB7FAD S11319E000000004861ED7BA8799266487233458DA S11319F086A55DE083490FDA96B3362A028D2096D8 S1131A00AF3681812505CE14078DC6CE1A238DA14C S1131A103281812506CE19D7BD130F324D2A037E9C S1131A2018913908783BD74A7B846E027C2FC1FE1B S1131A307D9A31747D5A3D847E917FC87E4CBBE48F S1131A407FAAAA6C8100000000CE1B75BD0887CE5A S1131A50FFFFDF8A8E1C7C9F827F0111BD0842CE6E S1131A600065DF61CE1C0BBD0887BD0907DFC8BD5B S1131A7000BF814127D34D2615CE1C18088637A7F1 S1131A8000A10026174AA700A10027F0200EBD00E0 S1131A90C7BD07754D27037E0B57DE8E09DF88DF30 S1131AA084CE1B99BD0887BD0907DFC8BD00BF16DA S1131AB0271CBD0775968E26E8968F811025E29720 S1131AC00C800E24FC40800E9B0C970D2008864849 S1131AD0970C8638970DC6CE86FFDB899988250337 S1131AE07E031F9782D783CE1B60BD0887BD09077D S1131AF0DFC8BD00BFCE1A4881592724814127047D S1131B00814E26E3CE0D71FF0133CE19F8814127B2 S1131B100FCE0D71FF012DFF0131FF012FCE19688A S1131B204FA70008DF7ADE822B058C1C7C2BB1DFEB S1131B3082967AD67BBD02FEBD0842D683D07B96C0 S1131B4082927ABD1736CE1BA8BD0887CE0887FFC0 S1131B500113BD04F286BD9704CE050EDF057E0396 S1131B604A57414E542053494E2D434F532D54410F S1131B704E2D4154CE000D0A0C5752495454454E33 S1131B80204259205249434841524420572E20575D S1131B9045494C414E44AE0D0A005445524D494E00 S1131BA0414C2057494454C80020425954455320BD S1131BB0465245C50D0A0D0A4D49545320414C5413 S1131BC0414952203638302042415349432056453A S1131BD05253494F4E20312E312052455620332E38 S1131BE0B20D0A2D2D4B434143522DAD0D0A434FE7 S1131BF050595249474854203139373620425920E8 S1131C004D49545320494E43AE0D0A004D454D4FA6 S10C1C1052592053495AC5000041 S10400F30008 S9

19 years, 8 months

1
0
0 0

My first Mac

by cclist＠sydex.com

Yeah, no kidding--someone game me a Mac 6100/60. Not very exciting, but I've upgraded the memory to 40 MB and added a 4GB hard disk from parts in my hellbox. So, does anyone have any first-hand experience with Linux on one of these critters? Is it worth the installation trouble? Cheers, Chuck

19 years, 8 months

8
16
0 0

Recovering Cassette Tape Records

by lee＠geekdot.com

After a bit of a ponder this should be about as fast as you can get without putting multiple statements on one line .. 1 GOTO 5 2 WAIT A,D,D 3 POKE B, PEEK(C) 4 GOTO 2 5 A=61456 6 B=61441 7 C=61457 8 D=1 9 GOTO 2 .. if multiple statements per line are allowed then this should be faster .. 1 A=61456:B=61441:C=61457:D=1 2 WAIT A,D,D:POKE B,PEEK(C):GOTO 2 Lee.

19 years, 8 months

7
8
0 0

Needed: 80micro magazine

by evan＠snarc.net

I'm looking for the Sept. '83 issue, specifically the article on p. 272 called "Portable Word Processor"... can anyone help me?

19 years, 8 months

2
3
0 0

My first Mac

by compoobah＠valleyimplants.com

>> Does it pop up saying the disk needs to be initialized? Are you sure >> it's >> HFS? I'd first give Disk First Aid or some similar program a go at it. Start up DFA first and then insert the disk and scan it. Try covering the HD hole, also- 800k Macs could format 1.44s at 800k which could confuse a newer machine. You might be sunk, though, if that's the case, as some 800k drives don't magnetize the disk strongly enough and it is unreadable after several years.

19 years, 8 months

3
2
0 0

any interest in a teal SGI Indigo 2?

by chrism3667＠yahoo.com

I have at least a couple I need to get rid of. Too much stuff. No keyboards or mice (they take the regular ps/2 type though), no OS, probably busted drive door hinges, somewhat scuffed up. They weigh about 40 lbs, so keep that in mind. Free otherwise. E-mail me offlist please. __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

19 years, 8 months

1
0
0 0

Recovering Cassette Tape Records

by grant＠stockly.com

I'm pretty confused right now. I wrote a small basic program to dump my cassettes into the computer. 1 IF (1 AND PEEK(61456)) = 0 THEN POKE 61441, PEEK(61457) 2 GOTO 1 61441 - ACIA DATA PORT 61456 - KCACR STATUS PORT 61457 - KCACR DATA PORT I'm not checking if the ACIA is ready for data, because when reading at 300bps and transmitting at 9600 we should never have to. Why am I getting strange results below? The only thing I can think of is that it is somehow missing every other byte from the KCACR. Does anyone see anything wrong with the basic program? All 500 lines returned are the exact same length and they all start with 13. 1300D603EAFE3A00880C8 13000000000000000000C ... 1310452E25D34F0FEE5CC 1310C71943CF143316541 Missing every other byte? Maybe the 680 and it's basic isn't fast enough for my program? I'm just guessing that S1 and 13 are supposed to be there... S113_0_0_D_6_0_3_E_A_F_E_3_A_0_0_8_8_0_C_8 On top of all this, I'm having a hard time understanding the format. This is a good line: 1 2 3 4 5 6 7 8 9 10 11 12 13 S1 13 0000 0D 76 00 F3 7E 18 F9 7E 03 3C 00 00 48 38 00 2C 7E S1 means its a data record, 13 is the byte count, 0000 is the address, and 7E is the checksum. So what are the mystery bytes? How do you get 13 data bytes and still have a place for all of the rest? 13 is supposed to include the checksum! The checksum is the one's compliment of the sum of the all bytes except S1 and the checksum itself. FF-(13+0D+76+F3+7E+18+F9+7E+03+3C+48+38+2C)=7E So 7E is the checksum. I want to know where all those bytes go! :( Grant

19 years, 8 months

3
4
0 0

TTL 7400's Available

by technobug＠comcast.net

> Cleaning out things and came across 40+ tubes (24/tube) of TTL 5400 > Quad Nand Gates (Mil version of the 7400). Free for postage. > > Here's your chance to build your computer from scratch :oD > > CRC 'Tis all gone... CRC

19 years, 8 months

3
2
0 0

Shipping company moveit.com

by legalize＠xmission.com

I'm using them for a dovebid sale and while things are scheduled to be delivered tomorrow (knock on wood), so far I've been pretty unimpressed with moveit.com. They haven't been very good at communicating important details like MY SHIPPING ADDRESS, when the shipment would be made, how payment was to take place, etc. They say they do a love of business through dovebid, and while that may be so, I don't think I would use them again in the future compared to my experiences with cratersandfreighters.com. Has anyone else used these guys? What was your experience? -- "The Direct3D Graphics Pipeline" -- DirectX 9 draft available for download <http://www.xmission.com/~legalize/book/download/index.html> Legalize Adulthood! <http://blogs.xmission.com/legalize/>

19 years, 8 months

2
1
0 0

HP-97 Manual

by Reber48035＠aol.com

Hi, I'm finding inconsistencies between the HP-67 & HP-97. I'm looking for an HP-97 Manual and saw a note from Joe that stated Mike Haas found one. Is it for sale? Gregg

19 years, 8 months

2
1
0 0

Altair 680 CSAVE Problems!@ : (

by swtpc6800＠comcast.net

Here is my copy of Altair 680 BASIC. I never owned an Altair, I bought this for my SWTPC 6800. The BASIC and manuals are here. http://www.swtpc.com/mholley/Altair/Altair_Basic.htm Michael Holley > Date: Mon, 01 Jan 2007 00:12:12 -0900 > From: Grant Stockly <grant at stockly.com> > Subject: Altair 680 CSAVE Problems!@ : ( > To: altaircomputerclub at yahoogroups.com, cctalk at classiccmp.org > Message-ID: <5.2.1.1.0.20061231234847.03956f20 at pop.1and1.com> > Content-Type: text/plain; charset=us-ascii; format=flowed > > I'm having a ton of trouble saving a program on a cassette tape using > Altair 680 basic. Was there a KCACR basic made without the CSAVE > command? My basic appears to have a CSAVE command, but it won't accept > the > name!!!!! : ( >

19 years, 8 months

2
1
0 0

My first Mac

by trag＠io.com

>Date: Mon, 01 Jan 2007 21:12:47 -0800 >From: "Chuck Guzis" <cclist at sydex.com> >Yeah, no kidding--someone game me a Mac 6100/60. Not very exciting, >but I've upgraded the memory to 40 MB and added a 4GB hard disk from >parts in my hellbox. > >So, does anyone have any first-hand experience with Linux on one of >these critters? Is it worth the installation trouble? As long as you have a 6100, you should have a look at this page: <http://www.kan.org/6100/>. It has a wealth of information all aimed at the 6100 specifically. Jeff Walther

19 years, 8 months

1
0
0 0

Network question

by cclist＠sydex.com

I'm beginning to wonder if it's time I upgraded my home network. The NICs on most of the machines are 100BaseT, with the odd old machine sporting a 10BaseT. But it's the hubs I wonder about--two old National Semi 6-port Datamover 10BaseT units coupled together with a 10Base2 (coax) link. It's that coax that I dread replacing--it goes between floors and snaking it through the walls was a real chore. My DSL speed is 1.6Mbps, so I'm thinking that there's little reason to upgrade the setup. Am I thinking correctly or am I likely to see an improvement in internet access speed if I upgrade? Cheers, Chuck

19 years, 8 months

14
22
0 0

Archive your Apple floppies at the W6TRW swap meet, January 2007

by adamg＠pobox.com

ARCHIVE YOUR APPLE FLOPPIES AT THE W6TRW SWAP MEET, JANUARY 2007 Even if your Apple IIe is long gone, you'll soon have a chance to get at your old data again, when Device Side Data (www.deviceside.com) holds the second public demonstration of a new USB floppy interface. USB floppy drives are widely available, but those currently on the market only support 3.5" disks. The new interface, due to be released later this year, connects to 5.25" drives. It will also allow the owners of modern computers to read a variety of old disk formats that ordinary floppy controllers no longer support. The demo will take place on Saturday, January 27th, 2007, at the famous W6TRW swap meet in Redondo Beach, California. Attendees are invited to bring along a few disks and have image copies made. The final product will read many disk formats, but the prototype only reads Apple II disks, so please leave your IBM or CP/M floppies at home for now. The W6TRW swap meet runs from 7 AM to 11:30 AM in the Northrop Grumman parking lot near the intersection of Aviation and Marine in Redondo Beach. There is no fee to attend. Once there, look for the spinning disk in row C. Besides Device Side Data, many other vendors will also be present, with a wide range of equipment for sale. This is an outdoor event and will proceed regardless of weather. Please carry your disks in waterproof bags in case of rain.

19 years, 8 months

1
0
0 0

HP 7200A Plotter and DEC VT50 terminal

by wacarder＠earthlink.net

Does anyone out there have a Hewlett Packard 7200A plotter (made around 1972) or a DEC VT50 (not VT52) terminal? I am looking for both of these items for my classic computer center. Thanks, Ashley Carder http://www.woffordwitch.com

19 years, 8 months

1
0
0 0

high school and timesharing

by charlesmorris＠hughes.net

"Rick Bensene" <rickb at bensene.com> wrote: >We had quite a bit of fun writing little programs which would wait for a >specific time (during other people's classes), and then "crash" the >system at that time. Eventually, we got caught. This reminds me of an interesting phenomenon we discovered in 1974... the high school had an ASR-33 connected via a leased data line (telephone with acoustic coupler) to a PDP-8/E running TSS/8 at Clemson University, 60 miles away. I can't remember exactly what the code was any more, but it was a very simple patch -we would deposit a mere three words at location 307 (octal) and execute it (ST 307), and the terminal would log on another job. So you'd have two accounts open simultaneously on the same TTY! And if you logged off one account the other would still be open so you couldn't log off both... they'd have to reboot the system to kill it. Any TSS/8 gurus know how we might have done this? We also "inadvertently" deleted the contents of one of the library DECtapes once... there was a "ZAP" command that zeroed out the tape, so naturally we would type in "R ZAP" frequently, and get the expected "WRITE LOCKED" error. One day, though, it actually did it =:^0 Guess the operator forgot to flip the write lock switch! -Charles

19 years, 8 months

5
6
0 0

Network question

by Billy.Pettit＠wdc.com

Michael B. wrote: In the case of a really old system like that, it doesn't matter what the network is - the network will never be the problem, unless I use bongos as the transport mechanism. Mike ----------------- I had a computer like that once... Billy

19 years, 8 months

1
0
0 0

Exatron Stringy Floppy's

by billdeg＠degnanco.com

----- Link to pics for Exatron Stringy, in use on a TRS 80 Model I: http://vintagecomputer.net/tandy/trs80_1/exatron_stringy_floppy/ -----

19 years, 8 months

1
0
0 0

Recovering Cassette Tape Records

by lee＠geekdot.com

> Maybe the 680 and it's basic isn't fast enough for my program? This is quite possible as interpreting decimal numbers takes a fair bit of processing. You may like to try this .. 1 A=61456:B=61441:C=61457:D=1:E=0 2 IF (D AND PEEK(A)) = E THEN POKE B, PEEK(C) 3 GOTO 2 .. which should speed things up a bit. Lee.

19 years, 8 months

1
0
0 0

Addition to cassette post earlier and 6800 assembler questions

by grant＠stockly.com

I just modified my program to get rid of the polling. It did not really speed up the display of characters. ; ) I can now see the full records with some duplicated digits here and there. Its interesting that the program below free running can only process characters at 300bps 1 POKE 61441, PEEK(61457) 2 GOTO 1 At a 500Khz clock thats over 1000 clock cycles per loop. SO THIS IS HOW Micro-Soft got started with slow software??? ; ) So any suggestions on getting started QUICKLY with 6800 assembler? Maybe one that outputs in Motorola punch tape format??? I want to archive Altair 680 KCACR basic before anything else happens to this tape. I had about 5-6 failed loads this weekend and I don't want to risk loosing this KCACR basic! : ( Grant

19 years, 8 months

1
0
0 0

My first Mac

by chrism3667＠yahoo.com

Yellow Dog is the most polished distro FWIU. There are older versions of Mandrake too. Would you get gcc though I aks myself. Funny...Im not getting an answer --- cctalk-bounces at classiccmp.org <pat at computer-refuge.org> wrote: > On Tuesday 02 January 2007 00:12, Chuck Guzis wrote: > > Yeah, no kidding--someone game me a Mac 6100/60. Not very exciting, > > but I've upgraded the memory to 40 MB and added a 4GB hard disk from > > parts in my hellbox. > > > > So, does anyone have any first-hand experience with Linux on one of > > these critters? Is it worth the installation trouble? > > I ran a 6100/60 with a NuBus ethernet card in the PDS slot (with the > appropriate PDS->nubus adapter) using Debian with some old mklinux > kernel, as a NATing firewall with good success, a few years ago. > Support for newer kernels is pretty much non-existant (I'm not sure if > they support past 2.2; I know they don't go past 2.4 kernels), so you'd > have to go with an appropriately vintage Linux distribution. > > Pat > -- > Purdue University ITAP/RCAC --- http://www.rcac.purdue.edu/ > The Computer Refuge --- http://computer-refuge.org __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

19 years, 8 months

1
0
0 0

Floating Point Systems FP-03

by useddec＠gmail.com

> > I have one of these and I'm looking information on it. I might be willing > to trade or sell it. If you have any info or interest, please contact me off > list. Thanks, Paul

19 years, 8 months

1
0
0 0

"Thinking Machines: The Creation of the Computer"

by legalize＠xmission.com

I just watched this from a bittorrent; it had some nice vintage info and footage in it, so check it out! -- "The Direct3D Graphics Pipeline" -- DirectX 9 draft available for download <http://www.xmission.com/~legalize/book/download/index.html> Legalize Adulthood! <http://blogs.xmission.com/legalize/>

19 years, 8 months

1
1
0 0

Apple IIe Motherboard X-Ray

by compoobah＠valleyimplants.com

> And with so much radiation being shot onto metals and like, does it > became radioactive? > > I have some MSX here that I want to "give it a shot" (pun intended) > hehehe > Remeber- two types of radiation: particle (Alpha, Beta, neutrons, protons) and electromagnetic (gamma, X-ray, radio, light, etc). The particles can make things radioactive, the electromagnetic radiation cannot.

19 years, 8 months

2
1
0 0

Closet-cleaning

by rcini＠optonline.net

All: The SB6120 and the TI74 have been spoken for as of now. Thanks for your interest. Dan Veeneman.do you have another email address? I got an error >from your receiving mail server rejecting my reply. I'll also try sending >from another account. Rich Rich Cini Collector of classic computers Lead engineer, Altair32 Emulator Web site: <http://highgate.comm.sfu.ca/~rcini/classiccmp/> http://highgate.comm.sfu.ca/~rcini/classiccmp/ Web site: http://www.altair32.com/ /***************************************************/

19 years, 8 months

2
1
0 0

Network question

by compoobah＠valleyimplants.com

Fred Csin wrote >> Keep it in historical context... Bongos were a significant speed >> increase over smoke signals. > > ?? > ~1100 feet per second v 186,000 miles per second > > But bongos could operate without line of sight, > and with or without ambient light. > Well, smoke signals may have lower latency, but bongos would have higher possible switching speeds and so better bandwidth. Things don't change much, do they? Scott

19 years, 8 months

4
3
0 0

TCP/IP Testing help, Round 2

by dm561＠torfree.net

---------------Original Message: Date: Mon, 1 Jan 2007 01:03:53 -0500 (EST) From: der Mouse <mouse at Rodents.Montreal.QC.CA> Subject: Re: TCP/IP Testing help, Round 2 > The standard Windows telnet client doesn't do that by default, so you > will type but not see your characters. That's a project for a > different day. What, fixing Windows telnet to actually conform to the spec? Yes, that's quite a project. :-) ---------------Reply: Gimme a break; this "project" merely involves getting the free HypertermPE upgrade from Hilgraeve. Fixes the local echo bug and works just fine. mike

19 years, 8 months

1
0
0 0

Network question

by compoobah＠valleyimplants.com

If it isn't hampering you, I wouldn't mess with it, but > But it's the hubs I wonder about--two old > National Semi 6-port Datamover 10BaseT units coupled together with a > 10Base2 (coax) link. It's that coax that I dread replacing--it goes > between floors and snaking it through the walls was a real chore. > Keep in mind that this time around it won't be so hard- just attach two nylon strings to the coax, pull it out, attach your fiber or UTP to one of the strings and pull it up. Leave the other string in the wall if you ever need a second line.

19 years, 8 months

1
0
0 0

SCSI CD cabinets

by tpeters＠mixcom.com

At 03:45 AM 12/31/2006 -0500, you wrote: >On 12/31/06, Chuck Guzis <cclist at sydex.com> wrote: >>I'm just sorry that I gave away my old 7 CD unit. > >I have something like that I was thinking about digging out... it's a >table-top unit, with a 2X drive and a 7-disc internal changer. I was >contemplating seeing if I could replace the transport with a SCSI >DVD-ROM unit just for fun, as 7 CDs isn't all that interesting. I still have this slick Nakamichi 7 disk scsi CD changer with audio outputs on the back. Something like MBR-7?? I wish I had a killer application for it. I wonder if it has enough front panel control to use it as an audio CD player without connecting to the scsi bus at all-- something like I'm doing with my NEC Multispin 6x caddy type CD drive. I have it connected to my stereo, via coax digital audio out. I only have 4 or 5 caddies laying around though. >As for the OP's question, if _I_ had a 7 *transport* box, I'd consider >replacing most or all of the transports with SCSI DVD-ROMs for a >decent amount of archival storage readback. I could back interesting >things up to DVD-R on a single writer, then keep the most important >stuff available for readback. It's not as much storage as even a >moderate-sized RAID array, but it isn't likely to suffer from >headcrashes, etc. > >-ethan [Commentary] ...nothing banned in Singapore can be all bad. --Cosma R. Shalizi, on The Economist --... ...-- -.. . -. ----. --.- --.- -... tpeters at nospam.mixcom.com (remove "nospam") N9QQB (amateur radio) "HEY YOU" (loud shouting) WEB ADDRESS http//www.mixweb.com/tpeters 43? 7' 17.2" N by 88? 6' 28.9" W, Elevation 815', Grid Square EN53wc WAN/LAN/Telcom Analyst, Tech Writer, MCP, CCNA, Registered Linux User 385531

19 years, 8 months

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Closet-cleaning

by rcini＠optonline.net

All: I was doing some closet-cleaning in the shop this weekend and came across a few things I have no use for any longer or were bought for projects that never got off the ground (and probably won't). If anyone's interested in anything, please email me off list. Shipping to the US only is not included. Trades considered. * Seagate 9gb full-height SCSI hard drive (new but unused/untested); ST940800N: $10 * Compaq-badged external DLT drive 5/10gb (SCSI-I; working last time used): $25 * Panasonic 616 phone system with 4 keysets (untested but bought working). I have manuals in electronic form: $50 * STD-BUS 14-slot card cage with assortment of cards (2 analog, 2 digital, 2 relay, Z80 CPU and DSKY. May have other cards in it). I think I have docs for most of the cards and a disassembly of the ROM. NASA surplus. All cards should work but it was some sort of data acquisition or process control system so I never finished fully decoding the ROM to see what it did. $75 * SpareTimeGizmos SB6120 PDP-8 fully built and working in a Lucite case. All that's needed is 5v adapter. Includes CF adapter and 16mb CF card with four disk images. $250 (reflects actual costs of partial kit and parts I bought). * TI-74 BASIC-Calc system. Includes unit, PC324 printer and AC adapter. I will also include CD of random information and programs that I had collected. $40. I'm looking specifically for a Tandy CM-1 color monitor for my Tandy 2000 and a small self-contained PC/104 SBC (stand-alone -- not for use with a backplane) with at least a 486 CPU. I'm also looking for an older Mac Mini (1.42ghz version with Airport/Bluetooth). Thanks. Rich Rich Cini Collector of classic computers Lead engineer, Altair32 Emulator Web site: <http://highgate.comm.sfu.ca/~rcini/classiccmp/> http://highgate.comm.sfu.ca/~rcini/classiccmp/ Web site: <http://www.altair32.com/> http://www.altair32.com/ /***************************************************/

19 years, 8 months

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SCSI CD cabinets

by tpeters＠mixcom.com

Oh my, what am I going to do with these MDI SCSI CD boxes? I have 3 or 4 of them, each one containing seven CD-ROM drives, a power supply, and some kind of logical unit controller, so all 7 drives appear a LUNs under one SCSI address. The drives are Toshiba XM-5301B, a 4x tray-type (doesn't need caddies) that works sideways or in the more usual orientation. Specs here, from http://www.netcomdirect.com/tosxm4xfonco.html CD-ROM Mode 1 -data discs CD-ROM Mode 2 - data discs CD-DA audio discs CD-DA/ROM - Mixed mode/combined CD-ROM XA and Photo CD (Single and Multisession) CD-Bridge (White book, Video CD) CD-I, CD-I ready The cabinets are 17" but with ears for std rack mount, 7 inches high, depth behind the rack 20 inches. Anyone (local) want some? Anyone got any ideas what to DO with them? -Tom [Love] Once he drew With one long kiss my whole soul thro' My lips, as sunlight drinketh dew. --Alfred Tennyson (1809-1892) Fatima --... ...-- -.. . -. ----. --.- --.- -... tpeters at nospam.mixcom.com (remove "nospam") N9QQB (amateur radio) "HEY YOU" (loud shouting) WEB ADDRESS http//www.mixweb.com/tpeters 43? 7' 17.2" N by 88? 6' 28.9" W, Elevation 815', Grid Square EN53wc WAN/LAN/Telcom Analyst, Tech Writer, MCP, CCNA, Registered Linux User 385531

19 years, 8 months

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Altair 680 CSAVE Problems!@ : (

by grant＠stockly.com

I'm having a ton of trouble saving a program on a cassette tape using Altair 680 basic. Was there a KCACR basic made without the CSAVE command? My basic appears to have a CSAVE command, but it won't accept the name!!!!! : ( I'm sending this to two groups. I've been at this problem for hours now... : ( I'll post a transcript below. Let me know what I'm doing wrong! : ( -------------------- .J FD00 (cassette bootstrap rom address) (basic loading) (basic loaded) .J 0000 (run basic...) MEMORY SIZE? TERMINAL WIDTH? 80 WANT SIN-COS-TAN-ATN? YES 9604 BYTES FREE MITS ALTAIR 680 BASIC VERSION 1.1 REV 3.2 --KCACR-- COPYRIGHT 1976 BY MITS INC. OK 10 PRINT "HELLO" 20 GOTO 10 CSAVE A ?TM ERROR OK -------------------- TM is a type mismatch error. SM is for a command it doesn't understand. Watch... -------------------- CSAVE A ?TM ERROR OK CSAVE ?SN ERROR OK AHHHH! ?SN ERROR OK AHHHH! A ?SN ERROR OK -------------------- Am I wrong assuming that because it gives me a TM error instead of SN that it is "trying" to work? I get the same things for CLOAD... How in the world are you supposed to save something to tape! : ( If I have the wrong version of basic, anyone have the right one? What will it take for me to get a copy! : ) (first smile in this e-mail... ; ) ) Thanks, Grant

19 years, 8 months

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Altair 680 CSAVE Problems!@ : (

by Alwrcker82＠wmconnect.com

Hi, sometime you must use "A" to save a file, (CSAVE "A") or lower case, worth a try. Al DePermentier

19 years, 8 months

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Cray-I PCB for display at Goodwill

by cclist＠sydex.com

Sometimes Goodwill has interesting stuff. Here's one you don't see every day: http://shopgoodwill.com/viewItem.asp?ItemID=2423761 Cheers, Chuck

19 years, 8 months

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HP-3000 (was: HP HP-2117F on ebay)

by Lee.Courtney＠windriver.com

3000 Series 40, and early 1980s Micro3000XL. Lee C. > -----Original Message----- > From: cctalk-bounces at classiccmp.org > [mailto:cctalk-bounces at classiccmp.org] On Behalf Of Richard > Sent: Thursday, December 14, 2006 10:08 AM > To: General Discussion: On-Topic and Off-Topic Posts > Subject: HP-3000 (was: HP HP-2117F on ebay) > > > Speaking of old HP minis, does anyone have an HP-3000 in > their collection? Not the newer ones, but the ones from the > mid to late 70s. > -- > "The Direct3D Graphics Pipeline" -- DirectX 9 draft available > for download > <http://www.xmission.com/~legalize/book/download/index.html> > > Legalize Adulthood! <http://blogs.xmission.com/legalize/> >

19 years, 8 months

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Exatron Stringy Floppy's (was Re: SCSI CD cabinets)

by aliensrcooluk＠yahoo.co.uk

--- aliensrcooluk at yahoo.co.uk wrote: > **>> snip <<** > > Yes, you are quite right Chuck. > > The ESF (Exatron Stringy Floppy) drive, > advertised on the back of most of my issues > of 80 Microcomputing, didn't last long despite > the heavy advertising. > > As I understand it, the folks at Exatron hoped > it would become the new standard for storing > data. Unfortunately the 3.5" floppy disk (or > one of similar size) was invented around the > same time and, obviously, became the new > standard. > The ESF was about x10 faster than a cassette > and the floppy was much more than that > (atleast x20?). > > As I understand it the ESF's broke down after > a year or so. The thin layer of stuff (i forget > now, some ferrous material) which was coated > onto the erm... mylar (?) started flaking off > rendering the ESF's useless. > > > I'm sure I read an article on ESF's about 6 > months ago... hense why I know a bit about > them. It may have been in an issue of 80 > Microcomputing. > > > Regards, > Andrew D. Burton > aliensrcooluk at yahoo.co.uk > > Yes, I'm replying to my own message! I did a quick search on google and came up with 300 links (searching for "Exatron Stringy Floppy"). Unfortunately, I was unable to confirm what the ESF's were made of. The sources also state different increase read/write rates over cassette drives. Here are some of the better links (including pics of the unit and ESF): http://www.webweavers.co.nz/system-80/hardware_acces sories.htm http://www.digibarn.com/collections/devices/stringy- floppy/index.html http://en.wikipedia.org/wiki/Stringy_Floppy Regards, Andrew D. Burton aliensrcooluk at yahoo.co.uk

19 years, 8 months

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Network question

by chrism3667＠yahoo.com

Bongos? Babaloonet? LOL LOL LOL --- cctalk-bounces at classiccmp.org <mbbrutman-cctalk at brutman.com> wrote: > Zane H. Healy wrote: > >> Even with 5Mbps cable modem, my slowest connection inside is still > >> faster that my connection to the outside world. > > > > You obviously don't have any really old systems on your network. I'm > > still at 1.5Mbps, and have systems on my network that can't keep up with > > that. > > > > Zane > > > > > The context was the networking gear, not the machines. I think my PCjr > is fairly slow. > > In the case of a really old system like that, it doesn't matter what the > network is - the network will never be the problem, unless I use bongos > as the transport mechanism. > > > Mike > > > __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

19 years, 8 months

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Exatron Stringy Floppy's (was Re: SCSI CD cabinets)

by aliensrcooluk＠yahoo.co.uk

--- Chuck Guzis <cclist at sydex.com> wrote: **>> snip <<** > > You know, I've never had anyone ask about converti ng > one of the Brier > flopticals (I've got the drive) or the Drivetech > floppies, much less > an Amlyn or Exatron stringly floppy. I can only > conjecture that the > media didn't last very long. > **>> snip <<** > Cheers, > Chuck > Yes, you are quite right Chuck. The ESF (Exatron Stringy Floppy) drive, advertised on the back of most of my issues of 80 Microcomputing, didn't last long despite the heavy advertising. As I understand it, the folks at Exatron hoped it would become the new standard for storing data. Unfortunately the 3.5" floppy disk (or one of similar size) was invented around the same time and, obviously, became the new standard. The ESF was about x10 faster than a cassette and the floppy was much more than that (atleast x20?). As I understand it the ESF's broke down after a year or so. The thin layer of stuff (i forget now, some ferrous material) which was coated onto the erm... mylar (?) started flaking off rendering the ESF's useless. I'm sure I read an article on ESF's about 6 months ago... hense why I know a bit about them. It may have been in an issue of 80 Microcomputing. Regards, Andrew D. Burton aliensrcooluk at yahoo.co.uk

19 years, 8 months

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Thicknet

by tpeters＠mixcom.com

Anyone have an urgent need for 300' of thicknet? Never been used, approx 117m (according to the writing on the spool) with one cut end and one N-connector on the other end. It's 50ohm cable right? Maybe I can use it for amateur radio, if I keep it indoors away from the UV. [Oops] It's a question of whether we're going to go forward into the future, or past into the back. --Dan Quayle --... ...-- -.. . -. ----. --.- --.- -... tpeters at nospam.mixcom.com (remove "nospam") N9QQB (amateur radio) "HEY YOU" (loud shouting) WEB ADDRESS http//www.mixweb.com/tpeters 43? 7' 17.2" N by 88? 6' 28.9" W, Elevation 815', Grid Square EN53wc WAN/LAN/Telcom Analyst, Tech Writer, MCP, CCNA, Registered Linux User 385531

19 years, 8 months

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Build your own Apollo Guidance Computer

by Billy.Pettit＠wdc.com

Brent Hilpert wrote: I always kind of liked the idea of making an entire processor out of just one basic gate/IC type. ------------------------- Didn't Seymour Cray do this on one of his later machines? The Cray 2? Seems like it was a 5 input And gate. But then he always did like to minimalize. The 6600, his first big iron, used one transistor type tied together in different ways to make gates, flip flops and timing circuits. He used circles and squares to denote gates - but whther they were And or Ors depended on what fed them. Ah, twas fun to work with. And I loved the esthetics of the logic diagrams. All those little squares and circles had a kind of magic to them. Billy

19 years, 8 months

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Build your own Apollo Guidance Computer

by trag＠io.com

>Date: Tue, 19 Dec 2006 10:30:36 -0700 >From: Richard <legalize at xmission.com> >In article <458726D7.17136.1434D6AA at cclist.sydex.com>, > "Chuck Guzis" <cclist at sydex.com> writes: > >> But, given that the original uses RTL and core, what's the point of >> building one in LSTTL? > >Is it even possible to build with RTL parts anymore? > >I guess you'd have to do it PDP-8 style with discrete transistors? Is there a guide somewhere to the different families of logic, such as RTL, TTL, LSTTL (never heard of that one) and CMOS? I was choosing some simple logic components for my IIfx SIMM project the other day and was somewhat bewildered by the choice of input/output levels. Also, some are Schmidt Triggered? My understanding extends to the idea that there are differences in how they (at what voltage) interpret the low and high states but beyond that, I'm ignorant. Anyway, before I go on a Google hunt (which will probably turn up all the surplus electronics suppliers and pricegrabber links first) does anyone already know of a nice educational source on the topic? Jeff Walther

19 years, 8 months

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Cray-I PCB for display at Goodwill

by wbblair3＠yahoo.com

> > Sometimes Goodwill has interesting stuff. Here's one you don't see > > every day: > > > > http://shopgoodwill.com/viewItem.asp?ItemID=2423761 > > > > Cheers, > > Chuck > > > Thanks for the heads up and I bided on the item for the museum and it's at > $21 right now. > John These are sold by the National Atomic Museum on Kirtland AFB in Albuquerque, NM: http://www.atomicmuseum.com/store/ProductItem.cfm?Category=7 I bought mine (016 of 340) about eight years ago for $50 when I visited the museum. I'm amazed they haven't sold all 340 by now. They now sell for $58 new to give you an idea of what your maximum bid should be if you don't just buy a new one from the museum. The one in the auction has been re-framed. I re-framed and re-matted mine but in a much nicer black frame than the one in the auction (frame only cost me $5 on sale at Target due to superficial damage on its BACK side). I, also, made some new labels with far more info about the machine and specific board. ASCI Red, the first tera-ops supercomputer was recently decommissioned at Sandia (on Kirtland): http://www.sandia.gov/ASCI/Red/ I emailed the National Atomic Museum to suggest that they get some boards and frame them because of the significance of the tera-ops barrier. I received no response. __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

19 years, 8 months

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RoHS question

by Watzman＠neo.rr.com

Almost all new equipment has to comply with "RoHS" (Reduction of Hazardous Substances) requirements, which among other things means it's made with lead-free solder. Enforcement is stronger in Europe than in the US, but in any case industry is cleary moving in that direction even when and where not absolutely required by law. Question: If one is repairing RoHS compliant equipment, with respect to functionality only is there a problem with using conventional tin/lead solder? I'm not asking if it's legal or "environmentally friendly", I'm asking if mixing the lead free solder and conventional tin/lead solder will cause functional problems (for example, any kind of problems similar to those which we used to see when someone repaired electronic equipment using plumbing acid flux solder). Also, if one wants to acquire and use RoHS compliant solder, are there any changes that someone accustomed to conventional tin/lead solder needs to make to their soldering technique? And I guess I should also ask the reverse question from the paragraph above: Are there any issues in using lead-free RoHS compliant solders on equipment originally built from tin/lead solder? Are there any other implications of RoHS that a casual classic computer and electronics enthusiast should know about, in either direction?

19 years, 8 months

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Apple-1 History?

by dave06a＠dunfield.com

Hi guys, I've been having an esclating correspondance with a chap named "Murray Balascak" (anyone know him?) - who contacted me regarding his displeasure with my mention of the Apple-1 on the Apple-II page of my site - here is what I have posted as part of my introdiuction to the Apple-II: -------------------------------------------------------------------------------------------------- In 1976, Steve Wozniak and Steve Jobs formed the Apple Computer Company, and built a home computer they called the "Apple 1" in their garage. Although it required the users to provide their own cabinet, power supply, keyboard and video monitor, it didn't require a separate terminal, and a simple BASIC interpreter could be loaded with an optional cassette interface. Although it required a fairly technical user to complete the system and make it usable, about 200 Apple 1s were sold in the first year. The following year (1977), Apple refined the design, providing a keyboard and power supply and packaging the machine in a attractive low-profile plastic cabinet with simple connections for the video monitor and tape storage. Now - anyone who could plug two connectors together could use this computer. The result, called "Apple 2" was one of the most successful early personal computers, and sold many thousands of units. ------------------------------------------------------------------------------------------------- In Mr. Balascaks first correspondance, he stated that the KIM-1 was a far better machine than the Apple-1, asked if I had succumbed to "the relentless revisionism of the brand zealots?", and demanded that I "correct the above reference to show the machine's irrelevance". In his second correspondance, he stated that I am spreading "Apple propaganda", again stated that the KIM-1 was better, sold in higher quantities and cheaper (I still do not know what the KIM-1 has to do with an Apple-II page). In his third correspondance he acqused me of "posting lies and being worse than useless by corrupting history into fiction". Again, he stated that the KIM-1 was a far better machine and much cheaper. In his last email, he indicated that he believes I am responsable for the degradation of the internet and the reason that it cannot be trusted as a source of information. I don't know where this is coming from - I believe my reference to the Apple-1 is accurate considering it's brevity - Apple was formed in 1976 and operated out of Jobs basement. The Apple-1 was sold through the homebrew computer club as well as a few of stores, and although I do not have confirmed numbers of sales, I believe it was around 200 units. It was never my intention to make a page about the Apple-1 (I don't have one, and I only feature systems on my site which are in my collection)... I believe at some point someone asked why I didn't mention the Apple-1 so I added this one paragraph as part of the Apple-II history. I have no other references to the Apple-1 (at least that I can recall) on my site. In all of my responses to him, I indicated that I am unwilling to change the site based on the hearsay of one individual, especially when that person has an apparent (in my opinion based on correspondance received) bias for or against the material being questioned, however I would be happy to revise the site in response to any documented facts/evidence he can provide that the material I have is incorrect. All I have received in return is statements about how much better the KIM-1 was (I make no such comparisons on my site), how expensive the Apple-1 and Apple-II were (I post no such prices on my site), and rants about a website that apparently lists Woz as the "inventor of the single-board computer" (I make no such claim on my site). I should probably just ignore it - but the fact that I have been accused of lying and deliberatly posting misinformation is disturbing to me ... So - I throw it to the list - As a background statement showing that Apple existed and sold a predecessor in small volumes for a time before the Apple-II ... Is my posting above non-factual? If so, in what way, and can you provide supporting documentation? Please keep in mind that I do not wish to post a page about the Apple-1, only a single paragraph as a way of introducing the guys who built the Apple-2. Regards, Dave -- dave06a (at) Dave Dunfield dunfield (dot) Firmware development services & tools: www.dunfield.com com Collector of vintage computing equipment: http://www.classiccmp.org/dunfield/index.html

19 years, 8 months

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Computer Music

by john3000＠cox.net

Hi Will, Look for an Apple II with the "Alpha Centauri" (or did they call it "Alpha Syntauri"?) package. It was fantastic! It used two cards from a company named "Mountain Hardware" and was an amazing synthesizer with 5 octave AGO keyboard and waveform design software. It was polyphonic but I don't remember the number of voices. I had the pleasure of using one while at George Mason University in Fairfax Virginia. We bought one (I was a computer center administrator there at the time) for evaluation and then bought more for the music department, and they loved them! If you can find one, it will be a real treasure! I don't remember if I have any recordings, and if I do they would be on cassette tapes that would be nearly 30 years old. I did use a lot of metal tape back in those days, so if the binder on the tape is still good, they may be playable. First, I'll have to see if any of the recordings still exist, and that will have to wait until I'm recovered (bronchitis). Good luck with your project! John At 12/24/2006 04:08 PM, William Donzelli wrote: >I am currently working on a project involving music made with >computers before MIDI. Some aspects and examples might be the old >mainframes playing tunes on band printers, minicomputers making tunes >with RFI, microcomputers controlling analog synthesizers, and so >forth. > >I have no strict timeline on this, but I would like to pull things >together in a few months maximum. > >Things I am looking for: > >1) Recordings of 2nd generation (or even before, if they exist) >mainframes making tunes. There are a few recordings out there, and I >may be getting some help from CHM for more. > >2) A working 1970s era minicomputer with core, probably a PDP-8 or >Nova, that is reliable enough to make a performance. > >3) A 1970s era microcomputer controlling an analog synthesizer. > >4) Outstanding examples of Atari and/or C64s making music. > >5) Leads to artists and musicians that used classic computers in >recordings, famous or not. Decent quality MP3s would be great. > >6) An example of the HP printer (a deskjet?) that contains the musical >Easter Egg, operational. > >7) Any examples of music made by computer algorithms, remixes by >computer, and so forth. Experimental works are welcome. > >8) Any suggestions to expand this. The computers need not be classics, >the music need not be oddball, but the results should be a little on >the weird side (for example, I do not need a Pentium 3 running >Protools making trance). > >While I am not looking to buy any of these machines, I am looking for >examples that are very reliable, and can travel to New Jersey for a >Saturday morning (probably). Appearance is not important, being this >will all take place in a studio. > >There is a very slim chance I can provide the minicomputer, but all my >tapes are lost in limbo, so I doubt it. Being a PDP-8/S, normal PDP-8 >music tapes will not work. There is also a chance I can provide a >Minimoog synthesizer, if someone can provide the microcomputer with >D/A cards (for the control voltages) and some sort of software for >making a tune. > >So please go and think about this, and tell me what you think, and if >you can contribute. Certainly proper credit will be given to those >that can help out, but sorry, no money. I am not getting paid for this >either. > >Thank you for your time. > >-- >Will John *** When replying to this message, please do not delete these *** *** signature lines. Otakon Katsucon HP3000-L @classiccmp.org *** *** DigitalCosplay.com JohnKorbPhoto.com JohnPKorb.com ***

19 years, 8 months

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Multinet vs TCPware

by compoobah＠valleyimplants.com

Been looking at Process Software's stuff- for people who have worked with MultiNet and TCPware, what's the difference? Process doesn't seem to have a comparison between the two, only comparing with UCX. Which is easier for a newcomer to VMS to configure? I know that the issue is with TCP/IP v5.0 on the VAX since the same problems do not occur with an Alpha running VMS v7.3-1-TCP/IP v5.3. The network bogs down with many surplus packets as soon as a telnet connection is opened (doesn't happen with rsh/rlogin).

19 years, 8 months

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Compaq floppy drive compatibility

by chrism3667＠yahoo.com

might be time to polish the ol bifocals mon frere LOL LOL --- cctalk-bounces at classiccmp.org <ard at p850ug1.demon.co.uk> wrote: > > > > are we talking about the same puters lol? > > Ouch!. No we're not... > > I read 'Portable' and 'Plus' in the message text and assumed we were > talking about Apple Macs. What I said applies to those machines... > > -tony __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

19 years, 8 months

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(found on another list) (Free) 4Ds/Challenge XL

by compoobah＠valleyimplants.com

Found this on another list- thought someone might be interested. Hi all, I have a few older Silicon Graphics systems up for grabs if anyone is interested. There's three 4D Predator racks, a deskside 4D/70GT and a Challenge XL. All the machines are complete except for the Challenge which is missing the CPU and memory boards. Except for that everything is there. They also come with a few boxes of parts, cables, keyboards and such. A 17" SGI monitor is also part of the lot. Pictures here: http://web.newsguy.com/AlexPhotos/sgi.html Everything is free if you take them as is. If you only want boards or other parts, I'll charge a small fee for the packaging material and for my time. The machines are located in Montreal, Canada. Thanks. Alex.

19 years, 8 months

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Compaq floppy drive compatibility

by chrism3667＠yahoo.com

are we talking about the same puters lol? --- cctalk-bounces at classiccmp.org <ard at p850ug1.demon.co.uk> wrote: > > > > Before I open up both the Plus and the Portable II, > > can anyone tell me if the floppy drives are swappable? > > Obviously the Plus can't utilize a HD drive, but what > > about the other way around? Much appreciated. > > One thing I'll warn you about is that the ribbon cables may not be what > they seem. They have 20 pin connectors on the end, but some of the > 'wires' don't exist, that position on the cable is solid plasic. Confused > the hell out of me when I was looking isside a Mac+. 'Why is there -5V at > that end of f the cable and the external eject signmal at that end????' I > am told the colour of the 'pin 1' stripe has some significance, but I > don't know the code. > > -tony __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

19 years, 8 months

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Compaq floppy drive compatibility

by chrism3667＠yahoo.com

I had heard somewhere that Compaq used non standard drives, but perhaps that applies to different (newer?) models. --- cctalk-bounces at classiccmp.org <cclist at sydex.com> wrote: > On 30 Dec 2006 at 11:11, Chris M wrote: > > > are we talking about the same puters lol? > > I was wondering the same thing, myself. The Plus is the hard disk > successor to the original Portable. Both have ISA buses and fairly > normal PC peripherals (and lousy keyboards, IMOHO). > > http://utopia.knoware.nl/users/stuurmn/complus.htm > > At worst, adding a new card may require that you use a half-length > card; the card cage for both the plus and portable can accommodate > rather tall 8-bit ISA cards. > > Cheers, > Chuck > > > __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

19 years, 8 months

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Apple IIe Motherboard X-Ray

by grant＠stockly.com

I posted this to CSA2 today. I figured you guys would want to download these files. If you're anything like me, then you're a digital pack rat. ; ) In preparation for cutting my Apple IIe motherboard in half I decided it would help to have an x-ray of the board. This way it will be easy to determine the most efficient cut line. I've included an X-Ray of a Disk II card just for fun. The X-Rays are at 300dpi. I'm not an X-Ray tech so my calibration was a little off. Our resident X-ray guy is gone today. I'm not sure he would be interested in an Apple IIe motherboard any way. ; ) Some areas are dark. By adjusting "Levels" in photoshop you can bring them out. The motherboard received a dose rate of 17.84 R/min for the scans and calibration. About 27 minutes (for 3 scans and a calibration). This would have been a dose of 482 Rad. The Disk II card received the same dose rate, but it was in the vault for the whole time the motherboard was in there. It received radiation for a total of about 32 minutes. 571 Rad. To put it in perspective, if a group of people were exposed to that dose 50-90% would die after 30 days. (90% without intensive medical care). Primary cause of death is internal bleeding and infections. Females become permanently sterile. Motherboard: http://www.stockly.com/images2/061228-Apple_II_80kv6ma35ms36SFD-Cut%20Edges… Disk II: http://www.stockly.com/images2/061228-Disk_II_80kv6ma35ms36SFD-Cut%20Edges.… Any comments? Grant

19 years, 8 months

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OpenVMS VAX 7.2

by josefcub＠gmail.com

Scott, > At 3:41 PM -0800 12/29/06, Scott Quinn wrote: > >I'm running a VAX 4000/200 with OpenVMS 7.2 (Hobbyist V2) on it, and > >I'm having terrible problems with the networking. (DIGITAL > >TCP/IP/UCX v5.0). It seems that there were some bugs in this > >release, but I'm not yet sure exactly how to find the fixes for them > >(and the HP/DIGITAL website doesn't seem to be very helpful). > >Especially when running telnet, the VAX slows to a crawl. What have > >other members with this problem (and no access to newer UCXes at > >work or other locations) done? If you're telnetting into the VAX from Linux, make sure to issue: 'export TERM=vt100' before you connect with the telnet command. The string 'xterm' especially drives your VAX CPU usage through the roof, for some reason I was never told. All I know is that specifying 'vt100' or another terminal type VAX knows will solve that problem easily. Josef -- "I laugh because I dare not cry. This is a crazy world and the only way to enjoy it is to treat it as a joke." -- Hilda "Sharpie" Burroughs, "The Number of the Beast" by Robert A. Heinlein

19 years, 8 months

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OpenVMS VAX 7.2

by compoobah＠valleyimplants.com

I'm running a VAX 4000/200 with OpenVMS 7.2 (Hobbyist V2) on it, and I'm having terrible problems with the networking. (DIGITAL TCP/IP/UCX v5.0). It seems that there were some bugs in this release, but I'm not yet sure exactly how to find the fixes for them (and the HP/DIGITAL website doesn't seem to be very helpful). Especially when running telnet, the VAX slows to a crawl. What have other members with this problem (and no access to newer UCXes at work or other locations) done?

19 years, 8 months

2
1
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MS DOS overlay programming

by mbbrutman-cctalk＠brutman.com

DEC bigots can skip this message safely. :-) I've been working on a TCP/IP stack for my beloved PCjr. There are already TCP/IP stacks that run on it, but that's not the point. Borrowing a page from Tony's book, I decided to write my own so that I could fix the inevitable bugs. Anyway, I'm interested in reducing memory consumption. Any complex code involves tradeoffs between function and performance, and I've been careful, but one thing that is bothering me is the initialization code. I've got a fair amount of code that reads environment variables, talks to the packet driver, and sets up data structures. The nature of the code is that it runs once, and then just sits there consuming memory. Waaay back in history I was a Zbasic user - Zbasic was a fairly nice BASIC dialect/compiler. Zbasic had overlay support, which I used extensively. It wasn't sophisticated, but it did the job. It would be perfect for this code - init everything that I need, and then overlay the init code with the run code. Now 20 years later I'm using Turbo C++ 3.0 for this project, and it has overlay support but it has a more complicated memory manager that goes along with it. I don't have a lot of 'gas' in the code, so going to the VROOOM overlay manager just to overlay my init code is overkill, and will probably require more memory. I was hoping Borland had a simpler mechanism ... Any ideas? The only one I can think of is kind of brute force ... have two apps, one that inits everything and leaves the storage resident, and another that refers to that resident storage. (I was hoping for something simpler in the Borland runtime support.) Mike PS: I'm still looking for a late version of Zbasic .. I had 4.02 and I know that 4.71 was released. I'd love to see what it evolved to, but that's a different topic.

19 years, 8 months

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Compaq floppy drive compatibility

by chrism3667＠yahoo.com

Before I open up both the Plus and the Portable II, can anyone tell me if the floppy drives are swappable? Obviously the Plus can't utilize a HD drive, but what about the other way around? Much appreciated. __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

19 years, 8 months

2
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ebay seller computermkt

by vax9000＠gmail.com

On 12/27/06, Jeff Walther <trag at io.com> wrote: > > > This is a bit off-topic for the thread, but deals with the same > philosophy of selling question. > ... Well, I shopped on ebay for 8250 UART's. I saw 19 pieces listed for $0.75 each. I offered best offer of $0.50 each for all. Of course I was rejected, but to my surprise the price was then raised to $2.75 a piece. I am not sure whether it was a price error or a new model of business. Fortunately I am not so eager to get those chips, and I bought some from others for $0.50 a piece. vax, 9000 > Jeff Walther >

19 years, 8 months

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an ADM-3A cam in tod...ay

by jos.mar＠bluewin.ch

Lucky strike today : 10 swiss francs (7.50 USD) got me a ADM-3a in very reasonable cosmetic state, with the dip-switch cover still intact, and with the optional numeric keyboard. On opening , I saw the unit even included the RG512 graphics option! Not is all well , the crt has a severe case of moulding. This was discussed before, I believe changing the CRT was the only good option ? The unit also does not work. This might have to do with the can of Coke that seems to have been emptied onto the keyboard and surroundings... I will use my normal cleaning procedure of toothbrush and tapwater, and letting things dry naturally. Anyone have suggestions for the specific case of semi-dried Coke ? Jos DReesen

19 years, 8 months

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an ADM-3A cam in tod...ay

by compoobah＠valleyimplants.com

>> >> Mac portrait displays are presumably similarly difficult to get >> replacement >> CRTs for, at least without realigning the yoke (I gather that most >> CRTs don't >> like a change in orientation, although I used to run a Sun colour >> display on > > Do colour portrait displays exist? The reason I ask is that I wonder if > they use specially designed CRTs. IIRC, the whole point of the 'in line > gun' (PIL) CRT was that the 3 electron gus were in a horizontal line, > so > that only the vertical component of the earth's magnetic field had much > effect on the convergence, and that was relatively constant in a given > area. So if the CRT was set up properly you could move the unit around > without having to do a reconvergence (this was a problem with delta-gun > CRTs which had to be set up in the positionan nnd orientation where > they > were going to be used, but if that was done they give an excellent > picture). > > -tony For a time anyway Radius produced the Color Pivot portrait/landscape monitor. When I was at school I saw a LCD that had an adjustment for (what would that be? skew?) and for a while thought that someone had brought the concept back. No dice, though.

19 years, 8 months

1
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Wang 725-3488-US Keyboards

by technobug＠comcast.net

A friend who recycles computers recently got a case of NIB Wang keyboards. If there is any interest in same, please contact me off list. CRC

19 years, 8 months

2
1
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TCP/IP Testing help

by mbbrutman-cctalk＠brutman.com

Cool - I've been watching tcpdump on the Linux box, so I'm seeing the activity. I'll spare everybody and ask that people send me email (directly) only if they see a problem. I'm going to comb through the logs from the DOS box and the tcpdump when all is done to see if I missed any corner cases in the protocol. Straight TCP/IP is pretty fun to do. Getting the error handling down is not as easy. I'm also missing a few functions: - I'm not honoring the receive window from the other side. - I'm not detecting or cleaning up half-open connections. - I don't have a really robust algorithm for measuring round trip packet time and determining a timeout period. (I'm just defaulting to 10 secs ..) All of this will get fixed, but I was so desperate after a year of work to see this code do something. :-) Mike

19 years, 8 months

1
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Low-Level Format a Plus Hardcard 20 ?

by glen.slick＠gmail.com

I recently dug out an IBM XT to create some 5.25 floppy images and while I'm at it I thought I'd try to get the Plus Hardcard 20 installed it it working. (This is a dual floppy XT without an original IBM hard drive). Does anyone know how to low-level format the Plus Hardcard 20? There is ROM data at C800:0, but it doesn't look like g=C8000:5 would execute valid code so I don't think that is the trick with this drive. I searched the net for while but came up empty for useful info. -Glen

19 years, 8 months

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