test-drb March 2001

test-drb@ccmp.vtda.org

214 participants
552 discussions

by spectre＠stockholm.ptloma.edu

Will an Apple 300i external SCSI CD-ROM work with a Sun? I know this has been talked about here before but I don't remember what the verdict was or if any modifications can be made. -- ----------------------------- personal page: http://www.armory.com/~spectre/ -- Cameron Kaiser, Point Loma Nazarene University * ckaiser(a)stockholm.ptloma.edu -- Let us live! Let us love! Let us share our darkest secrets! ... you first. -

24 years, 1 month

AAUI

by jruschme＠mac.com

>From: Mike Ford <mikeford(a)socal.rr.com> >Subject: Re: AAUI > >> Apple can't be blamed for the lack of drivers for various >>cards though. I have used any number of PC PCI boards in my PCI >>Mac's, including USB, Firewire and video boards. The slots >>themselves are compliant with the PCI standard. It's just a matter >>of lacking 3rd party drivers. Creative Labs is releasing a Mac >>version of it's SB Live, NVidia has done Mac versions of it's >>Geoforce boards, 3Dfx did Mac versions of it's Voodoo4 and Voodoo5 >>boards just before they went under, and Adaptec has done Mac versions >>of many of it's SCSI boards. > >My back still hurts, so I'll keep typing.... > >Sure I can blame Apple for the lack of drivers, if stinking Apple wrote a >"generic" driver or even published a stable API for its non standard PCI >byte swapped version of PCI then plenty of cards would have worked on the >mac. As it was, ONLY a handfull of often third parties ever bothered to >write a mac driver for a PC PCI card, and mac users paid through the nose >for those items. To some degree, though, I wonder if there isn't a supply and demand issue in effect. For instance, I've never gotten why no one has written a 3rd party OpenTransport driver for common PCI Ethernet NICs such as the EtherLink III or the cheap NE2000 clones. Apple has published sample driver code and the board-level code is public enough from NetBSD or Linux, yet no one has ever put the two together. From what I can tell, the same is the case over in the PCMCIA world with few cards having MacOS support. >Firewire was always an Apple first product, my guess is that some PC >products may have Apple ancestry in the driver code or at least high level >design. Sort of true for USB, except in the PC world about half the cards >meet the open standard that is what Apple drivers recognize, and half don't >and hence won't work with Apple drivers (nobody "really" AFAIK makes a >Apple specific USB driver). OHCI (supported by Apple) versus UHCI. Ironically, I find that a lot of the cheapest cards are the compatible ones. >PCI Video cards I follow pretty closely, and MAYBE a total of 10 cards work >with macs, with half of those being somewhat generic PC PCI cards. Not >moving closer to the AGP PC standard was killing Apple video performance, >so maybe the latest macs have better compatibility, I don't know the >details of that however. Video cards are the worst since it is not only a matter of drivers, but also of firmware. As I understand it, a video card has to have OpenFirmware code for it to be usable. >Oh happy day, we get the two year old most overpriced PC sound card, >without all the features, finally for the mac. Okay, but why do I want it anyway? >I have fun with old macs, I currently use a Starmax for daily stuff, but I >am moving to daily PC use because I am sick of browsers on the mac that >don't work. In a word, javascript, love it hate, heck I don't even know >exactly what it is, but it doesn't work on mac browsers and that means many >pages I want to access I can't. I'm curious... what browser versions have you had the problem with? iCab aside, I've had less trouble with Javascript implementations than with sites that arbitrarily lock out non-Windows users, even if the site would otherwise work. <<<john>>>

24 years, 1 month

Request for suggestions that would be OT if not for the fact that it is VCF related ")

by vcf＠siconic.com

I would like to find some sort of mapping software that will allow me to input a set of longitude and lattitude coordinates and a mileage radius >from that point, ideally backset with the boundaries of the US States where the coordinates lay. What I am hoping to get is a visual of the preponderance of data points. If you took the VCF East survey (http://www.vintage.org/survey.html) you'll remember that one of the questions was to the effect of "you would come only if it is within X miles" where X was a number you input. So I would like to see where most of the data points and their radius areas intersect. If anyone has any suggestions for some free mapping software of this ilk, please e-mail me privately <sellam(a)vintage.org>. Otherwise I guess I'll just have to write me some :) Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org

24 years, 1 month

DEC 8MB parity 80 pin SIMMs... what are these from?

by ethan_dicks＠yahoo.com

I was at the Dayton Computer show last weekend (at the Hara Arena, same place as the Dayton Hamvention) and picked up a handful of, I thought, 8MB parity SIMMs. They are, but they happen to be 80-pin, not 72-pin. So... what strange DEC gear uses them? Old AXP boxes? Old MIPS boxes? -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!? Get email at your own domain with Yahoo! Mail. http://personal.mail.yahoo.com/

24 years, 1 month

Who can tell me more about this really weird Z80 Canadian built computer...

by claudew＠videotron.ca

Hi Well today was kinda slow I guess....finds: 1 fully equipped C128 -1541 II and both P.S.s...$10 1 1084S monitor $5 (cant pass them up at that price even if I have about 10 of these...) This is a "weird" (I refuse to use L@@K RARE! because of its over use on ebay) one: 1 AES 7100 Office System. Obviously a Z80 machine from the early 1980s. >From AES a Montreal, Canada company (local stuff!) 1 know of one other non-active collector (still collecting?) who has one. He put up photos so Ill post the URL for there so you can have a look at it and maybe tell me more about this thing: http://www.total.net/~hrothgar/museum/AES7100/ Its the exact same computer. Mine is in terrific shape but I dont have the manuals like this guy does. I do have 2 original boot disks that I was told will boot (to what?) the machine....have not tried it yet... These are "hard sectored" 5 1/4 disks...eeesh...and I only have the 2 original ones...ooooh The look of this computer is very "Space 1999ish" if you ask me... Perhaps this person has already posted here about this machine but I taught I would try again and maybe perhaps something new will come up... Claude Canuk Computer Collector http://computer_collector.tripod.com

24 years, 1 month

Adding Fibre to network diet

by pete＠dunnington.u-net.com

On Mar 24, 18:25, Mike Ford wrote: > I was at Micro Center last night (in So Cal) and they had a stack of grey > flip top bins with a 99 cent cable sale. Since I have thousands of cables > at home I pawed through it to the bottom of the four bins on top and peeked > into one of the bins below. Lots of AC power cords, but I did pull out > about a 20' section of some kind of fibre. Since I know a have a AUI FDDI > type mau's I am guessing putting a section of fibre in my ethernet network > is fairly practical. Any suggestions on how to do it? FDDI is a ring system, not point to point like FOIRL and 10baseFL, and it's *not* Ethernet. It uses different protocols. I can't remember if you can have a ring as small as 2 nodes, but I don't see why not. Anyone? What kind of fibre it is (backbone or patch lead; 50/125 or 62/125 multimode or single mode)? Is the fibre terminated with suitable connectors? If not, it won't be cheap to get connectors put on the ends. Is it damaged (rudementary test by shining a bright light down it, though that will only tell you if it's really badly damaged, it won't tell you much else about losses). IIRC, FDDI uses lasers rather than LEDs (FOIRL and 10baseFL use LEDs) so don't look into them! If your MAUs really are FDDI, take a look at the FDDI FAQ at http://www.cicese.mx/~aarmenta/frames/redes/fddi/FDDIFAQ.html and the FDDI tutorial at http://www.iol.unh.edu/training/fddi/htmls/index.html. -- Pete Peter Turnbull Network Manager Dept. of Computer Science University of York

24 years, 1 month

5 People for NeXT equipment so far...

by curt＠atari-history.com

Ok... So far since my email myself and 4 others are interested in the equipment, I emailed the seller and asked if I could pay in advance by PayPal to secure the equipment and arrange for next weekend to drive down and pick it all up. I personally want dibs one 1 cube, monitor and color printer, so there is still a ton of stuff left, anyone who wants to join on, please resond back, the more the merrier and everyone will walk away with some great equipment & software for great prices, so reply and lets build up the list, please only respond if your serious and will follow through, I'm putting $1,000 out of my pocket on this to secure all of this stuff for everyone, please be curteous and not back out. Curt

24 years, 1 month

Apple LC550

by broth＠heathers.stdio.com

I just received a load of Apple MACS. Among them about a half dozed LC550's from a school. They work great except they are password protected except the student accounts. Is there a way to bypass the password protection on these or will they need an operating system reload? What is the latest that these will run. They have 7.5.3 loaded now. Brian.

24 years, 1 month

Batteries for Sharp PC-45XX Still Sold

by jerryjh＠imt.net

A few weeks ago, I requested information about a battery for my Sharp PC-4502 (a portable PC from the mid to late 1980s), yet received no replies. The original batteries made for the Sharp PC-45XXs were from Yuasa, which no longer makes them. The main problem with this battery is its odd shape; other batteries have similar specifications, but will not fit inside this portable PC. Just as I was about to give up, I simply did a Yahoo search on Sharp batteries and the PC-4502 and found a source! If anyone needs a battery for these machines, go to The Raymond Sarrio Co. at http://www.sarrio.com -- and if you specifically need a battery for a Sharp PC-45XX like mine, go to this site: http://www.sarrio.com/sarrio/laptopsh2sy.html Phone: (800)413-1129 FAX: (508)355-8261 I bought the battery for only $49.00, including free 3-day air mail! (They used to cost around $75.00.) The AC adaptors are also listed alongside their batteries, in case you need one of those, too. These folks can also make a lot of batteries, if for some reason they don't have your exact make. So there *is* still hope for old machines when you least expect it. Jerry... on his IBM PC/AT 5170 Model 339 | My laptop computer's a ***** 9600kbps/30MB HD/512k RAM/8 MHz | Tandy TRS-80 Model 100 Net-Tamer V 1.11.2X - Registered

24 years, 1 month

10Base5/Thicknet (was Re: SUN networking problems)

by pete＠dunnington.u-net.com

On Mar 24, 20:24, ajp166 wrote: > From: jpero(a)sympatico.ca <jpero(a)sympatico.ca> > > > I haven't been following this thread as close as I should. > > > I was working at Intel during the period when ether net was just > > > being defined. The reason for the 2.5m spacing was to insure that > > > any collision was detected by all of the unit on the wire. > > > The idea was that the pulses would be exactly overlapped. This was > > > > In that case, surely the correct spacing of transceivers would depend > on > > the velocity factor of the cable. And while the stnadard specifies the > > spacing (2.5m +/- 5cm IIRC), it doesn't specify the velocity factor > > (other than it must be greater than 0.77 IIRC). > > I recall that in musical stuff and in wirings often these waves > travelling in any tube or wirings tend to be standing waves that why > that marking is where the amptitudes is greatest. That can't be the case with 10Mb thick ether because the distance between markings is about 1/9th of the wavelength. I did find one thing that relates back to something Bill mentioned in an earlier post about specific lengths. >From http://www.ots.utexas.edu/ethernet/10quickref/ch3qr_4.html The specifications note that the thick coaxial segment should ideally be built using a single piece of cable from the same cable spool or from cable spools all manufactured at the same time (known as a cable lot). If cable from different lots is used to build up a thick coax segment, then the specifications note that the sections of cable used should be 23.4 meters, 70.2 meters, or 117 meters in length (all lengths may be +/- 0.5 meters). The reason for using these lengths of cable is to minimize the chance of having excessive signal reflections build up due to the slight variations in electrical characteristics that can occur between different cable manufacturers or cable lots. The basic distance quoted is the same as the distance I calculated yesterday for one bit time: 23.4m. -- Pete Peter Turnbull Network Manager Dept. of Computer Science University of York

24 years, 1 month

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test-drb March 2001