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

by ajp166＠bellatlantic.net

From: Eric Smith <eric(a)brouhaha.com> >According to its designers, the ALU on the 8080 is 4 bits wide, and >takes 2 cycles for an 8-bit add or subtract. Presumably it takes at >least 4 cycles for a 16-bit add or subtract. The 8080 takes so many >cycles for *anything* that it's not obvious what it does internally on >any given cycle. It's not. It's 8bit. the cycles are wastes on delivering status and fetching operands. You do multiple ops for 16bit adds/subs. What makes the 8080/z80 interesting is the acc has a intermediate carry for BCD ops. Allison

25 years, 8 months

1
0
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TCP/IP on eightbitters

by optimus＠canit.se

How many eight-bit micros are there with TCP/IP implementations? I can only think of the C64 and the MSX. For the C64, there are AFAIK two implementations. One is a "normal" C64 program, with some clients for telnet, IRC and FTP, IIRC. The other one is a UNIX look-a-like called Lunix, which will een handle ingoing telnet calls on a slip line. I believe both are available at http://www.heilbronn.netsurf.de/~dallmann/c64.html As for the MSX, the one implementation I know of is UZIX, which is about as close to an eight-bit UNIX you can get. Its homepage is available at http://www.dcc.unicamp.br/~adrcunha/uzix I've heard some talk about a TCP/IP project for the Spectrum, as well. Then there is the Ethernet card for the Apple II. Which protocols does it support? -- En ligne avec Thor 2.6. Amiga: (noun) The most technologically advanced computer that hardly anyone cares about. Use in sentence: "I wanted to buy an Amiga for its low price and great color graphics, but everyone else seems to be using IBMs or Macintoshes. So, to remain compatible with the rest of the world, I spent three times as much on a Macintosh and got only half the graphics capability of an Amiga."

25 years, 8 months

6
20
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Calling computer collectors in northern Europe!

by ekman＠lysator.liu.se

Fellow collectors, I am sending this message in the hope that some kind souls can help save at least parts of an attic-full of classic computers. The story is as follows: Several years ago, a computer company in Gothenburg, Sweden, bought the entire stock of the former Swedish Sord distributor (Sord was one of Japan's major PC manufacturers during the 80's). The contents of their warehouse were soon moved to an attic where it has been collecting dust until today. Now word reaches me that this company is in the process of moving and that if nothing is done quickly, the entire attic-full of computers may be thrown away. Trashed. Destroyed. I once made a partial inventory of the attic in question and it contains some 25 more or less complete Sord systems, plus a bunch of diskless PC workstations, plus printers, monitors, disks, keyboards, various spare parts and more software than a strong man can carry. They may decide to keep a few complete systems for historical reasons, but most will be lost unless something can be done. In fact, it may already be too late as I write this. If you live in northern Europe and if you want one or more of these systems and if you can drive a car to Gothenburg within the very near future then contact me as soon as possible. I have some close contacts at the company and will make sure that you get in touch. If there are any questions, I am of course willing to answer them as best I am able. /Fredrik Ekman PS. Please forward this to ayone you think might be interested.

25 years, 8 months

2
1
0 0

10base2 / 10baseT (again)

by pete＠dunnington.u-net.com

On Nov 24, 18:34, Richard Erlacher wrote: > Does the '422 standard specify handshaking? Can you provide a reference, > or, better yet, a URL? Well, the standards document would be the definitive reference, but I only have extracts and references in books. -- Pete Peter Turnbull Network Manager Dept. of Computer Science University of York

25 years, 8 months

1
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Fwd: HP 3000???

by cfandt＠netsync.net

Hey folks, Those of you who know HP3k gear, could you be so kind please contact Mr. Muller to assist? The 3000's are not in my range of knowledge at all, just some 9000/300's and the good ol' ancient HP250 machine. Must be how he found me. Wonder if he found one of you HP gurus thru the same "web" search? Please contact him directly as he's not on the list. Thanks much for your help! Regards, Chris -- -- > > >From mailnull Mon Nov 20 14:20:14 2000 > Reply-To: <chris.muller(a)mullermedia.com> > From: "Chris Muller" <chris.muller(a)mullermedia.com> > To: "'gcfandt(a)netsyngcg.net'" <cfandt(a)netsync.net> > Subject: HP 3000??? > Date: Mon, 20 Nov 2000 14:21:47 -0500 > X-Mailer: Microsoft Outlook CWS, Build 9.0.2416 (9.0.2910.0) > Importance: Normal > > Hi, > > Saw your name on the web in connection with HP. I'm looking for information > on the organization of backup tapes created on an HP 3000. (We write PC > programs to read minicomputer tapes, and want to do one for the HP3k). Thanks > for any help you can give us. > > Regards, > > Chris Muller > Muller Media Conversions > <http://www.mullermedia.com/>http://www.mullermedia.com > 212-344-0474 > Christian Fandt, Electronic/Electrical Historian Jamestown, NY USA cfandt(a)netsync.net Member of Antique Wireless Association URL: http://www.antiquewireless.org/

25 years, 8 months

1
0
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10base2 / 10baseT (again)

by pete＠dunnington.u-net.com

On Nov 24, 23:25, Tony Duell wrote: > > > > > I'm trying to think of any interface on the Mac that is in any sense > > > 'standard'. And no, I can't think of one... > > > > Their serial and printer ports are rs232 ports. their USB is entirely normal. > > The serial ports on any Mac that I've seen are not RS232. They have > differential data lines for one thing. And I believe that the RS232 > standard specifies a DB25 connector. The Mac serial ports are closer to > RS422 than anything, but they're not strictly RS422 ports either. Indeed. Wrong handshaking for RS422. And their DB25 SCSI isn't the same as the original PC version, and does not meet the spec laid out in the SCSI standard, so their SCSI is hardly a standard either. -- Pete Peter Turnbull Network Manager Dept. of Computer Science University of York

25 years, 8 months

2
1
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intro and RML380Z

by pete＠dunnington.u-net.com

On Nov 24, 13:40, Paul Williams wrote: > John Honniball wrote: > > On Thu, 23 Nov 2000 18:47:12 +0000 (GMT) Tony Duell wrote: > > > > > > A 380Z _is_ a pile of boards and a case :-). Well, OK, there's a > > > PSU and maybe a couple of drives as well. > > > > Quite right! My machine is missing the drives, wiring > > loom, front panel, card cage and connectors. > > Oh come on, John. You've not got a 380Z. You've got a 19" cake tin. LOL! -- Pete Peter Turnbull Network Manager Dept. of Computer Science University of York

25 years, 8 months

1
0
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intro and RML380Z

by kebabthesheep＠yahoo.com

--- Tony Duell <ard(a)p850ug1.demon.co.uk> wrote: > > > > The box in question is a RML-380Z-D model, with > dual 5 > > 1/4" drives, and I think, 32K RAM. It has two > video > > There is room for 32K RAM (2 rows of 4116s) on the > CPU card. Oh - must have miscounted :-/ > If you have > the RAM expansion card (which, as you imply is a CPU > board with the CPU > and many other chips messing and a different address > decoder PROM) then > you possibly have up to 56K RAM. I has an address *prom*? I thought it was purely TTL? I s'pose its hard to tell with all the pretty little coloured[1] splodges all over the socketed chips (presumably to aid the people who put the chips in...) > COS = Cassette Operating System, and is basically a > bootstrap loader (for > cassette or disk) and a machine code monitor. I figured that much out eventually :) > I should have a system disk somewhere, but it would > take some time to find > it. Kewl - any system disk, even a duplicate is good - at least one may work. > I also should have the COS user manual (giving > some of the calls, > etc) In what format? Electronic? (i.e. easily sharable?) > but I don't have the optional source lisitng of > COS (and FWIW, I'm > looking for it too). As soon as the <insert your own expletive> person who broke our lab's device programmer fixes it - i'll dump the COS roms. I managed to dump the disk rom, using an older programmer - but it wouldn't touch the older, mainboard devices - It complained of over-current. I suspect it was not intended to cope with *all* devices - unlike our really fancy new one - which is broke :( > Yes, or X to boot with the floppies swapped over > (the 'B' drive is A:). > The latter is useful if one drive decides to fail... How thoughtful of RML :) > There is an LED on the > floppy > > controller, it flashes with a kind of 'heart beat' > > pattern i.e. > Flash-flash--pause--flash-flash--pause > > Are you sure this is a standard RML disk controller? > I can't find any LED > on the schematics, and I don't remember there being > one when I looked > inside my machine. The standard disk controller is > one card that fits > onto the 50 way 'bus' ribbon cable, and which > contains a 1771 disk > controller (Single density only) and a 8251-based > serial port (device SIO-4) Um, no! I know nowt about this box - I'll check the disk controller very carefully tonight. Its software is certaining interesting - very wacky code, quite a bit of it polymorphic - just to hurt your brain :-/ The card *is* on the main bus, and is connected to the floppy and serial port. It is also stamped (C)RML, ISTR. I've a really nasty feeling, this machine has been a student project, and they used the floppy controller as a secondary cpu :) Should there be a mostek MT4802 (2Kx8 SRAM) in the socket above the eprom? It doesn't even occupy all the socket (which is suspicious) and the ROM does contain memory sizing routines...they're obvious :) I *really* hope not! Dave. [1] Appologies if you think I spelt it wrogn ;0 __________________________________________________ Do You Yahoo!? Yahoo! Calendar - Get organized for the holidays! http://calendar.yahoo.com/

25 years, 8 months

8
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intro and RML380Z

by kebabthesheep＠yahoo.com

--- Tony Duell <ard(a)p850ug1.demon.co.uk> wrote: > > > > > > --- Tony Duell <ard(a)p850ug1.demon.co.uk> wrote: > > Incidentally, you don't need to send me a private > copy of e-mail that you > post to the list. I read classiccmp :-) Apologies - a habit left over from another mailing list, where it is customary. > > OH! Something else that became obsolete before I > > started taking things apart...(I'm only 23) > > Wait until you come across 1702 EPROMs. They run > from a 14V supply, > conventionally called +5V and -9V (there is _no_ > ground pin on the chip). > Inputs and outputs are TTL-compatible wrt a 'ground' > 5V below the +ve > rail (so if you use +5V and -9V, the address and > data lines link up to > normal TTL). > > Programming 1702s is even more 'fun' and involves > taking several pins up > to quite high voltages... Mmmmm! Lovely stuff! I wonder if me old mucker from secondary school/uni still has that box of really old smelly eproms - i'll give him a call and find out... > > That would explain rather a lot. I'll have to > build > > me an eprom dumper then. > > I'll get one of them 24 bit (8255 based) ISA IO > cards > > from maplin (about 25 quid ISTR) and make one up. > > Seems reasonable. > Damn damn and triple damn! I just got the latest MAPLIN cataloge last night - they don't do the 8255 card anymore, they do a carp replacement - using TTL - costing, wait for it, 100gbp! They can *get lost* i'll build my own darned pc card - I wonder if farnell still do 'blank' ISA prototyping cards? I need to get on and build up my PCB making equipment again - so I can build myself, and other serious computer geeks, special cards :) How about a dual 8255 based card? 48 bit programmable digital IO anybody? Single density floppy controller? Oh! The list could be endless! > Since the COS ROMs are readable by the 380Z's > processor (unlike the > address decoder, say), you could presumably read the > ROMs by a little > program on the 380Z and squirt the data out of the > serial port. I could if I had any data on it :( > > > > > Are you sure this is a standard RML disk > > > controller? > > MB8877a which I believe is a 5voltonly WD1793 > > > > i.e. A double density controller. There are > obviously > > Yes... This sounds like a double-density card > alright. And it's a card > I've never seen and have no schematics or data on > :-(. > > Which means it may well need a non-standard system > disk as well, > something that none of us seem to have :-( :-(... > Damn! Foiled! Looks like i'm going to have to go with Dwight's (sp?) suggestion and write my own bios. That should get me back up to speed with the old Z80 again...i'll try any system disk anybody sends me anyway - I can alway find the correct controller card for them. I think it was Monsier Honniball who had some RML380Z bits... Dave. __________________________________________________ Do You Yahoo!? Yahoo! Shopping - Thousands of Stores. Millions of Products. http://shopping.yahoo.com/

25 years, 8 months

5
8
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10base2 / 10baseT (again)

by pete＠dunnington.u-net.com

OK, next question. I've acquired a few Asante FriendlyNet Thin Adaptors. These are little boxes about the size and shape of old Mac transceivers -- about 4" long, 2" wide, 1 1/4" thick. One end has an RJ45; the other has a BNC sticking out each side: ____________________ _ | | { } | |_|_|_ | | | _ _ _| | | | | |____________________| {_} Inside is a standard 5V-9V DC-DC converter, a standard ethernet 3-section transformer, and a perfectly ordinary DP8392 ethernet transceiver IC and the usual discrete components (diode, a few resistors, etc) I associate with an ethernet coax driver. So on the face of it, it looks like a line-powered 10baseT to 10base2 converter. Oh yes, one other thing: the BNCs are self-terminating; they have an extra contact set into the centre insulation (with nothing plugged in, there's 50 ohms across core and screen; with two plugs in, it's open-circuit). But it doesn't seem to work -- so what is it really? If it's any clue, they came from someone who's into Apple Macs. -- Pete Peter Turnbull Network Manager Dept. of Computer Science University of York

25 years, 8 months

5
5
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anyone in switzerland?

by azog＠azog.org

Just saw this on comp.sys.dec. Sounds like a nice deal for someone in switzerland: From: Peter Mueri <MPe(a)pop.agri.ch> Newsgroups: comp.sys.dec Subject: FS: uVAX2000, PRO380, RD54, RZ58 Date: Fri, 24 Nov 2000 14:42:17 +0000 For cheap sale, pick-up preferred: 2 uVAX2000/VAXStation2000 1 VAXstation 3100/76, 1 DEC Professional 380 with Monitor/KB and P/OS Distro, RT11-Disk and docu 1 VAXmate PC, various replaement parts various DEC QBUS Cards 1 Rainbow PC with Stand 1 19" B/W DEC Monitor various Disks (RD54 MFM, RZ58 SCSI) Offers per Email please, details available from mpe(a)pop.agri.ch regards Peter, Switzerland.

25 years, 8 months

1
0
0 0

intro and RML380Z

by kebabthesheep＠yahoo.com

--- John Honniball <John.Honniball(a)uwe.ac.uk> wrote: > > Mine has a passive terminator board which has space for a > UHF modulator, but the parts aren't installed. > Sounds familiar! > As for the disk controller, it has a WD FD1771, a Z80 CTC > (Counter-Timer Chip) and an 8251 serial chip. Also the > usual glue logic and some 1488/1489 drivers. > AHA! It _IS_ the old card. Just what I need to start using the box. I have the newer posher one, which we may not have software for. I still would like to get the newer card to work tho :) Dave. __________________________________________________ Do You Yahoo!? Yahoo! Shopping - Thousands of Stores. Millions of Products. http://shopping.yahoo.com/

25 years, 8 months

1
0
0 0

DPS TBC I

by mgregory＠vantageresearch.com

I've just acquired a time-base corrector made by Digital Processing Systems, model VT-1000 (the original TBC made by DPS) for use with my Video Toaster. Unfortunately, I didn't get either a manual or the driver disk required. I've tried various Amiga and video-related newsgroups, but to no avail. Can any videophiles on the list help me with the following questions: - what are the 4 RCA jacks on the back of the card, in order from top to bottom? - what does the switch above the jacks do? - has anyone got a driver disk (for Amiga DOS) they're willing to copy? I'd happily pay shipping and a handling fee for a copy of the disk and/or manual for this beast (made in 1990, I believe, and thus just on-topic). Thanks! Mark.

25 years, 8 months

3
2
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Identify HP board?

by pete＠dunnington.u-net.com

On Nov 23, 22:34, jeff.kaneko(a)juno.com wrote: On Thu, 23 Nov 2000 23:54:35 GMT pete(a)dunnington.u-net.com (Pete Turnbull) writes: > > I've found an HP board, which has "HP 03812L" and then "98574-66513" > > on it. > > I think this is a part for an HP9000 system, more precisely a "68040 > > EMULATION PROCESSOR". Is this something you can plug in in place of > > a real > > 68040, and if so might it work in anything other than an HP9000? > Is this thing L-Shaped? If it is, then this is the 'l-board' > that goes into Hp 9000/375 (I have one of these sitting in my > garage). Yes, it is. About 7 1/2" by 8", with a 5" x 4" chunk cut out. > Anyways, many of these were swapped out in favor of a *real* > 68040 running at 25 or 33 Mc. HP used these boards because > (presumably) they had their 68040 system board laid out and > ready to go but Moto didn't quite have the silicon yet. > > SO they outfitted the 9000/375 with this kludge (that used a > 68030), and the later 380's were the same hardware with the > real processor installed, instead of the L-board. That sounds plausible. Thanks for the info. > I would be really curious to know if this thing functions > as an '040 in other systems . . . Well, if I get the chance, I'll try it. I wouldn't be too hopeful, though; partly because it's quite large, and partly because it's been lying around without any antistatic protection for months, and has been handled by several people in that time. -- Pete Peter Turnbull Network Manager Dept. of Computer Science University of York

25 years, 8 months

1
0
0 0

10base2 / 10baseT (again)

by pete＠dunnington.u-net.com

On Nov 23, 22:35, Richard Erlacher wrote: > It's been a long time since I last put together a coax board uisng a DP8392 > transceiver, but as I recall the 8392 needed relatively few external > devices. Its purpose, however, was to drive the coax. I don't believe > there's any need for it in a TP application. Well, no, you use a different transceiver IC for that, with a differntial output, differential input, and some capacitors for pulse-shaping. > In the classic ethernet/thinnet board design, there was a controller, e.g. > AMD 7990, a modulator/demodulator, e.g. AMD 7992, often with the digital pll > right in it, and a coax driver like the 8392, but, in AMD's case it was > another device with more pins and more external parts.. The > modulator/demodulator drove the AUI outputs, OR, if jumpered appropriately, > drove the DP8392. The DP8392 was also the most costly of the three or four > popular coax drivers, (AMD, Intel, National, and SEEQ) but it was worth it > because of its smaller package size and need for fewer external components. I have a few boards (at least one ISA for a PC, and some Acorn cards) which use the Intel controller and SEEQ. My experience (and that of some others I've talked to) is that the Intel/SEEQ combination is much less reliable than the AMD/National ones. It's also much harder to get the ICs for if you need to repair one. -- Pete Peter Turnbull Network Manager Dept. of Computer Science University of York

25 years, 8 months

1
0
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10base2 / 10baseT (again)

by pete＠dunnington.u-net.com

On Nov 24, 5:48, Eric Smith wrote: > > I've acquired a few Asante FriendlyNet Thin Adaptors. These are little > [...] > > So on the face of it, it looks like a > > line-powered 10baseT to 10base2 converter. > > No, it's just a 10base2 transceiver with a funky connector for the AUI > rather than a standard 15-pin D-sub. It has nothing whatsoever to do > with 10baseT. Thank, Eric, that's exctly the conclusion I came to in the end, but it's nice to have it confirmed. -- Pete Peter Turnbull Network Manager Dept. of Computer Science University of York

25 years, 8 months

1
0
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10base2 / 10baseT (again)

by pete＠dunnington.u-net.com

On Nov 23, 18:07, Zane H. Healy wrote: > Actually these just came up on comp.os.vms, of all places, a few days ago. > Aparently Asante just used the RJ45 to connect them to their Ethernet card. > While it looks like it should be a 10BaseT-to-10Base2 converter it > apparently isn't. Thanks, Zane. Yes, having loked at some of the connections inside, that seems to be it. -- Pete Peter Turnbull Network Manager Dept. of Computer Science University of York

25 years, 8 months

1
0
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VAX emulation

by azog＠azog.org

I was bored, so I was wondering if there are any VAX emulators. I found www.charon-vax.com which emulates a KA630. It'll install from the montagar CD on WinNT and Win2k. It won't emulate an RRD40 on Win9x. I'm going to be running VMS on my laptop :)

25 years, 8 months

13
17
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RS/6000 ATM cards

by lemay＠cs.umn.edu

I have some ATM network cards for RS/6000 computers. 100Mbps. If this is of value to someone, let me know what you offer in trade. -Lawrence LeMay lemay(a)cs.umn.edu

25 years, 8 months

2
1
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First personal computer nostalgia

by jeff.kaneko＠juno.com

On Thu, 16 Nov 2000 17:43:57 -0500 "Robert Stek" <r.stek(a)snet.net> writes: > ... and after that it starts to get too modern. But micros's have > always been a passion - even though I am a clinincal psychologist by > training, and I work in program evaluation in health care. Gee Bob, with the ESP program, and subsequent brainwave business, I thought fer sure you'd be a para-psychologist! :^) Who you gonna call . . . ? ________________________________________________________________ GET INTERNET ACCESS FROM JUNO! Juno offers FREE or PREMIUM Internet access for less! Join Juno today! For your FREE software, visit: http://dl.www.juno.com/get/tagj.

25 years, 8 months

7
10
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Identify HP board?

by jeff.kaneko＠juno.com

Pete: Is this thing L-Shaped? If it is, then this is the 'l-board' that goes into Hp 9000/375 (I have one of these sitting in my garage). Anyways, many of these were swapped out in favor of a *real* 68040 running at 25 or 33 Mc. HP used these boards because (presumably) they had their 68040 system board laid out and ready to go but Moto didn't quite have the silicon yet. SO they outfitted the 9000/375 with this kludge (that used a 68030), and the later 380's were the same hardware with the real processor installed, instead of the L-board. The SC140475RC50 is a 68030 (custom spec'd in some manner) running at 50Mc. I would be really curious to know if this thing functions as an '040 in other systems . . . Jeff On Thu, 23 Nov 2000 23:54:35 GMT pete(a)dunnington.u-net.com (Pete Turnbull) writes: > I've found an HP board, which has "HP 03812L" and then "98574-66513" > on it. > I think this is a part for an HP9000 system, more precisely a "68040 > EMULATION PROCESSOR". Is this something you can plug in in place of > a real > 68040, and if so might it work in anything other than an HP9000? > > It sounds plausible, since it has an SC140475RC50 (looks like some > kind of > processor?) and an XC68882RC50A (FPU) on it, as well as an MK4202P > (eh?), > some fast logic, some cache RAM, and a 184-pin "plug" that obviously > plugs > into something like a processor socket. I was given it for the > 68882, for > use in a Mac, but I'm wondering if it's better left intact... > > BTW, anyone know the difference between an MC68882 and XC68882? > > -- > > Pete Peter Turnbull > Network Manager > Dept. of Computer > Science > University of York ________________________________________________________________ GET INTERNET ACCESS FROM JUNO! Juno offers FREE or PREMIUM Internet access for less! Join Juno today! For your FREE software, visit: http://dl.www.juno.com/get/tagj.

25 years, 8 months

1
0
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Identify HP board?

by pete＠dunnington.u-net.com

On Nov 23, 16:03, Chris Kennedy wrote: > Pete Turnbull wrote: > > > BTW, anyone know the difference between an MC68882 and XC68882? > > When we were building accelerator boards for the Amiga we used to > get those all the time. The Mot rep claimed they were pre-production > parts, or more properly, parts which hadn't been subject to the production > acceptance criteria. > > Translation: They're the things that showed up when you ordered MC68882s > too early in the game... That would fit -- the one and only reference I found to the HP board number says it was superceded by another, similar board, suggesting this one is an early one. And why would anyone make a complex and presumably expensive 68040 emulator when you could just buy the real thing? Only if you couldn't yet obtain the real thing, I suppose. Thanks, Chris! -- Pete Peter Turnbull Network Manager Dept. of Computer Science University of York

25 years, 8 months

1
0
0 0

Thicknet (was Re: BBS's)

by pete＠dunnington.u-net.com

On Nov 24, 0:00, Tony Duell wrote: > I believe there is a balun-type thing that lets you use a piece of > twisted pair cable in place of a piece of coax _for a 10base2 network_. > The signals on the twisted pair are not 10baseT, and you can't use it as > a converter. In particular if you want to link multiple machines together > with twisted pair you need _2_ baluns at each machine (linked up to a BNC > t-piece) and 2 pieces of twisted pair cable, one from the 'previous' > machine and one to the 'next' machine, just as you would with coax. Thanks, Tony. That's what I thought. In fact, at least one of the catalogues actually says their baluns are only to carry 10b2 over twisted cable. -- Pete Peter Turnbull Network Manager Dept. of Computer Science University of York

25 years, 8 months

1
0
0 0

Identify HP board?

by pete＠dunnington.u-net.com

I've found an HP board, which has "HP 03812L" and then "98574-66513" on it. I think this is a part for an HP9000 system, more precisely a "68040 EMULATION PROCESSOR". Is this something you can plug in in place of a real 68040, and if so might it work in anything other than an HP9000? It sounds plausible, since it has an SC140475RC50 (looks like some kind of processor?) and an XC68882RC50A (FPU) on it, as well as an MK4202P (eh?), some fast logic, some cache RAM, and a 184-pin "plug" that obviously plugs into something like a processor socket. I was given it for the 68882, for use in a Mac, but I'm wondering if it's better left intact... BTW, anyone know the difference between an MC68882 and XC68882? -- Pete Peter Turnbull Network Manager Dept. of Computer Science University of York

25 years, 8 months

3
4
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What is it ?

by lgwalker＠look.ca

I have a short 8-bit card with a strange mouse socket. It could be a Zenith card as I found it in an old Zenith PC case piled up inside with other cards which obviously didn't belong to the Zenith. It has a DE9 monitor connection with a mono/color switch below it and a port labelled "mouse" below that. It is a DIN with 9 staggered holes but smaller than your standard k-b socket and larger than a PS/2 or Mac one. Internally it has 2 game and one light-pen connectors. It's most significant chip is a 100pin surface mounted 6612. The only removable chip is labelled AM2764ADC, and 838AE9G. Most of the other chips are logoed GS. There is a # written with marker pen S88101035. Did Zenith have a proprietory mouse at some point or is this another beast entirely. I notice that most of the GS low-powered Shotsky chips are labelled some multiple of H eg: H10, H18, H38 etc. which makes me think Zenith/Heath. ciao larry Reply to: lgwalker(a)look.ca

25 years, 8 months

5
9
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Thicknet (was Re: BBS's)

by pete＠dunnington.u-net.com

On Nov 22, 21:50, ajp166 wrote: > >> AUI tranciever in a junk bin, but I've never seen 10BaseT-coax > converter > > the net at work uses a few of them, those are just baluns. I've never seen a 10baseT to 10base2 cobverter that was just a balun -- all the ones I've seen consist of most of two trasceivers plus a little gubbins between. Most of the baluns I've seen in catalogues only connect to one pair of an RJ45, but I have seen one in a catalogue that connected to pins 1/2 and 3/6. Does that really work? -- Pete Peter Turnbull Network Manager Dept. of Computer Science University of York

25 years, 8 months

2
1
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intro and RML380Z

by kebabthesheep＠yahoo.com

--- John Honniball <John.Honniball(a)uwe.ac.uk> wrote: > > > anyway - I can alway find the correct controller card > > for them. I think it was Monsier Honniball who had > > some RML380Z bits... > > Oh yes, 'twas I... > > Just the pile of boards and a case, as I recall. Taken > apart years ago by somebody else. Damn, why can't they > leave this stuff in one piece? > I wonder if there's a standard old single density floppy controller amongst them? I'm certainly interested in taking them off your hands... I've mailed a car-ready mate, so we can come up and collect the bits of suns cluttering your garage, but he has yet to get back to me (He does work for DERA so email access is an intermittent affair) Maybe i'll just try the telephone thing. Haven't used it a while - I wonder if it still works? Dave. __________________________________________________ Do You Yahoo!? Yahoo! Shopping - Thousands of Stores. Millions of Products. http://shopping.yahoo.com/

25 years, 9 months

1
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Some cleaning to do

by russ＠rbcs.8m.com

I've gone full time self employment and a lot of what I've collected/stashed over the years is going to need to be gotten rid of to make room for working and to store supplies. Hopefully I can get some of what I have into it back on some things. Much of it is PC/XT to 486 era stuff and a lot of that is PS/2 related. Some of it is also Apple/Mac. As I go through the stuff and can determine what I need to get rid of I'll post it here. Right now I have to go through gobs of books and catalog them so I should have a list here soon. I'll also post much of it on my web page at http://rbcs.8m.com/saleslist.html once I can get it together. I'll have parts as well as whole machines. Right now I have a bunch od working PS/2 model 55SX machines, main units only, with HD and memory included. If I can get $5 each plus shipping I'd break even on them. I also have a model 30 and a model 30-286, both in working condition. Again if I can get $5 each plus shipping... I have a book on Ebay right now that I could sell direct - Tandy CoCo 2 Advanced Color Basic programming book. I'm in the middle of Kentucky and can ship USPS, UPS or if you're close enough pickups or delivery can be arranged.

25 years, 9 months

1
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Free: 3B2 OS tapes

by mrbill＠mrbill.net

I've got a set of AT&T 3B2 OS tapes (I think for a /500 or /600) here, that I never used back when I had a load of 3B2 stuff. They're labeled: Tape 1: ------- AT&T 3B2 Operating System Utilities Release 3.2.1 V3 120MB Tape Tape 2: ------- Operating System Utilities Rel. 3.2.1 V3 Issue 2 (1Q92) If anybody can use these, please let me know. Bill -- Bill Bradford mrbill(a)mrbill.net Austin, TX

25 years, 9 months

2
1
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CorelSCSI

by mark_k＠iname.com

Hi, The CorelSCSI package allows various SCSI devices, including WORM drives, to be used with PC-compatible (MS-DOS) and Mac computers Does anyone know what the most recent versions of CorelSCSI for the PC and/or Mac are? Any idea where I could get hold of a copy? -- Mark

25 years, 9 months

3
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Thicknet (was Re: BBS's)

by ajp166＠bellatlantic.net

From: Carlos Murillo <cem14(a)cornell.edu> >>don't have to listen to them. Why should me VAXes be interrupted by >>the constant chatter of WIN98? >>clint That was the reason for the introduction of vaxserver3100... >/etc/syslog.conf can be modified to avoid this. Fortunately, we're behind >a firewall. But having to acommodate idiotic NT needs sure sucks. REason, NT uses netbuei (netbios) as it's networking and if your running IP suite then it's netbios over IP. In the end it's netbios that wants to be pinged often. Makes for a lot of short packat traffic. Gets real nasty with more than about 30 systems on a net. Allison

25 years, 9 months

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Thicknet (was Re: BBS's)

by ajp166＠bellatlantic.net

.From: Tony Duell <ard(a)p850ug1.demon.co.uk> . >> I've only found one place where it's a problem so far, with an NE2000 card >> in a slow XT compatible the data rate (even at 10 Mbps) was too high for it DMA, a must and a lot of packet buffers (ramdisk). >I would be suprised if a PDP11 or PERQ or D-machine or... would manage >anything close to 100Mbps. In fact I know it won't. PDP-11 (q or unibus) will not. 100mb/S rate needs a minimum of 12.5mb second sustained transfer and burst rates slightly higher. None of the ISA-8/16 bit systems can. >Of course another issue is that some of these machines have built-in >ethernet interfaces (PERQs do, for example), and there's no way of adding >a 100Mbps card to them. Fortunately 10mb/s is still around for a while. >> Hubs and switches are getting cheap and small. An 8 port switch is about the > >What's the cost got to do with finding space for it, finding power for >it, or maintaining it? It's wall wart powered but software maintenance for them can be a pain. Not much bigger than a unmanaged hub. There is little value in switches until you get more than 4-5 systems that want to carry intense conversations concurrently. >> AUI tranciever in a junk bin, but I've never seen 10BaseT-coax converter the net at work uses a few of them, those are just baluns. Also the 10bt to AUIs are handy for boosting signal. They seem better at taking a noisy 10bt and pumping it on the backbone (thinnet) than a simple unmanaged hub. >Got a load of assorted transceivers for 10 p each recently (about 15 >cents to you...). They can be found cheap, used. Allison

25 years, 9 months

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Thicknet (was Re: BBS's)

by pete＠dunnington.u-net.com

On Nov 22, 9:14, Eric J. Korpela wrote: > They don't need to. Nothing stops machines from talking 10 Mbps over > 10baseT. That's what the 10 stands for. As long as you've got appropriate > hardware, they can commingicate with a 100 Mbps machine elsewhere on the net. > I've got 4 machines on the desk behind me on a 10 Mbps hub. The hub is > connected to the 100 Mbps switch that the machine on my desk is connected to. > I have no problems with my 100 Mbps full duplex machine talking to 10 Mbps > half duplex machines. I don't claim to know how the switch negotiates > rates and duplex. I just know that it does. It's done by a protocol involving exchange of patterns of link pulses when the link is first established. Full duplex and 100Mb capability are offered (separately, and there are a few devices that support full duplex 10Mb although it's not part of the standard) by one side of the link; if there's no approriate response from the other end, the link remains at 10Mb half-duplex (ie, normal 10baseT). > If you've got 10base2 nothing stops you from connecting it to a 100baseT > network through a repeating hub or switch. Well, strictly speaking, such dual-speed hubs are actually 2-segment repeaters that are very like simple switches (or a bridge). They buffer the data between the fast and slow segments, and on the cheaper ones that can reduce the performance significantly. > But at $80 a new 100 Mbp hub doesn't break the bank. (I also have never had > a hub or switch fail. Unless you only have a few, you've been lucky. I look after around a dozen serious switches and about 3 dozen hubs, and in the last four years we've had around half a dozen failures. Of course, one or two have been simple, like dead fans causing a hub to overheat, and we've had at least three instances of a single port failing. That's a lot fewer failures than we have on PCs, but then we have a lot more PCs! This is comparable to the rates seen by my colleagues across campus, incidentally. You should also bear in mind that ethernet is amazingly tolerant, and there can be intermittent failures, dropouts, links that fall back to half duplex etc which you won't notice unless your management system is fairly good. > On a related note, are there standards for wiring an RJ45 for phone use? > For localtalk? (I would assume that it would be possible to put both > in one.) There is, at least in the UK. I don't know if it would apply in the States, since you use two wires (one pair) for the phones and we use three (a pair and a half, but we normally also connect the fourth wire between nodes). Anyway, 10baseT and 100baseT use pins 1,2,3, and 6; the phones use 3,4,5, and 6; ISDN uses 3,4, 5 and 6 for data and carries power on the other two pairs. You normally plug a little white box containing a phone socket and PBX termination into the RJ45 wall socket. ISDN uses RJ45 plugs so nothing extra is required (unless it's a long run or multiple sockets and you need a terminator on the end). You can get little doublers that have one RJ45 plug on a short lead connected to a small box with two RJ45 sockets, wired in such a way that you can plug a 10[0]baseT into one side and a phone line into the other; connect the plug to a patch panel, and reverse the process at the other end (wall socket) to separate the signals again. They're meant for places where there's not enough "horizontal" wiring (the under-floor/overhead/behind-walls runs from patch panel/wiring closet to wall socket). You can also get ones that double up 2 x 10[0]baseT onto one cable, using all four pairs instead of two. > It would be nice to have the wired such that a misconnection > (ethernet into phone) won't fry anything. The phone won't be hurt by the net devices, but it's possible the net devices might be surprised by phone/ISDN voltages. However, as far as I know, we've never had a mishap (touch wood). > It would also be nice to sprinkle > RJ45 sockets around the house and decide what to use them for later. It's called "structured wiring", and that's what patch panels are for :-) All our ethernet, serial, ISDN, and POTS signals are carried on the same wiring and patch panels (except for the fibre, of course). We have about 800 RJ45 wall and floor sockets, not counting the patch panels, in our building for exactly that reason. I have about a couple of dozen at home, but I also have quite a few DB25s, BNCs, and phone sockets :-) -- Pete Peter Turnbull Network Manager Dept. of Computer Science University of York

25 years, 9 months

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MacOS 8.1 on an '030 (somewhat OT)

by rachael_＠gmx.net

>This is absolutely *disturbing*. >http://people.ne.mediaone.net/brochner/bornagain/showme.htm It`s running on a 040 there but I belive that there is a hack in one of the apple emulator for that amiga that would let you runne 8.1 on a 030. Regards Jacob Dahl Pind Public Pgp key available on request -------------------------------------------------- = IF this computer is with us now... = =...It must have been meant to come live with us.= = (Belldandy - Goddess First class) = --------------------------------------------------

25 years, 9 months

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Thicknet (was Re: BBS's)

by ethan_dicks＠yahoo.com

--- Gene Buckle <geneb(a)deltasoft.com> wrote: > I still have one of those huge H???? vampire tap ethernet trancievers that I > modified for 10Base2 that I can hook up to the DEQNA. > g. But does anyone out there use Thicknet at home? I have one vampire tap transceiver (and a bunch of 10Base2). I would love to set up a segment of 10Base5 just for the historical sake of it all. I suppose I would need at least one more 10Base5 transceiver to make it worthwhile. -ethan ===== Even though my old e-mail address is no longer going to vanish, please note my new public address: erd(a)iname.com The original webpage address is still going away. The permanent home is: http://penguincentral.com/ See http://ohio.voyager.net/ for details. __________________________________________________ Do You Yahoo!? Yahoo! Calendar - Get organized for the holidays! http://calendar.yahoo.com/

25 years, 9 months

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ISA prototyping boards at RSLC, was Re: intro and RML380Z

by dogas＠bellsouth.net

> What size and pad type do these board use? How big are the holes? How's > the provision for power distribution? How are the bus signals terminated? They were full sized ISAs, the boards are green and the holes were kinda small and lined up... ;) Plated through holes and no termination I think. I'll dig one up again for the catno. and specs you asked for this weekend > I've seen some boards I'd consider at the Radio Shack.com store here in > Denver, but I've never seen one in a regular RS store. They looked like closedout regular RS cat'd stock items of indeterminant age but still 'NIB' ;) - Mike: dogas(a)bellsouth.net

25 years, 9 months

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Rescue Needed: IBM System 36 in Central PA

by LFessen106＠aol.com

In a message dated Tue, 21 Nov 2000 12:56:24 PM Eastern Standard Time, James Willing <jimw(a)agora.rdrop.com> writes: << Please contact original message author (shown below) if you have rescue this one. -jim ---------- Forwarded message ---------- Date: Mon, 20 Nov 2000 12:05:18 -0500 From: Nathan Lauver <nlauver(a)acsworld.net> To: jimw(a)computergarage.org Jim, My company is in posession of an IBM System/36, most of the docs, lots of software, the line printer, two terminals, and an ISA-based emu card for a pc. I can't find anyone to buy it, and it's getting cold. It's in a pavillion-like storage area outside. I talked to the powers that be, and said if I can even just get it out of our way, they'd be happy. Would you be interested in picking it up, or having it shipped? We're located in Central PA. -Nathan >> Just how big is this? I am located outside Allentown (Eastern PA). And where exactly are you located? -Linc Fessenden http://members.aol.com/lfessen106

25 years, 9 months

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TCP/IP on eightbitters

by rachael_＠gmx.net

There is a tcp/ip stack for Amstrad CPC called cpc/ip last time I looked at it only ran at 6128. Regards Jacob Dahl Pind Public Pgp key available on request -------------------------------------------------- = IF this computer is with us now... = =...It must have been meant to come live with us.= = (Belldandy - Goddess First class) = --------------------------------------------------

25 years, 9 months

1
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Two Convergent Technology UNIX server free for UK collection

by kevin＠xpuppy.freeserve.co.uk

I have a pair of Convergent Technology servers, a 640 and 220. Both running CTIX and in apparently working order. Some manuals and installation tapes, including MicroFocus Cobol (you deal with licening issues!). Free to good home, but need to be collected from near Guildford. Happy to answer any questions as best as I can. They were given to me whilst collecting another machine. Kevin Murrell kevin(a)xpuppy.freeserve.co.uk

25 years, 9 months

1
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Thicknet (was Re: BBS's)

by pete＠dunnington.u-net.com

On Nov 21, 22:29, Carlos Murillo wrote: > This reminds me of a quirk in the EE department's network; some NT boxes > here rely on some flavor of NIS for authentication, but they have to > be ping'ed every few seconds at a specific port or the NT yp client > dies. To avoid that, one of the servers sends a bogus yp packet to > _every_ IP address on the network every now and then. Unix machines > don't like it; portmap logs in a couple flavors unix have to be disabled > in order not to generate an entry every few seconds. In others, > /etc/syslog.conf can be modified to avoid this. Fortunately, we're behind > a firewall. But having to acommodate idiotic NT needs sure sucks. Agreed. This is geting a bit off-topic[1] but that's the sort of thing VLANs are for. You could use an intelligent switch (or hub) and put all the NT systems in a separate VLAN from the Unix boxes. Some systems (eg Enterasys/Cabletron) can do that for you automatically by seeing what does/does not generate certain protocol packets. A VLAN is a single broadcast domain, so the broadcast to the NT machines will be restricted to the NT machines, never reaching the Unix boxes, regardless of subnet numbers and network topology[2]. We've been using VLANs for similar purposes since 1995, though in our case it's mostly to restrict Appletalk and IPX to a range of ports (spread around several dozen switches and hubs) and to separate staff, student and management subnets. Recently I've also put the DHCP servers into a separate VLAN, and restricted the connections, so no-one can run a rogue DHCP server. [1] VLANs are too recent (mid 1990s) to properly be the province of classiccmp. [2] Of course, you could also do this by assigning all the NT boxes to a separate subnet if you have a spare number range. The advantage of VLANs is that they can overlap; machines can be members of more than one for different purposes. -- Pete Peter Turnbull Dept. of Computer Science University of York

25 years, 9 months

1
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Looking for Combat for TRS-80

by vcf＠siconic.com

Does anyone have or know where I can get a copy of the game "Combat" for the TRS-80? It was a multi-player game that allowed you to connect up two TRS-80s and play against another person in realtime. If so, please contact me directly <sellam(a)vintage.org>. Thanks! Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org

25 years, 9 months

4
4
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HP 3000 tape/file formats

by rigdonj＠intellistar.net

Can anyone help this guy? Joe >Return-Path: <chris.muller(a)mullermedia.com> >Reply-To: <chris.muller(a)mullermedia.com> >From: "Chris Muller" <chris.muller(a)mullermedia.com> >To: <rigdonj(a)intellistar.net> >Subject: HP 3000 tape/file formats >Date: Mon, 20 Nov 2000 14:17:31 -0500 >X-MSMail-Priority: Normal >Importance: Normal >X-MimeOLE: Produced By Microsoft MimeOLE V4.72.3110.3 > >Hi, > >Saw your name on the web in connection with HP. I'm looking for information >on the organization of backup tapes created on an HP 3000. (We write PC >programs to read minicomputer tapes, and want to do one for the HP3k). >Thanks for any help you can give us. >Regards, > >Chris Muller >Muller Media Conversions >http://www.mullermedia.com >212-344-0474 > > > >Attachment Converted: "C:\ATTACH\HP3000ta.htm" >

25 years, 9 months

2
1
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Geekus Deeks

by mbg＠world.std.com

> Has anyone on the list got any response from DECus lately > (2~3 months)? I tried signing up about 4 weeks ago and got > no response. I would like to do whatever's necessary to join. I'm totally disgusted with DECUS/Encompass... I think someone pulled a fast one on the membership. I understand there were two votes recently. I got my ballot for the first one... I didn't get a second, so I sent email to the location specified on the encompass web page. I never received the second ballot, and after the deadline had occurred, I got mail back indicating it (my email) had gone to the wrong place (I would have expected the mailto: link would have been set correctly). Anyway, at this point I don't care... DECUS is gone. I don't know of anything to bring it back. I won't be renewing with encompass, it doesn't meet my needs at all. Megan Gentry Former RT-11 Developer +--------------------------------+-------------------------------------+ | Megan Gentry, EMT/B, PP-ASEL | Internet (work): gentry!zk3.dec.com | | Unix Support Engineering Group | (home): mbg!world.std.com | | Compaq Computer Corporation | addresses need '@' in place of '!' | | 110 Spitbrook Rd. ZK03-2/T43 | URL: http://world.std.com/~mbg/ | | Nashua, NH 03062 | "pdp-11 programmer - some assembler | | (603) 884 1055 | required." - mbg KB1FCA | +--------------------------------+-------------------------------------+

25 years, 9 months

4
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Apple /// on eBay nice & working

by ip500＠home.com

Shameless commercial plug alert! Actually wasn't someone looking for valuation info for a /// recently? http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItem&item=504253462

25 years, 9 months

2
1
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memory chips

by pete＠dunnington.u-net.com

On Nov 21, 22:12, Hans Franke wrote: > > Anybody intrested in approx 300 MCM514258AZ80 memory chips? > > Motorola 1 Megabit 256kx4 fast page mode DRAM ? Not quite; they're static-column, not FPM. I was going to reply that two of these would make a buffer for my Z80 EPROM programmer project, but I wasn't planning to build 150 of them! Anyway, I see others have beaten me to it :-) -- Pete Peter Turnbull Dept. of Computer Science University of York

25 years, 9 months

2
2
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Commodore 286LT ?

by black＠gco.apana.org.au

Just picked up a Commodore 286LT notebook (1990, so it just makes it!). Has a connector for an internal modem & two internal plugs for ram expansion, can anyone on the list tell me where I might find this items ? (And docs for the machine.....) cheers, Lance Lyon

25 years, 9 months

2
2
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First trading list

by dogas＠bellsouth.net

Hi gang, I have some systems that I'd like to trade with. I'm, as always, looking for a little strange [cpu]. If ya see anything you like and wanna propose a trade, LMK! :) Here they are: 1. Kaypro 10 in the blue Kaypro carrying case 2. Apple II+, 2 Monitor 3. Boxed Timex 1000, Manual, 16k piggyback Module 4. Atari 800, Boxed 1050 floppy, (original style) 410 recorder 5. TRS-80 Model 4 6. Apple Mac 128, keyboard, case 7. IBM PC Portable, (buncha dos 1.0 stuff) 8. Atari 800, ps 9. Intellivision II boxed 10. Apple II+, 2 Disk IIs, Numeric Keypad, Kensington Saver, Monitor 3 11. Intellivision, buncha games 12. Epson HX-20, hard-shell plastic case 13. Commodore 128D, 1702, 1350 mouse, Geos 2.0 14. Big Matle Aquarius collection (2 computers, one boxed, 2 boxed printers, boxed program recorder, boxed 16k pac, 3 joypads,2 mini-expanders, smf 5 game carts (two boxed)) Cheers - Mike

25 years, 9 months

3
2
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Enigma machine

by oliv555＠arrl.net

For those who followed this interesting thread earlier this year here is a link http://www.sunday-times.co.uk:80/news/pages/sti/2000/11/19/stinwenws02039.h… to a series of articles recounting its recent recovery. nick o

25 years, 9 months

1
0
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Thicknet (was Re: BBS's)

by fmc＠reanimators.org

Sellam Ismail <foo(a)siconic.com> wrote: > On Mon, 20 Nov 2000, Tony Duell wrote: > > 10BaseT needs a hub. This is one more thing to find space for, one more > > thing to have to power, and one more thing that you have to maintain. > All non-issues. Small, uses relatively little power, and have you ever And it invariably wants that relatively little power to be delivered via a fat wall wart that occludes two outlets on the nearby power strip. Ducky. But don't mind me, I'm just irked because R*d H*t L*n*x 7.0's de4x5 driver doesn't seem to want to grasp that there's a BNC connector on the card, let alone that that's where the network is connected, so there is now a hunk of Cat5 leading to a shiny new hub (with BNC connector) sitting on top of that box, and a new wall wart occluding two outlets on the power strip. ObClassicCmp funnies: maybe it's just that my Un*x preferences run along BSD lines (with the exception of HP-UX version 5 on 9000/500s), but R*d H*t sure makes me think of the old joke about AIX: it's like what a Martian might do if his buddy returning from a survey of the blue planet told him about this really neat operating system called Unix that they use over yonder. ObClassicCmp2: so how many Thicknet folks actually have the tap installation tool? You know, the one that looks like a drill bit mounted in a plastic handle? -Frank McConnell

25 years, 9 months

6
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Heathkit H-89 free to good home

by vcf＠siconic.com

This guy in the Boston area has a Heathkit H-89 he would like to give away. Please contact him directly. Reply-to: sussman(a)alum.mit.edu ---------- Forwarded message ---------- Date: Mon, 20 Nov 2000 17:37:58 -0800 From: Steven Sussman <sussman(a)alum.mit.edu> Subject: VCF Feedback! I'm giving away a Heathkit(Zenith) H-89 to whomever will take it off my hands in the Boston area. -- Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org

25 years, 9 months

5
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Thicknet (was Re: BBS's)

by pete＠dunnington.u-net.com

On Nov 20, 23:11, Tony Duell wrote: > > Do I have a point? I guess my point is I'm trying to get off 10Base2, why > > Hmmm... I'm moving towards 10Base2 and away from 10BaseT > > For older (classic) computers, the bus bandwidth won't support 100Mbps > ethernet, so you have to go with one of the 10Mbps standards (I'll ignore > the original 3Mbps.. :-)). > > 10BaseT seems to have advantages when : > The computers are spread out all over the building (which doesn't apply > to my setup, where most of the networkable machines are next to each other) > > The network is being used by a number of people. After all, unplugging > the 'wrong' BNC connector from a T-piece can bring the entire network > down. This doesn't happen if you're the only person fiddling with the > network. > > Against that : > > 10BaseT needs a hub. This is one more thing to find space for, one more > thing to have to power, and one more thing that you have to maintain. > Getting spare chips for most hubs is a lot harder than getting spare chips > for 10base2 transceivers. > > Adding a machine to a 10BaseT network means running a cable back to the > hub. Adding a machine to a 10Base2 network can mean just patching it to > the cables on the nearest machine. Yes, the latter does bring the network > down, but with my setup, that's less of a problem than running another > cable. > > The BNC connector is a lot faster to wire than that darn RJ45, > particularly when you have fiddle about with the wires to get them to the > right contacts. And the solid, metal, BNC connector would seem to be more > reliable than the RJ45 as well. I tend to disagree with that. I've had lots of BNC's come off or go flaky after someone has pulled the cable, but I've only once had that happen to an RJ45. And I bet I can strip and crimp an RJ45 as fast as most people can crimp a BNC. The reason I like UTP is that if you once put in the infrastructure, you can use the structured wiring for lots of things. At work, we run Ethernet, RS232, telephones (POTS), ISDN, and video over Cat5/5e structured wiring. At home, I put in cables in lots of places and use it for serial, network, ISDN, and POTS. You do need to put enough cable in enough places, though. The other reason, of course, is that there are lots more LEDs to flash if you use a hub :-) -- Pete Peter Turnbull Dept. of Computer Science University of York

25 years, 9 months

4
3
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Infamous Toshiba PS

by truthanl＠oclc.org

To Bill Layer, Have you searched: http://www.repairfaq.org/REPAIR/F_Repair.html http://fribble.cie.rpi.edu/~repairfaq/REPAIR/F_smpsfaq.html The later is on section taken from the Small Switch mode PS Faq. I found this with Deja search on discussion groups. Larry Truthan

25 years, 9 months

1
0
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intro and RML380Z

by kebabthesheep＠yahoo.com

--- Tony Duell <ard(a)p850ug1.demon.co.uk> wrote: > Much of the random logic in the 380Z (address > decoding, video timing > decoder, etc) is done in small bipolar PROMs. These > look a bit like TTL > devices, and may even have 74xxx numbers. > > The blank chips are identical (both are 74S2872, > 256*4 bit PROMs), but > the programming is different. > AH! Controrary to what I was led to believe. I never new there were 74xxx coded proms. I do now :) ) > > > > In what format? Electronic? (i.e. easily > sharable?) > > No, on paper. I don't have a scanner, heck, I only > have a text display on > my PC, so I don't ever use electronic manuals. Quite > apart from the fact > that paper ones are a lot more portable. Shame :( > The official _commented_ source listing would have > been interesting for > the comments. I know these can be recreated, but... > Fair enough. I'll keep my eyes open for it...(sad optimism) > The schematics show that the COS ROMs (on the CPU > board) are 3 rail ones, > needing +5V, +12V and -5V. A lot of modern > programmers can't handle these > (the last 3-rail EPROM that I came across was the 2K > byte TMS2716, which > is _ancient_). > OH! Something else that became obsolete before I started taking things apart...(I'm only 23) That would explain rather a lot. I'll have to build me an eprom dumper then. I'll get one of them 24 bit (8255 based) ISA IO cards >from maplin (about 25 quid ISTR) and make one up. I'll probably be needing some data on the chips then - normally I would generate the -5v with a simple switched-capacitor or 'flying capacitor' inverter arrangement - but if it needs more than a couple of millamps, i'm gonna need a -5v psu as well :-/ Hmmm! How about the one in the RML380z! I will get the contents of those roms - even if it kills me... > > > Are you sure this is a standard RML disk > controller? > > > I can't find any LED > > > on the schematics, and I don't remember there > being > > > one when I looked > > > inside my machine. The standard disk controller > is > > > one card that fits > > > onto the 50 way 'bus' ribbon cable, and which > > > contains a 1771 disk > > > controller (Single density only) and a > 8251-based > > > serial port (device SIO-4) > > > > Um, no! I know nowt about this box - I'll check > the > > disk controller very carefully tonight. Its > software > > is certaining interesting - very wacky code, quite > a > > What softwre? and for that matter, you mention a > disk ROM, which I have > never heard of... > > The disk cotnroller schematic I have shows the > following chips (only). > > Location Type > AQ 74LS244 (address buffer) > AR 74LS245 (data buffer) > AP 74LS244 (Control line buffer) > BR 74LS138 (address decoder) > BP 74LS32 > CP 74LS02 > BU 74LS393 (clock divider) > DP 4020 (more clock division) > CQ 74LS32 > ES 74LS74 > DQ Z80A-CTC (baud rate, timing generator) > ER 8251 (serial USART) > CR 74LS00 (?) > DU 74LS123 > AV 1488 (RS232 driver) > BV 1489 (RS232 receiver) > CS WD1771 (disk controller) > BT 74LS157 > AT 7416 (disk output driver) > BU 74LS244 (disk input receiver) > CT 74LS193 > DT 74LS42 > CU 74LS96 > ET 74LS00 > EU 74LS08 > > No RAM, ROM, or CPU. > After checking it out some more it has: dated '83, where most of the box is '79 Z80A CPU, Z80 CTC, 8Kbyte EPROM (HUUUUGE!) MK4802 2Kbx8 SRAM MK3884N which is a mostek sourced Z80SIO-a-like POSH! MB8877a which I believe is a 5voltonly WD1793 i.e. A double density controller. There are obviously other devices - I just didn't note them. Looks like a more advanced double density dual drive controller then :) I wonder if it's double-sided as well??? I'll have to check my WD1793 docs. So! Have I got something a bit different then? Dave. __________________________________________________ Do You Yahoo!? Yahoo! Shopping - Thousands of Stores. Millions of Products. http://shopping.yahoo.com/

25 years, 9 months

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Thicknet (was Re: BBS's)

by pete＠dunnington.u-net.com

On Nov 20, 15:05, Shawn T. Rutledge wrote: > On Mon, Nov 20, 2000 at 01:44:17PM -0800, healyzh(a)aracnet.com wrote: > > Do I have a point? I guess my point is I'm trying to get off 10Base2, why > > would I want 10Base5 :^) I'd much rather have another 10/100 Switch than > > any 10Base5 stuff! > > Last I checked, 10base2 still has a distance advantage, perhaps enough > to matter for really large buildings. Yes, 185 metres instead of 100m -- and 10base5 will go to 500m. But you can do better and faster with fibre. -- Pete Peter Turnbull Dept. of Computer Science University of York

25 years, 9 months

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Looking for a couple of HP 7475A plotter parts

by mmcfadden＠cmh.edu

Plotters and parts The local computer surplus exchange in Kansas City has several HP 7475A's. They would probably go for $10-15 plus shipping, make them an offer. There are carousels for them. Contact them at sesales(a)crn.org. Mike mmcfadden(a)cmh.edu

25 years, 9 months

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CP/M on the TI-99/4A

by dlw＠trailingedge.com

While cataloging this huge pile of TI and Amiga stuff I recently received, I took a moment to flip through some of the stacks of old magazines that were with it. I noticed a 5 & 10 meg hard drives for the TI. That's interesting I thought but what really caught my eye was the add from Morning Star Software for a CP/M processor board for the 99/4A. 5 MHz 8085, 64K RAM with 8K ROM. Has anyone ever seen one of these or any other coprocessor boards for the 99? I've always had a fascination with coprocessor cards for different systems. There was a 6809 card for the Apple II I would have killed for years ago. I'd assume these 99/4A CP/M boards would be few and far between. ----- David Williams - Computer Packrat dlw(a)trailingedge.com http://www.trailingedge.com

25 years, 9 months

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HP Questions

by fmc＠reanimators.org

Jarkko Hermanni Teppo <jate(a)uwasa.fi> wrote: > I have a couple of HP related questions. I started thinking about these > while I was scanning all the 9000/500 docs that I have and in HP 27110B > HP-IB card manuals I saw a sentence similar to this "..supported in all > HP computers with CIO bus..". > > 1. Which machines had the CIO bus ? I know of 9K/550, 520 and at least some > version of the bus in some 800-series machines. Some (earlier) HP 3000 series 900s too. Of course they are similar hardware to 9000/800s. If Stan Sieler is reading he can probably say more about this. > 2. I know about 200/300/400/500/700/800-series but what is 9000/600 which > I've seen in a couple of manuals. I don't remember but think they are PA-RISC-based. I don't remember seeing much about the series 600s so I suspect it was a marketing thing that didn't last real long. > 3. Is the HP 7970 tape drive vacuum column or one of these newer streaming > devices (like the 7974A). None of the above. It's older, non-streaming, and it uses tension arms. > And extra bonus-points for the person who recognizes the app in the cover > of the HP 9000 550 manual at > > http://www.tec.puv.fi/~s99137/kuvat/cover.gif No idea, but it's interesting to see that the 9000/550 also had the number 9050. > And a couple of low-quality "recognize the peripheral"-pics at: > http://www.tec.puv.fi/~s99137/kuvat/uudet/ (none of those are mine, btw.) > > Particularly cipher.jpg, HP2000[12].jpg, nauha.jpg, hp3kcons.jpg. hp20001.jpg is an HP 2114 minicomputer. hp20002.jpg is a 21MX mini of some sort. I'm away from my manuals so can't easily tell which series. hp3kcons.jpg pictures an HP 2647F that was sold with an HP 3000 series 64/68/70 for use as its console. I'm thinking that for about the first year of shipments of the 3000/64, the 2647F did not have the "hp3000" plate on the front, just the usual 2647F plate. > -- > Jarkko Teppo | Lahjoita HP 7933:n levypakka hyv??n kotiin! ObUglyAmerican: what are you saying about the 7933? When I first saw one, in 1982, I thought "wow, it's so big!". Imagine my surprise when a new cow-orker saw a 7935 at Wollongong in 1995 or so and said about the same thing. I had been thinking about the capacity: 404MB was pretty impressive for a washing-machine drive back in 1982. He was clearly thinking about the size, and comparing it with 540MB drives then popular in desktop Wintel PCs. -Frank McConnell

25 years, 9 months

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Rescue Needed: IBM System 36 in Central PA

by jimw＠agora.rdrop.com

Please contact original message author (shown below) if you have rescue this one. -jim ---------- Forwarded message ---------- Date: Mon, 20 Nov 2000 12:05:18 -0500 From: Nathan Lauver <nlauver(a)acsworld.net> To: jimw(a)computergarage.org Jim, My company is in posession of an IBM System/36, most of the docs, lots of software, the line printer, two terminals, and an ISA-based emu card for a pc. I can't find anyone to buy it, and it's getting cold. It's in a pavillion-like storage area outside. I talked to the powers that be, and said if I can even just get it out of our way, they'd be happy. Would you be interested in picking it up, or having it shipped? We're located in Central PA. -Nathan

25 years, 9 months

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OT: Toshiba XXe Key Phone System Info?

by bill_r＠inetnebr.com

I guess it passes the 10-year rule, and it's got some CPUs in it (Z8xxx's) so maybe it's not as off-topic as I thought... ;-) We (my fellow techo-packrat housemate and myself) were recently given a Toshiba Strata XXe phone system and about 35 EKT-series phones by his company when they got a new system. It was working when disconnected, but we received no installation manuals - just phone user guides. It's all there, with (from what I've gathered from various web sites) an HCAU (CPU), an HCBU (aux CPU), two HCOU (central office) cards, an HINU (intercom) card, three HSTU-2 and one HSTU-5 (station cards), and an operator's console, but when they removed it, they just hacked off the 25-pair (or are the 50 pair?) cables from the HSTU cards, so I've got no way of knowing which pairs go to the phone jacks. Was wondering if anyone can point me to some information about this. Several hours of web searching has turned up some tantalizing hints, but nothing I want to risk blowing something up by trying. Any help would be very much appreciated. I found one company that will sell me a manual, but it's a weekend and this phone system _really_ wants to be hooked up! :-) Background info (if you're interested): We have half the stuff in the house automated with X-10 power control modules and the "Mister House" software using motion sensors, etc. to run lights, a 300 disc CD changer, software-based phone answering machine, etc. Mister House (www.misterhouse.net) is mostly a bunch of Perl scripts that can be made to do most anything with enough work. It also has voice I/O capability. I've got the whole place wired with ethernet, with laptops in most of the rooms. I've also got 4-pair CAT3 phone wire to each room. I'd like to use the XXe to run our phones, as well as letting "Mister House" use the hands-free intercom functions to talk to us around the house and/or receive commands from us. -Bill Richman (bill_r(a)inetnebr.com) Web Page: http://incolor.inetnebr.com/bill_r Home of the COSMAC Elf Microcomputer Simulator, Fun with Molten Metal, Orphaned Robots, and Technological Oddities.

25 years, 9 months

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Thicknet (was Re: BBS's)

by ethan_dicks＠yahoo.com

--- Pete Turnbull <pete(a)dunnington.u-net.com> wrote: > > Last I checked, 10base2 still has a distance advantage, perhaps enough > > to matter for really large buildings. > > Yes, 185 metres instead of 100m -- and 10base5 will go to 500m. But you > can do better and faster with fibre. I've already got fibre - a pair of StarLAN 10Base-T to 10Base-FL media converters (old and huge, but they work) and a pair of more modern 10Base-FL transceivers. I have a single fibre pair run up the walls >from the basement to the computer room on the second floor and my eventual goal is to lay fibre between my farmhouse and my quonset hut. I even have _one_ fiber long-haul modem - it looks like a DB25 - RJ11/RJ45 shell, but has one ST connector on it. Over a single fiber it multiplexes a full duplex 9600 baud signal and a second full duplex 1200 baud signal that can be used for flow control or an additional, low-speed channel. A friend of mine has its mate and if he ever finds it, I'll probably use it to monitor some console port on a PDP-11 in the quonset hut. Maybe I'll build a 20Ma to RS-232 converter and run an ASR-33 over it. :-) But I still want a piece of thicknet on my network, just for the amusement value. The fibre is for "gee whiz" value. -ethan ===== Even though my old e-mail address is no longer going to vanish, please note my new public address: erd(a)iname.com The original webpage address is still going away. The permanent home is: http://penguincentral.com/ See http://ohio.voyager.net/ for details. __________________________________________________ Do You Yahoo!? Yahoo! Shopping - Thousands of Stores. Millions of Products. http://shopping.yahoo.com/

25 years, 9 months

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PDP-11 available, Bristol, UK

by fauradon＠mn.mediaone.net

Don't forget the oric 1 and atmos, Amstrad cpc and the MSX representatives and other "WOW L@@K Spectrum Era" types of computers. I though Air France was going to fix the Concorde... Then forget it I don't want these computers to end up in a hotel in some big city's suburb. Francois > >All we have to do is wait for British Airways to get the >Concorde fixed, and stuff it full of BBC micros, >Whitechapel workstations, Acorn Atoms, Tangerines, Dragon >32s, UK101s and transputers. > >:-) :-) > >-- >John Honniball >Email: John.Honniball(a)uwe.ac.uk >University of the West of England >

25 years, 9 months

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Need SGI Classic Cmp Help

by LFessen106＠aol.com

In a message dated 11/21/00 3:12:15 AM Eastern Standard Time, red(a)bears.org writes: > One more thing, I believe that Linux has loadable filesystem module > support for EFS, which would be the filesystem used by these systems. I > can't say whether this is read/write support or simply read-only, but it > might be worth investigating. I don't make a point of staying abreast on > what's new and improved with Linux. > I am going to try that as soon as I have a spare few minutes. I knew Linux supported EFS but wasn't sure which file system type this old SGI had. As far as I know the Linus EFS support is read only, so I'll have to grab the password file and run John the Ripper on it in hopes of a breakthrough I guess. As far as Linux goes, I have to stay abreast of changes since I am on of the co-founder's of the Lehigh Valley Linux User Group. -Linc Fessenden http://members.aol.com/lfessen106 (Computer Collection) http://thelinuxlink.net/lvlinux (LVLUG)

25 years, 9 months

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Thicknet (was Re: BBS's)

by pete＠dunnington.u-net.com

On Nov 19, 22:18, Tarsi wrote: > >Yes, 185 metres instead of 100m -- and 10base5 will go to 500m. But you > >can do better and faster with fibre. > > Well, wouldn't we ALL like fiber, but I just don't think it's in my budget. :) Not really in mine either, but I have a few bits of cast off FOIRL and long patch leads that were discarded (wrong connectors for the more modern kit). Anyway, since most of my machines are within 50m of each other, and few can manage 100MB let alone more, there's little point in buying fibre for my home systems :-) -- Pete Peter Turnbull Dept. of Computer Science University of York

25 years, 9 months

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Need SGI Classic Cmp Help

by pete＠dunnington.u-net.com

On Nov 20, 20:35, LFessen106(a)aol.com wrote: > They both have the PS2 KB port.. I tried an actual PS2 KB, it lit up as > expected, but I got a no console error.. Do you think it will actually use a > PS2 KB and just needs to detect a mouse as well (with a PS2 splitter) or the > SGI PS2 KB/Mouse is proprietary? I did read somewhere that some SGI's use a > standard PS2 KB... Indy, Indigo^2, O2, etc use a PS/2 keyboard (or a PC-AT keyboard with a DIN to miniDIN adaptor) and PS/2 mouse, running at +5 volts. All the earlier machines use one of several variants of a proprietary protocol/pinout, basically RS423 running at +/- 8 volts or more. >From the manual page: The pin assignments for the DIN-6 keyboard connector on the CPU board of some of the newer systems are shown in the following table: ___________________________________ |_____KEYBOARD_CABLE_PINOUT_______| |Pin | Signal | Description | |____|________|___________________| | 1 | KRCD | Keyboard Receive | | 2 | MRCD | Mouse Receive | | 3 | GND | Ground | | 4 | +8Vdc | Power | | 5 | KTXD | Keyboard Transmit | |_6__|_-8Vdc__|_Power_____________| For machines whose keyboards have the DIN-6 connector on the keyboard, as well as on the CPU, the pinout is shown in the following table. The connectors on both sides of the keyboard have identical pinout, either may be used for the mouse and the cable to the CPU. __________________________________ | KEYBOARD CONNECTOR PINOUT | |_________________________________| |Pin_|_Signal_|_Description_______| | 1 | KTXD | Keyboard Transmit | | 2 | MTXD | Mouse Transmit | | 3 | GND | Ground | | 4 | +8Vdc | Power | | 5 | KRCD | Keyboard Receive | | 6 | NC | Not Connected | |____|________|___________________| The interface between the keyboard and the system is 600 baud asynchronous. The format used is one start bit followed by eight data bits, an odd parity bit and one stop bit, with one byte sent per key up or down transition. The MSB of the byte is a "0" for a downstroke and a "1" for an upstroke. Control bytes are sent to the keyboard with the same speed and format. The system software does all the processing needed to support functions such as capitalization, control characters, and numeric lock. Auto-repeat for a specified set of characters can be turned on or off by the system software by sending a control byte to the keyboard. When auto-repeat is enabled a pressed key will begin auto- repeating after 0.65 seconds and repeat 28 times per second. The keyboard initializes upon power-up. The configuration request control byte causes the keyboard to send a two-byte sequence to the system. The second byte contains the eight-bit value set on a DIP switch in the keyboard. All keyboard lights (if any; some newer systems have keyboards without user controllable lights) are controlled by the system software by sending control bytes to the keyboard to turn them on or off. Control bytes are also used for long and short beep control and key click disable. For the mouse: Signals: The serial data interface signal level is compatible with RS-423 which has roughly a 10V swing centered about ground. The idle state and true data bits for the interface are Mark level or -5V whereas false data bits and the start bit are spaces or +5V. The serial data is transmitted at 4800 baud with one start bit, eight data bits, and no parity. Protocol: The mouse provides a five-byte data block whenever there is a change of position or button state. The first byte is a sync byte which has its upper five bits set to 10000 and its lower three bits indicating the button states where a 0 indicates depression. The sync byte looks like this: 10000LMR. The next four bytes contain two difference updates of the mouse's change in position: X1, Y1, X2, and Y2. Positive values indicate movement to the right or upward. System software ignores bytes beyond the first five until reception of the next sync byte. -- Pete Peter Turnbull Dept. of Computer Science University of York

25 years, 9 months

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Need SGI Classic Cmp Help

by LFessen106＠aol.com

In a message dated Mon, 20 Nov 2000 2:52:29 PM Eastern Standard Time, Mark Green <mark(a)cs.ualberta.ca> writes: <<I would strongly advice getting the console working. The monitor part is easy, most VGA monitors will work. Depending on the graphics option that's installed in your machine you should have either a VGA or BNC connectors (some of the later graphics options used 13W3 connectors). I've had success with a wide range of monitors. The standard resolution is 1280x1024 I believe (they came standard with 19 and 21 inch monitors), but I've used 1025x768 monitors, a bit fuzzy, but it works.>> Yes, I got a monitor hooked up to it without prblms. I have both SVGA's that will handle it and also a few RGB's that'll take care of it as well. <<The keyboard and mouse is much harder. There were several models of keyboards used on these machines. What type of keyboard connector to you have? The popular ones were DB9 and PS/2 (note I don't think a PS/2 keyboard will work, but I haven't tried).>> They both have the PS2 KB port.. I tried an actual PS2 KB, it lit up as expected, but I got a no console error.. Do you think it will actually use a PS2 KB and just needs to detect a mouse as well (with a PS2 splitter) or the SGI PS2 KB/Mouse is proprietary? I did read somewhere that some SGI's use a standard PS2 KB... <<I can look up the part number tonight when I get home. The keyboards are not that common, but I have seen them on eBay. The mouse attaches to the keyboard.>>> I would really appreciate that. <<The easiest way to get these machines running is through the console. There is a way to set a terminal to be the console, but I'm not sure how its done on the PI. On some SGIs there is a hardware mechanism, but on others the console must be use (this won't help you much).>> I can get the console through a dumb terminal easily by using a regular modem cable (NOT null) on serial port 1. Works like a charm, but no lovely grfx.. <<Its difficult to do much without a console, since all the installation and maintenance procedures assume that you are working through the console by default. What devices do you have? There are two forms of the OS media. The older systems were on tape, and the newer ones were on CD. A may have IRIX 4 tapes at home, which could get you started. The 4D/35 will run up to IRIX 5.3 (something I recommend), and the CDs can be found regularly on eBay. Note that these machines are a bit picky about the CDROM drives they use, older ones are better.>> I would be eternally gratefull for somekind of media. There are no tape drives on these things at all - they both have 2 scsi drives and a scsi floppy installed. The only OS info I can find is that the one runs Irix 4.0. (5 or 2 can't remember). I do (of course) have an external scsi cdrom (works on a sun) and a couple external DAT drives that I bet would work on teh SGI's. <<It sounds like the previous owner on your second machine wiped the disk. The lack of a disk label is a good indication that there is nothing on the disk.>> Unfortunately I think you're right. <<Do you have access to any of the accounts on the first machine? Quite often the guest account had no password, so you could try that. If you are successful, run hinv to get your machine's configuration.>> Tried 'em all - Nope.. <<If you have a console the easiest way to change the root password is to boot a mini-root (this may be on partition 8 of your disk). >From there you can modify the /etc/passwd file.>> How would I go about doing this? <<SGI tended to use there own file system structures, so you may not be able to read the disks on other UNIX systems. Let me know if this helps you. My machines are at home, so I can provide any detail until tonight. One word of warning the 4D/30 series machines had a habit of catching fire. The CPU used in the 4D/30 machines generated much more heat than the 4D/20 machines, and the cabinet really wasn't designed for them The upgrade included an extra fan. If any of the fans fail the system overheats. Also run with all the skins on for better heat flow. One of the 4D/35s I had a work caught fire one day, filled the room with smoke. >> Thanks for all your help Mark, I appreciate it! -Linc Fessenden

25 years, 9 months

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MacOS 8.1 on an '030 (somewhat OT)

by spectre＠stockholm.ptloma.edu

This is absolutely *disturbing*. http://people.ne.mediaone.net/brochner/bornagain/showme.htm -- ----------------------------- personal page: http://www.armory.com/~spectre/ -- Cameron Kaiser, Point Loma Nazarene University * ckaiser(a)stockholm.ptloma.edu -- FORTUNE: The moon is in Venus' house. This will make no difference. --------

25 years, 9 months

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Need SGI Classic Cmp Help

by LFessen106＠aol.com

In a message dated Mon, 20 Nov 2000 3:48:10 PM Eastern Standard Time, Corda Albert J DLVA <CordaAJ(a)nswc.navy.mil> writes: << I've played with a number of SGIs over my career, both at home and at work. I put up a web page a while ago with most of the info I've gleaned ("This Old SGI", http://www.geocities.com/SiliconValley/Pines/2258) Unfortunately, the web page is woefully out of date as I haven't had time to go back and restructure it the way I'd like.>> I love that site - it's the one that provided nearly all the info I have on these up to this point! <<Just as in the comments below, I recommend going with Irix 5.3. It will run reasonably on this machine (with sufficient memory), and provide quite a bit of functionality.>> Anyone interested in helping me with *inexpensive* media for these? <<One thing I _strongly_ recommend... Use an air gun (or canned air) to blow out the dust throughout the entire case (including air plenums, power supply and e-module(where the circuit cards are)). I disassembled mine (including removing the power supply and popping it cover) to clean it. This critter acts just like a vacuum cleaner and will suck dust and dirt up from the bottom airgrate faster than you can imagine. At work, we mounted these things on small (6") pedestals to try to cut down the amount of internal dust they sucked up. I imagine the accumulated dust might contribute to the fire problems mentioned below.>> After opening the cases I noticed that these suck dirt better than a hoover!!.. <<...Good Luck!... -al->> Thanks for all the info Al! -Linc.

25 years, 9 months

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Need SGI Classic Cmp Help

by pete＠dunnington.u-net.com

On Nov 20, 12:47, Mark Green wrote: > The keyboard and mouse is much harder. There were several models > of keyboards used on these machines. What type of keyboard > connector to you have? The popular ones were DB9 and PS/2 (note > I don't think a PS/2 keyboard will work, but I haven't tried). > I can look up the part number tonight when I get home. The keyboards > are not that common, but I have seen them on eBay. The mouse attaches > to the keyboard. I haven't checked thoroughly, but I'm fairly sure all the keyboards use the same protocol (a serial protocol, 600 baud IIRC), just different plugs. The 4DFAQ (aka "This Old SGI" -- try a web search) is helpful about this sort of stuff. > The easiest way to get these machines running is through the > console. There is a way to set a terminal to be the console, > but I'm not sure how its done on the PI. On some SGIs there is > a hardware mechanism, but on others the console must be use (this > won't help you much). I thought all the PIs use the first serial line automatically if the keyboard isn't connected? > > 1 of them still has a working OS, and the other doesn't. I do not have any > > OS media for them at all, and the one that IS working has (Of Course) a root > > password which I do not have. What I really need here is a copy of the > > installation media here. Pleeeaaaasssee Contact me if you can assist in > > getting these systems running. I believe the 1 with the OS problem has the > > OS, but has no scsi disk label. Perhaps if someone were to have a root/boot > > disk they could copy off for me, I could get them working. I believe they > > run Iris 4.0.somthingorother. > > > > Its difficult to do much without a console, since all the installation > and maintenance procedures assume that you are working through the > console by default. What devices do you have? There are two forms > of the OS media. The older systems were on tape, and the newer ones > were on CD. A may have IRIX 4 tapes at home, which could get you > started. The 4D/35 will run up to IRIX 5.3 (something I recommend), > and the CDs can be found regularly on eBay. Note that these machines > are a bit picky about the CDROM drives they use, older ones are > better. I agree; definitely get 5.3 if you can. It does take more disk space, though. > If you have a console the easiest way to change the root password > is to boot a mini-root (this may be on partition 8 of your disk). > >From there you can modify the /etc/passwd file. If you can't get to that, because there's a password set in the NVRAM, so you can't get to the PROM monitor, the FAQ describes one way to defeat the NVRAM password. > SGI tended to use there own file system structures, so you may > not be able to read the disks on other UNIX systems. Did 4.0.5 etc use EFS? 5.3 does, and Linux can mount/read that. > PS: Are there other SGI collectors on the list? Yes, but most of mine are later than these -- three Indigos, two Indys, and an Indigo^2. -- Pete Peter Turnbull Dept. of Computer Science University of York

25 years, 9 months

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Thicknet (was Re: BBS's)

by pete＠dunnington.u-net.com

On Nov 20, 13:17, Ethan Dicks wrote: > But does anyone out there use Thicknet at home? Is there another kind? :-) > I have one vampire tap > transceiver (and a bunch of 10Base2). I would love to set up a segment > of 10Base5 just for the historical sake of it all. I suppose I would > need at least one more 10Base5 transceiver to make it worthwhile. I've got a bit of most common types at home. Well, thick (with nice long blue drops to complement the thick yellow coax), thin, and UTP, anyway. And a few feet of FOIRL too. -- Pete Peter Turnbull Dept. of Computer Science University of York

25 years, 9 months

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intro and RML380Z

by pete＠dunnington.u-net.com

On Nov 20, 6:59, kebabthesheep wrote: > I have a dual 3 1/2" + 5 1/4" drive, but I can maybe I > can use one of the drives out of the RM if it doesn't > do 360K correctly? I'd better check on that one... Assuming the drive is a "1.2MB" 5.25", it will probably be capable of reading a 40-track disk, but writing is a different matter -- the track it will lay down will only be approximately half the width of the track a real 40-track drive will use. You will probably get usable results if you bulk-erase the media before writing, but it would be best to make a good copy on the RML drives as soon as you can transfer the disk. Look in the classiccmp archives for the full debate on 35/40/80 tracks, single/double/high density, and the rest :-) -- Pete Peter Turnbull Dept. of Computer Science University of York

25 years, 9 months

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MacOS 8.1 on an '030 (somewhat OT)

by jeff.kaneko＠juno.com

Ah, does this mean that his computer will go to heaven? <Ducks> On Mon, 20 Nov 2000 15:59:11 -0800 (PST) Cameron Kaiser <spectre(a)stockholm.ptloma.edu> writes: > This is absolutely *disturbing*. > > http://people.ne.mediaone.net/brochner/bornagain/showme.htm > > -- > ----------------------------- personal page: > http://www.armory.com/~spectre/ -- > Cameron Kaiser, Point Loma Nazarene University * > ckaiser(a)stockholm.ptloma.edu > -- FORTUNE: The moon is in Venus' house. This will make no > difference. -------- ________________________________________________________________ GET INTERNET ACCESS FROM JUNO! Juno offers FREE or PREMIUM Internet access for less! Join Juno today! For your FREE software, visit: http://dl.www.juno.com/get/tagj.

25 years, 9 months

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intro and RML380Z

by pete＠dunnington.u-net.com

> I have a dual 3 1/2" + 5 1/4" drive, but I can maybe I > can use one of the drives out of the RM if it doesn't > do 360K correctly? I'd better check on that one... Hmmm... I should have read that more carefully. If it's what I think you mean, it's a single/double density 80-track 5.25" in there. The same argument about reading/writing 40 tracks on an 80-track drive applies (just as for a 1.2MB "HD" drive) but you won't have to worry about speed (300/360 rpm) or (de)selecting HD. If you're using a PC, though, you may have to find a controller capable of single density. -- Pete Peter Turnbull Dept. of Computer Science University of York

25 years, 9 months

1
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Need SGI Classic Cmp Help

by LFessen106＠aol.com

I posted this earlier but never received any response or a return message myself so forgive me if this actually made it to the list and I am re-posting........ Just got 2 SGI Personal Iris's 4D/35's today (Thanks again Tom) and no KB, Mouse, monitor for either. Finally got dumb terminal hooked & working, and was pleased NOT to find boot password protection, HOWEVER.... 1 of them still has a working OS, and the other doesn't. I do not have any OS media for them at all, and the one that IS working has (Of Course) a root password which I do not have. What I really need here is a copy of the installation media here. Pleeeaaaasssee Contact me if you can assist in getting these systems running. I believe the 1 with the OS problem has the OS, but has no scsi disk label. Perhaps if someone were to have a root/boot disk they could copy off for me, I could get them working. I believe they run Iris 4.0.somthingorother. I am also in the market for an inexpensive KB and mouse combo for at least one of these. I also got an HP Apollo 9000/715. Seems to work fine but has abscent hdd for right now. I hooked it up using my other HP's HPIB KB/Mouse and monitor. Problem here is for some reason I can not get a serial console to work on this machine. Can't figure out what the heck I am doing wrong and was wondering if anyone here knew if I had to set that up in the HP's settings to get it to work as it doesn't seem to by default. (Before you ask, I tried both a null-modem and a regular cable on this on both the rs232 and parallel ports with no luck) Also will be looking for inexpensive HPIB KB/Mouse for this.. Thanks for any help you have to offer. -Linc Fessenden

25 years, 9 months

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Need SGI Classic Cmp Help

by LFessen106＠aol.com

In a message dated Mon, 20 Nov 2000 3:56:37 PM Eastern Standard Time, James Jackson <jjackson(a)salsa-digital.com> writes: << Sun Sparc Stations (at least the II's) had the ability to allow the user to boot to single-user mode. (Don't remember the OS.) When in the single-user mode, then the operator was the 'root' operator and could change the password. It was necessary to do this on one system I was using. I just got the job, the previous employee had set the root password to god knows what, and I was locked out of several features - since I wasn't the root operator. This 'feature' (booting to single-user mode) was not really publicized, as it was a sort of 'loophole' in the system. Regards, James Jackson >> Yep, you can still do this on Suns (I have a few). Tried it on the SGI as well, however right before the "glory prompt" I was asked for a "Single User Password".. Bummer... -Linc.

25 years, 9 months

2
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RK8E

by ethan_dicks＠yahoo.com

--- David Gesswein <djg(a)drs-esg.com> wrote: > > From: Ethan Dicks <ethan_dicks(a)yahoo.com> > > Subject: Re: Anyone have an RK8E to sell? > > > > I did happen to go look at my RKV11D > > and verified that there is an M993 card at the end of it... > > I thought that the RK8E needed the IC Perhaps. I've never owned a working RK8E. > and the original cable I am using with my RK8E does have it installed. That's pretty suggestive. OTOH, perhaps that's there for RK01/RK03 compatibility? (Just a WAG) > I have a schematic in the RK8E printset but it doesn't show the IC. I, too, have the RK8E printset and the lack of information there is why I had the question in the first place. > If find you need the parts on the board I can pull > the cable and find out what they are. That would be wonderful. A scan of the board would be more than adequate. I can puzzle out the component values from there. > The RK8E (with M993C) and RK05 schematics are on my web site Roger. As I said, though, I have a set, too. Thanks, -ethan ===== Even though my old e-mail address is no longer going to vanish, please note my new public address: erd(a)iname.com The original webpage address is still going away. The permanent home is: http://penguincentral.com/ See http://ohio.voyager.net/ for details. __________________________________________________ Do You Yahoo!? Yahoo! Calendar - Get organized for the holidays! http://calendar.yahoo.com/

25 years, 9 months

1
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Geekus Deeks

by John.Allain＠donnelley.infousa.com

Hi, Has anyone on the list got any response from DECus lately (2~3 months)? I tried signing up about 4 weeks ago and got no response. I would like to do whatever's necessary to join. John A.

25 years, 9 months

2
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Need SGI Classic Cmp Help

by CordaAJ＠nswc.navy.mil

I've played with a number of SGIs over my career, both at home and at work. I put up a web page a while ago with most of the info I've gleaned ("This Old SGI", http://www.geocities.com/SiliconValley/Pines/2258) Unfortunately, the web page is woefully out of date as I haven't had time to go back and restructure it the way I'd like. I am still quite interested in SGIs, but I've broadened my interests to include DEC (PDP-series) and SUN (both old and new) stuff as well. BTW, I agree with the approach below... although you can do quite a bit through the serial console, getting the graphics console up would be much better. The 4D/35 keyboard/mouse is proprietary, but should be available from places like www.reputable.com, www.mce.com and www.mashek.com (and many others who's name escape me at just this moment) The mouse might be fudged using an old Sun mouse and some mods, but I would still recommend getting a "real" SGI mouse as the modified sun mouse doesn't work as well as the real SGI version. Just as in the comments below, I recommend going with Irix 5.3. It will run reasonably on this machine (with sufficient memory), and provide quite a bit of functionality. One thing I _strongly_ recommend... Use an air gun (or canned air) to blow out the dust throughout the entire case (including air plenums, power supply and e-module(where the circuit cards are)). I disassembled mine (including removing the power supply and popping it cover) to clean it. This critter acts just like a vacuum cleaner and will suck dust and dirt up from the bottom airgrate faster than you can imagine. At work, we mounted these things on small (6") pedestals to try to cut down the amount of internal dust they sucked up. I imagine the accumulated dust might contribute to the fire problems mentioned below. BTW, as far a CDROMS go, SGI used Toshibas (I think the models were 3401 or 3501)for quite a while. The important thing is to make certain that they are jumpered for 512K bytes/sector. I believe some of the older Texel/ Plextors will work also. The recommended SCSI ID for SGI CDROMs is ID 4. Another Gotcha... SGI uses scsi ID 0 for it's controller ID, so you should jumper all your scsi drives/devices for id 1-7. ...Good Luck!... -al- -acorda(a)1bigred.com (also acorda(a)geocities.com) > -----Original Message----- > From: Mark Green [mailto:mark@cs.ualberta.ca] > Sent: Monday, November 20, 2000 2:47 PM > To: classiccmp(a)classiccmp.org > Subject: Re: Need SGI Classic Cmp Help > > > > I posted this earlier but never received any response or a > return message > > myself so forgive me if this actually made it to the list and I am > > re-posting........ > > I hadn't seen it either, otherwise I would have replied. > > > > > Just got 2 SGI Personal Iris's 4D/35's today (Thanks again > Tom) and no KB, > > Mouse, monitor for either. Finally got dumb terminal > hooked & working, and > > was pleased NOT to find boot password protection, HOWEVER.... > > I have about 6 PI's, covering most of the models and options. The > 4D/35 was the top of the line. There are basically two generations > of PIs. The first generation is the 4D/20 and 4D/25. The 4D/30 > and 4D/35 were added a few years later. There is considerable > difference between the two generations. For example the memory > architecture was changed rather drastically. The 4D/30 memory is > the same as Indigo memory (but not Indigo2). There were also several > changes in keyboards. In addition, there was an upgrade path from > the 4D/20 to the 4D/30 models, which didn't quite produce an off > the shelf 4D/30. There are a number of very interesting bastard > configurations out there due to the different upgrade paths. Some > of my answers will be kind of vague because of this. > > I would strongly advice getting the console working. The monitor > part is easy, most VGA monitors will work. Depending on the graphics > option that's installed in your machine you should have either a > VGA or BNC connectors (some of the later graphics options used > 13W3 connectors). I've had success with a wide range of monitors. > The standard resolution is 1280x1024 I believe (they came standard > with 19 and 21 inch monitors), but I've used 1025x768 monitors, a > bit fuzzy, but it works. > > The keyboard and mouse is much harder. There were several models > of keyboards used on these machines. What type of keyboard > connector to you have? The popular ones were DB9 and PS/2 (note > I don't think a PS/2 keyboard will work, but I haven't tried). > I can look up the part number tonight when I get home. The keyboards > are not that common, but I have seen them on eBay. The mouse attaches > to the keyboard. > > The easiest way to get these machines running is through the > console. There is a way to set a terminal to be the console, > but I'm not sure how its done on the PI. On some SGIs there is > a hardware mechanism, but on others the console must be use (this > won't help you much). > > > > > > 1 of them still has a working OS, and the other doesn't. I > do not have any > > OS media for them at all, and the one that IS working has > (Of Course) a root > > password which I do not have. What I really need here is a > copy of the > > installation media here. Pleeeaaaasssee Contact me if you > can assist in > > getting these systems running. I believe the 1 with the OS > problem has the > > OS, but has no scsi disk label. Perhaps if someone were to > have a root/boot > > disk they could copy off for me, I could get them working. > I believe they > > run Iris 4.0.somthingorother. > > > > Its difficult to do much without a console, since all the installation > and maintenance procedures assume that you are working through the > console by default. What devices do you have? There are two forms > of the OS media. The older systems were on tape, and the newer ones > were on CD. A may have IRIX 4 tapes at home, which could get you > started. The 4D/35 will run up to IRIX 5.3 (something I recommend), > and the CDs can be found regularly on eBay. Note that these machines > are a bit picky about the CDROM drives they use, older ones are > better. > > It sounds like the previous owner on your second machine wiped > the disk. The lack of a disk label is a good indication that there > is nothing on the disk. Note, these machines can be network booted, > so you could boot from the other machine. > > Do you have access to any of the accounts on the first machine? > Quite often the guest account had no password, so you could > try that. If you are successful, run hinv to get your machine's > configuration. > > If you have a console the easiest way to change the root password > is to boot a mini-root (this may be on partition 8 of your disk). > From there you can modify the /etc/passwd file. > > SGI tended to use there own file system structures, so you may > not be able to read the disks on other UNIX systems. > > Let me know if this helps you. My machines are at home, so I > can provide any detail until tonight. One word of warning the > 4D/30 series machines had a habit of catching fire. The CPU > used in the 4D/30 machines generated much more heat than the > 4D/20 machines, and the cabinet really wasn't designed for them > The upgrade included an extra fan. If any of the fans fail the > system overheats. Also run with all the skins on for better > heat flow. One of the 4D/35s I had a work caught fire one > day, filled the room with smoke. > > PS: Are there other SGI collectors on the list? I have a fair > amount of documentation on the early systems, I also have a > working 3130 at home. > > -- > Dr. Mark Green mark(a)cs.ualberta.ca > McCalla Professor (780) 492-4584 > Department of Computing Science (780) 492-1071 (FAX) > University of Alberta, Edmonton, Alberta, T6G 2H1, Canada >

25 years, 9 months

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Other CBM trivia?

by jjackson＠salsa-digital.com

I also have a couple of the CBM books on PET BASIC that were printed very early on. I'm doing this from memory, but I believe that one of the authors was Adam Osborne (of the same Osborne computer fame?). I also have a very early book by him about computers and computing in general. It was used as a 'textbook' for a class I took at a junior college here called 'Microcomputer Kit Building'. All of the students were required to start assembling a computer - some even completed their kits. I was about middle-way through with my SwTPC 6800 kit at the time. It was a really cool class - I didn't understand very much of it - way over my head at the time. <grin> Regards, James Jackson

25 years, 9 months

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CP/M on the TI-99/4A

by Glenatacme＠aol.com

In a message dated 11/18/2000 10:36:35 PM Eastern Standard Time, spectre(a)stockholm.ptloma.edu writes: > For people who > don't know what one is, visit > > http://www.retrobits.com/ckb/secret/pet.html Hey Cameron: Thanks for posting this -- I'd never heard of this machine and it looks like a lot of fun. A $199 system with support for five mainstream languages? Seems like they could have sold a million of them just to developers and students . . . Glen 0/0

25 years, 9 months

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Boot CP/m-86 on an IBM XT

by ncherry＠home.net

How does one get CP/M-86 on a bootable disk? BTW: the IBM XT is now working (even the Seagate drive), it has DOS 3.30 on it. I'm going to clean the floppy and lube the rails a little later to make sure it's in OK condition. -- Linux Home Automation Neil Cherry ncherry(a)home.net http://members.home.net/ncherry (Text only) http://meltingpot.fortunecity.com/lightsey/52 (Graphics) http://linuxha.sourceforge.net/ (SourceForge)

25 years, 9 months

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Cursor Tapes (was Re: CP/M on the TI-99/4A)

by ethan_dicks＠yahoo.com

--- Sellam Ismail <foo(a)siconic.com> wrote: > Speaking of which, I just received the complete set of manuals for the > Waterloo languages this weekend. I also got the SuperPET manual (and > while I'm at it, the first 30 tapes of the Cursor software library...I'm > sure Larry will take notice, unless he already has all of them, which I > think he does :) Does this mean that there are any .T64 files for these? I only have a couple of Cursor tapes, but love to use them to show off what the PET can do (either on the real hardware or on VICE). If there's a place to nab these, I'd love to know about it. If they need to be made, I'd be glad to help (I have a Datasette on a parallel cable and a 486 I use for tape slurping). -ethan ===== Even though my old e-mail address is no longer going to vanish, please note my new public address: erd(a)iname.com The original webpage address is still going away. The permanent home is: http://penguincentral.com/ See http://ohio.voyager.net/ for details. __________________________________________________ Do You Yahoo!? Yahoo! Calendar - Get organized for the holidays! http://calendar.yahoo.com/

25 years, 9 months

2
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Commodore Series B-128

by jjackson＠salsa-digital.com

All this talk recently, reminds me of the computer that I just had to have... the B-128. I always liked its' looks, and finally found one many moons ago, so I bought it. It turns out to be a really neat computer... too bad C= didn't promote it. (I think that they must've had many new ideas at the time, and weren't sure which ones to pursue.) Anyway, I linked it to an 8050 floppy drive, and played with it for a bit. I soon grew tired of it (well, not really - just needed the space), and sold it to a fella locally. He probably still has it in storage, too. I had invested much in this computer - getting the schematics for it, and other documentation. It was sort of a cross between a C-64 and PET80xx(?) seies computer. Was real fast at 2-Mhz, and would run many of the C-64 programs straight out - provided they didn't get too graphics intensive. I used to do timings between the B-128 and my ol' C-64. Ahhh... those were the days. Regards, James Jackson

25 years, 9 months

2
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AppleTalk over NT

by RCini＠congressfinancial.com

Doug: I got the Mac services working. Apparently it wasn't a problem on the Mac side. The one item that the NT manual left out is that the directory in which the UAM volume resides has to be shared and have the permissions set. I found a Web page dealing with this setup. So, when I shared the directory on the NT Server, the directory was visible by the Mac client. All machines are on the same subnet. The NT Services for Mac is set with routing enabled because there are no other Mac servers on the net. This is per the SFM docs. Thoughts? Now, I need to get printing working. I have a PS laser printer connected to the server. Is shared printing a possiblity? >> Re-reading the NT docs, I'm supposed to see the >>AppleShare icon in the >> Chooser, which I don't. I only see AppleTalk. Hmmm... >>??? I was having all sorts of problems at this point. In the MacTCP control panel, I would only have LocalTalk and no Ethernet. I rebooted and reinstalled from the Network Installer disk and then the Asante disk. Then, EtherTalk appeared. Originally, in the Chooser, when I selected AppleShare, no zones showed-up (which was fixed by the above). I've been using TransMac to move disk images to the ci. Moving them across the network doesn't work because the type/creator information is not moved. As far as I can tell, neither TransMac or HFV work with remote (network) drives, so I can't get their translation benefits. Also, using a null-modem setup doesn't transfer the credtor information. So, the transferred programs are not usable. So, I've been relying on TransMac 4.1c which works well. I'm making images of System 7.5.3 plus the update. I also want to get Web access on that machine. I've got a simple browser, an email and telnet program moved over, but I have to work on the broadband access. I have a cable modem connected to a NAT firewall. All internal machines are on the same subnet with the firewall (192.168.1.x). Could you make me a BinHex or SEA image of the 3.6.4 client disk? Thanks. Rich ========================== Richard A. Cini, Jr. Congress Financial Corporation 1133 Avenue of the Americas 30th Floor New York, NY 10036 (212) 545-4402 (212) 840-6259 (facsimile) -----Original Message----- From: Douglas Quebbeman [mailto:dhquebbeman@theestopinalgroup.com] Sent: Friday, November 17, 2000 1:26 PM To: 'classiccmp(a)classiccmp.org' Subject: RE: AppleTalk over NT > Does anyone have any experience with Mac-NT compatibility? I want the Mac > to have access to my NT server so that I can move large files across my home > network which is decidedly Windows-based. I run Services for Macintosh for a very few legacy Macs here... > Here's the setup. NT4 Server has the Services for Macintosh installed. The > NT configuration is set for routing, seeding the network, and a node range > of 11-254. Ok, I don't have SFM set for routing. It's simply bound to the Ethernet adapter. In that mode, the NIC is in the "default zone". > The IIci has an Asante NuBus Ethernet card which passes internal > diagnostics and indicates "link". So, I know the connection to my hub is > good. Ok. > I have the AppleShare 3.0.1 client installed. The ci runs System 7.0.1. > Re-reading the NT docs, I'm supposed to see the AppleShare icon in the > Chooser, which I don't. I only see AppleTalk. Hmmm... ??? I don't see AppleTalk in the Chooser; I see AppleTalk in Control Panel. In Chooser, I see icons for each type of printer driver I'm using, and I also see the AppleShare icon. However, none of our legacy Macs are that old; System 7.5.5 is the oldest in use, OS 8.1 the newest. ISTR that AppleShare Client 3.6.4 is the oldest version of the client in use here. > I configured the MacTCP to point to my firewall for Internet access. Maybe > this should point to the NT Server? It's a private subnet configuration > where the NT server is for file and print sharing only; the Internet > connection is through a broadband firewall/router. NT Services for Macintosh doesn't have the capability introduced in the AppleShare Fileserver IP 5.0 that permits clients to make connections over TCP/IP; and the earliest AppleShare Client that supports the TCP/IP connections is 3.6.4 (we had to make that the baseline while we were still running a Mac fileserver). If you're trying to access the NT Server across anything other than the LAN that the NT Server's NIC is connected to, you're out of luck. No bridges, routers, etc. Additionally, you have to create a directory somewhere, share it for access by Windows clients, then use NT File Mangler to create a Mac Volume from that shared directory before the macs can see them. But it sounds like you're having trouble before you get that far. Hope some of this helps... -dq

25 years, 9 months

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intro and RML380Z

by kebabthesheep＠yahoo.com

--- Don Maslin <donm(a)cts.com> wrote: > > David, I cannot help you in the documentation arena, > but if you > have access to TeleDisk and a PC with 5.25" floppy > drive - > preferably 360k - I will email you any or all of the > following > disk images: > > Research Machines Limited > > Name Format Description > RML14B31 SSSD CP/M 1.4B (31K) system disk > for 380Z > RML14B56 SSSD CP/M 1.4B (56K) system disk > for 380Z > RML22C31 SSSD CP/M 2.2C (31K) system disk > for 380Z > RML22C3R SSSD CP/M 2.2C (31K) system disk > for 380Z (reformatted) > RML22C56 SSSD CP/M 2.2C (56K) system disk > for 380Z Um, yes please! I've downloaded a 'teledisk' shareware thingy. I'll give it a blast :) Please can you mail me any/all images you have? I have a dual 3 1/2" + 5 1/4" drive, but I can maybe I can use one of the drives out of the RM if it doesn't do 360K correctly? I'd better check on that one... Cheers, Dave. __________________________________________________ Do You Yahoo!? Yahoo! Calendar - Get organized for the holidays! http://calendar.yahoo.com/

25 years, 9 months

1
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intro and RML380Z

by kebabthesheep＠yahoo.com

--- Pete Turnbull <pete(a)dunnington.u-net.com> wrote: > > I think I have an RML380Z CP/M disk somewhere here. > I suppose I could make > an image copy, but I'm not sure if it's bootable. I > know it has ZASM and Excellent - I'd like a copy of anything you have for it, if you would be so kind :) > various utilities on it. I'd bet Don Maslin has > boot disk, though. > > I also have 12 A4 pages of circuit diagrams for the > 380Z, and a photocopy > of the appendices to the TXED manual, if they're any > help. > No *that* would be useful. Are they in an electronic format? > Pete Peter Turnbull > Dept. of Computer Science > University of York Would that be York UK, or USA? Dave. __________________________________________________ Do You Yahoo!? Yahoo! Calendar - Get organized for the holidays! http://calendar.yahoo.com/

25 years, 9 months

1
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Confessions of a classic computer junkie

by LFessen106＠aol.com

In a message dated 11/20/00 9:33:56 AM Eastern Standard Time, dogas(a)bellsouth.net writes: > > Heh.. I've had a few private emails assuring me my home decore was not > unique. ;) > > Cheers > - Mike: dogas(a)bellsouth.net > > > I was happy to see your pics as well. In fact I can't wait to show them to my wife... She thinks MY collection is bad :-) -Linc Fessenden

25 years, 9 months

1
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Confessions of a classic computer junkie

by dogas＠bellsouth.net

25 years, 9 months

2
2
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Love 'em or hate 'em...

by LFessen106＠aol.com

In a message dated 11/19/00 7:18:14 PM Eastern Standard Time, pechter(a)pechter.dyndns.org writes: > > > I figure we need a support group in NY and area. Drink coffee, whine > > > about systems we've not the space for, and drink more coffee. :) > > > > Sounds good to me. > > > > -Dave McGuire > > Well... I'm in central New Jersey (near Freehold and Asbury Park). > > Bill > And I am in Eastern Pennsylvania (Allentown). -Linc Fessenden

25 years, 9 months

1
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HP Questions

by jate＠uwasa.fi

Hello! I have a couple of HP related questions. I started thinking about these while I was scanning all the 9000/500 docs that I have and in HP 27110B HP-IB card manuals I saw a sentence similar to this "..supported in all HP computers with CIO bus..". 1. Which machines had the CIO bus ? I know of 9K/550, 520 and at least some version of the bus in some 800-series machines. 2. I know about 200/300/400/500/700/800-series but what is 9000/600 which I've seen in a couple of manuals. 3. Is the HP 7970 tape drive vacuum column or one of these newer streaming devices (like the 7974A). And extra bonus-points for the person who recognizes the app in the cover of the HP 9000 550 manual at http://www.tec.puv.fi/~s99137/kuvat/cover.gif And a couple of low-quality "recognize the peripheral"-pics at: http://www.tec.puv.fi/~s99137/kuvat/uudet/ (none of those are mine, btw.) Particularly cipher.jpg, HP2000[12].jpg, nauha.jpg, hp3kcons.jpg. TIA, -- Jarkko Teppo | Lahjoita HP 7933:n levypakka hyv??n kotiin! jate(a)uwasa.fi | :wq! |

25 years, 9 months

2
2
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Need a source for Type 7772 / 7770 , Dry Silver Paper

by ceohb＠kornet.net

Dry Silver Paper of Type 7772, 78-6577-2000-5 or Type 7770 are used by recorders of Medelec and Tektronics ! M3's Immaging Division were tranfered to Imation, who discontinued Dry Silver Paper production end of 1999. Type 7772 Data: Roll-format 8.5" x 131', Papers thickness 0.0044" (incl. coating) Core I.D.: 2.225" +/- 0.005". Winding: CSI (coated side inward), Are there probably any substitute for the product available ? Hwo has mor than 40 ea rolls onhand available ? Appreciate any available information, Regards HGR

25 years, 9 months

1
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Love 'em or hate 'em...

by mcguire＠neurotica.com

On November 19, Tim Harrison wrote: > > Jeeze, I'm jealous. Here on the east coast things are much more > > bleak hamfest-wise. > > Where are you, Dave? For some reason, I thought you were out west. I'm in Laurel, MD, right off of the stretch of Route 95 that connects the DC and Baltimore beltways, just south of the middle. > I just finished part of my move back to New York from Toronto. I say part > because of some fishy dealings with an prior landlord here, who said that > our old apartment was available, then rented it once we had sent our > money. So, we're staying at a friend's place, with all of our stuff in > storage. Eeeeeeek!! Sounds like some legs need to be broken. > I figure we need a support group in NY and area. Drink coffee, whine > about systems we've not the space for, and drink more coffee. :) Sounds good to me. -Dave McGuire

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Confessions of a classic computer junkie

by kees.stravers＠iae.nl

On 2000-11-19 classiccmp(a)classiccmp.org said to kees.stravers(a)iae.nl cl>;) I recently moved and was missing the ole place... and ran cl>across some (aged, because there was apparently *some* room to move cl>around in ) digital snaps. Since there were alot of old systems cl>in the pics, thought I'd share them...(about 60k a piece) cl>http://personal.lig.bellsouth.net/~dogas/ You made me very happy. Sometimes, when I have trouble moving around in my own house, I think, I can't be the only crazy guy who lives like this. Thanks to your pictures, now I'm sure I'm not the only one with a house like that! :) You even had a pinball machine too. I hope it survived the move. Kees. -- Kees Stravers - Geldrop, The Netherlands - kees.stravers(a)iae.nl http://www.iae.nl/users/pb0aia/cm/ My Computerhome page http://www.vaxarchive.org/ Info on old DEC VAX computers Net-Tamer V 1.08.1 - Registered

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Love 'em or hate 'em...

by mcguire＠neurotica.com

On November 16, Mike Ford wrote: > >> Wonder what happened to the swapmeets/hamfests/etc? > > > > Hamfests? Hah. Hamfests turned into "new taiwanese PC clone hardware > >dealer fests" years ago. > > Not so in SoCal, the four regional hamfests, Santee, Fontana, Pomona, and > TRW, all are old style drop the tailgate, empty the trunk events. Real > "dealers" are less than 50% of the crowd and a good half of them are radio > related or tools. > > Computer fairs are the only all dealer events, and we even still have quite > a few local swapmeets that are at least 25 to 50% casual sellers. Jeeze, I'm jealous. Here on the east coast things are much more bleak hamfest-wise. -Dave McGuire

25 years, 9 months

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VMS BBS network

by mcguire＠neurotica.com

On November 18, Billy D'Augustine wrote: > > Also most importantly is anyone > > seriously interested in this? > > I'd be interested! You know, call me crazy, but I think I'm interested as well. Yeah. I, too, miss the dialup BBS days, and it'd be neat to do something even remotely like that again. I ran the Mercerville RCP/M system for about three years up near Trenton, NJ, when I was in high school...I shut it down in 1987 in favor of putting my pdp11/34a (running RSTS/E) on a dialup line for my friends to hack on. My favorite part of the whole old BBS scene were "storyboards". Anyone remember those? Of course, the concept could be approximated with netnews, but it's just not the same. Having a specific interface designed for that sort of writing...chapter navigation, stuff like that...is really, really nice. I tried to bring up another BBS many years ago (1990 or so) on an AT&T 7300 (UnixPC, 10MHz 68010, 512K, SysVr2). I ran a program called "unaxcess" which I really liked. Has anyone here ever seen it? -Dave McGuire

25 years, 9 months

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Women and Classiccmp

by ajp166＠bellatlantic.net

.From: THETechnoid(a)home.com <THETechnoid(a)home.com> ..>It is statistically interesting that the minority of women on the list >produce such a disproportionately large fraction of the quality traffic on >the list. Was DEC a particularly liberal company when it came to hiring >able women? This might be the beginning of a nice lesson in company >history. . Briefly, DEC and a lot of determination. I was in engineering for over ten years before that. DEC was a very good place to work. As was NEC (when they were in Wellesly and Natick). Some other places I have less fond thoughts of. The determination part is not new to anyone here, you find something interesting and you do it. That do it part is despite naysayers or other attempts to discourage. Allison Allison

25 years, 9 months

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intro and RML380Z

by kebabthesheep＠yahoo.com

Hi, as is customary for many a mailing list, I should introduce myself first. My name is David Rowntree, I am a systems engineer, working for Philips Semiconductors, based in Southampton, UK. My interests centre mainly on UNIX systems, but I like anything computational and old. I recently found my Research Machines 380Z in a pile of junk, and got interested in it again. For those who don't know, its a Z80 based CP/M machine sold in the UK, mainly to schools and other educational establishments. Mine came from Imperial College, London, where I studied for my Meng in Electronic engineering. The box in question is a RML-380Z-D model, with dual 5 1/4" drives, and I think, 32K RAM. It has two video boards (I believe this is the hires option) and an additional ram board(cpu board with most bits removed) an analog i/o card, and seems to have firmware 'COS4.2A' The date of the box is '83, and is complete with its keyboard, and even the dust cover! Unfortunantly - NO SOFTWARE AT ALL. Not even cp/m :( I know next to nothing about this box, so my query: Does anybody have the system disks? How about documentation of the firmware? I've found various bits of cp/m source, but nothing specific to the 380z. I believe it ran cpm2. One other point - I believe you hit 'b' to bootstrap the floppy - when I do this there is NO disk activity (even with a floppy in the drive) I've tried both drives, and both cable positions. The drive psu gives stable volts, so that's not the problem. I'm sure it should do something! There is an LED on the floppy controller, it flashes with a kind of 'heart beat' pattern i.e. Flash-flash--pause--flash-flash--pause etc. Anybody know if this is normal? You guys are possibly my last hope - I've spent a total of over 20 hours scouring the web for info, and have come up with very little. I'd like to get as much on this box as possible, for preservation reasons - and so I can build a website about it. Many thanks in advance for anybody who can help me out! Dave. __________________________________________________ Do You Yahoo!? Yahoo! Calendar - Get organized for the holidays! http://calendar.yahoo.com/

25 years, 9 months

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Resistance is useless!

by Mzthompson＠aol.com

Dear Mr. 9000, HAL, you seem to be using the wrong AlGorerhythmn. You say that 'Resistance is useless', when it should be 'Resistance Is Futile'. As in: "We are Microsoft. Resistance Is Futile. You Will Be Assimilated." Unless of course there is some sort of mental aberration, as in: "I am Dyslexia of Borg, fusistance is retile. Your ass will be laminated." I would ask that you incorporate the following lines of program code so that things are done right in 2004. Can we count them with our nose? Can we count them with our toes? Should we count them with a band? Should we count them all by hand? If I do not like the count, I will simply throw them out! I will not let this vote count stand I do not like them, AL GORE I am! Can we change these numbers here? Can we change them, calm my fears? What do you mean, Dubya has won? This is not fair, this is not fun Let's count them upside down this time Let's count until the state is mine! I will not let this VOTE count stand! I do not like it, AL GORE I am! I'm really ticked, I'm in a snit! You have not heard the last of it! I'll count the ballots one by one And hold each one up to the sun! I'll count, recount, and count some more! You'll grow to hate this little chore But I will not, cannot let this vote count stand! I do not like it, AL GORE I am! I won't leave office, I'm stayin' here! I've glued my desk chair to my rear! Tipper, Hillary, and Bubba too, All telling me that I should sue! We find the Electoral College vile! RECOUNT the votes until I smile! We do not want this vote to stand! We do not like it, AL GORE I am! How shall we count this ballot box? Let's count it standing in our socks! Shall we count this one in a tree? And who shall count it, you or me? We cannot, cannot count enough! We must not stop, we must be tough! I do not want this vote to stand! I do not like it, AL GORE I am! What's that? What? What are you trying to say? You think the current count should stay? You do not like my counting scheme? It makes you tense, gives you bad dreams? Foolish people, you're wrong you'll see! Your only care should be for me! I Will not let this vote count stand! I do not like it, and AL GORE I am! Sincerely, G@K

25 years, 9 months

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BBS's

by ajp166＠bellatlantic.net

From: Zane H. Healy <healyzh(a)aracnet.com> >>the phone network. Hey you VMS bigots, how bout some Decnet over IP? >>Endless possibilities. > >Wait a minute.... Who you calling a VMS bigot! I seem to recall you're >pretty heavy into VMS! Feh, ip over DECnet! >Using VMS you'd have mail and DEC Notes at least. Plus it's possible to >setup dialup access. The question is, how secure is DECnet over IP? Can >you send it via an encrypted link? I've not read up on it yet. Extremely secure if IP is done right. DECnet is good in itself. Doing it as wrapped decnet would be hard for outsiders to crack unless they knew it was DECNET inside. It's basically VPN. FYI, back in the old days (early 90s) DECNET was used to wrap appletalk and Novell so it could be run over wans (DECNET is routable). Allison

25 years, 9 months

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HP 9815A question

by ss＠allegro.com

Hi, I recently received an HP 9815A ... working, except that the display is dead. (I.e., I can enter numbers, do calculations, and print the results on the integral printer.) Does anyone have experience with this machine? The display (about 5 or 6" wide, 1" tall) is a Burroughs Panaplex II, with the following markings: Kr 85 BR 16252 An odd little pointed glass cone juts out of the back of the panel, in the center. thanks, Stan Stan Sieler sieler(a)allegro.com www.allegro.com/sieler/wanted/index.html www.allegro.com/sieler

25 years, 9 months

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New IIci

by RCini＠congressfinancial.com

Hello, all: Yesterday, I received my first modern Mac, a IIci. It comes with 8mb of RAM an Apple TokenRing card and the Workstation Display card (Apple# 630-4179). The monitor is the 12" hi-rez monitor. It runs System 7.0.1. I have a few random questions... The workstation display card has a 13W3 connector on it. I understand that if you use an external display adapter, you can reclaim some system RAM by disabling the built-in video. Is this true? If so, How can I connect the 13W3 to the Hi-Rez monitor which has a DB15 connector? I looked in some catalogs, but there doesn't seem to be an adapter made for this. The TokenRing card is useless to me, so it's up for trade. I installed an Asante ethernet card, but I still have to install the driver for the card, which I downloaded to my PC. I'm going to use TransMac or workalike to transfer to 1.4m diskette. What is the best internet browser for this configuration? I have a cable modem connection, so dial-up is no issue. Like I said, it has 8mb of RAM. I have a few random 30-pin PC SIMMs laying around. Can I typically use these? What should I watch for? The ci also has an X-eyes-like application that shows-up on the menu bar. I looked in the usual places for where this could be installed, but I can't seem to find the file. There's also no configuration menu to disable it. If I can't find it, no big deal, but I'd like to disable it if I can. Again, the token ring card is up for trade. If anyone's interested, contact me off-line. Thanks again. Rich ========================== Richard A. Cini, Jr. Congress Financial Corporation 1133 Avenue of the Americas 30th Floor New York, NY 10036 (212) 545-4402 (212) 840-6259 (facsimile)

25 years, 9 months

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