test-drb

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101090 discussions

by franke＠sbs.de

> mac128k in box for $260? hmmm > I have the same,except my mac has a rare documented upgrade board that > basically turns it into a mac+ complete with scsi. oooh, and i have IW2 in box > also. mine's worth $1000! lol I was in, but the price sored to a laughter ... To many rich jerks out there. Gruss H. -- Ich denke, also bin ich, also gut HRK

27 years, 10 months

Emulation or the real thing?

by allisonp＠world.std.com

< John Foust <jfoust(a)threedee.com> wrote: < > This reminds me of a claim I hear in Y2K discussions, but can hardly < > believe: that businesses are running the same *executables* since < > the 1950s/60s/70s, and that they don't have the source code to fix it. < > Sure, they might not have the source to the OS, but their own apps? Actually this is more common that you'd think. Many cases the company didn't write the code, they contracted for it or it's a canned application. In most of those cases they never had the source! Then the people that had the source go out of business and the code is effectively lost. I worked for a company that had to sue to get the source for an app they used for some 5 years so they could fix a bug! The bug was that RSTS-11 upgrade cased the app to crash. They needed the upgrade to keep the hardware and OS service contract alive on an 11/34 that ran the place. Allison

27 years, 10 months

Emulation or the real thing?

by dburrows＠netpath.net

>< I'm still skeptical. I'd love to hear more first-hand reports of >< the oldest code still running as-is. Come on, code from the 50s >< that's never been replaced? Running on what? Under an emulator? > >Ok, howabout a Brigeport milling machine with the PDP-8E it was purchased >with in 1975, still running the same code. How about a major circuit board mfg that has 20+ PDP11/04 and 11/24's that could not even tell me what operating system they were running. I was and still am suppling them with parts to keep the systems running. It took me a while when I went on a service call there to figure it out. DOS11 beleive it or not. With RL01 and RL02's some of the systems only have paper tape. They are using the systems to control routers, drills and test sets. They also wanted to know about possibility of Y2K compliance - no sources, DOS11 had no RL drivers so the must have written their own. Dan

27 years, 10 months

OT: Modern college educations

by dburrows＠netpath.net

> >More people should insist on proper documentation. On a couple of >occasions I've returned a device to the shop that sold it under the UK >sale of goods act. The reason? It was not fit for the purpose that I >bought it for because important documentation (register maps, connector >pinouts, etc) was not available. Alas I doubt if the company ever >realised or cared.. I sure wish they had those laws here in the US. The only to get documentation is to make it a line item on the purchase order and hold back payment until the PO is complete. Dan

27 years, 10 months

Units of measure (Was: discrete transistors

by dburrows＠netpath.net

> >When I was a lad, we used to use a fine jet of helium and spray that >round any possible leaks. It shows up very clearly on a mass spectromter. >Some of them even had a setting on one of the controls to look for the >appropriate peak (4, I guess). > Virtually all the instruments I am involved with have a GC for sample introduction so there is helium present all the time. Do they ever think of using the tank of argon sitting off to the side? Much less know the mass of argon? (40) Do they ever think of using any of the gallons of methanol present in all the labs? or even know offhand what mass to look for. (31 there is to much 32 from the leak - O2) The heliun/argon works on the source region but on the analyzer region you have to resort to numerous other methods - there is nothing to ionize the gas. Instead you have to use solvents and look for the pressure burst when the liquid volitizes in the vac. I have had to even pressurize the system with heliun and use a gas leak detector to find some. - A bad weld on a diffusion pump is the worst to find. At hi vac. it is extremly hot when it is cold the pump oil seals the leak. What makes it even more fun is I have no diploma other than high school. I have taught numerous classes in mass spec to masters and phd's on operation, maintenance and troubleshooting. It gets really funny when they find out I have had only 1 university course - sociology. Dan

27 years, 10 months

HP85 - need info

by fauradon＠pclink.com

Ok it should be there now. Under tech info Let me know if it is useable or if I'd be better off with the original scans at 120K a piece. Francois ------------------------------------------------------------- Visit the desperately in need of update Sanctuary at: http://www.pclink.com/fauradon -----Original Message----- From: Megan <mbg(a)world.std.com> To: fauradon(a)pclink.com <fauradon(a)pclink.com> Date: Wednesday, October 21, 1998 4:59 PM Subject: Re: HP85 - need info > >>Oh and by the way I have the manual sitting on my desk right now >>(actually on top of my scanner). If you're still interested I could scan >>the 7 pages of the glossary and BASIC syntax guidelines and place it on >>my wed site tonight (I wanted to do that for several machines anyway). >>There is also 5 pages of error codes right after that (If I have time >>I'll set it up too) > >That would be great... thanks. > > Megan >

27 years, 10 months

WTB: NEEDED: Tandy/Bondwell parts!

by roblwill＠usaor.net

Wanted: LCD for a Bondwell B310 laptop. Half of the LCD in mine quit working. it is a non-backlit LCD, but I'd like to know if there is a backlit version available for this computer (this is the CGA, not the VGA version). There's the specs: SHARP LM64032 NEEDED: HD controller for a Tandy 1400HD laptop. ANY help is appreciated, as I need to rescue data from the 1400, and I'd like to get the Bondwell working. As always, ThAnX in advance, -Jason PS>> The Tandy is within the 10-yr limit. the Bondwell has about 6 months to go...

27 years, 10 months

Building a Z-80 (64bit!!!)

by CLASSICCMP＠trailing-edge.com

> I am trying to basically build a 64Bit Z-80 on a board. What I am >looking for is: Anyone know of any chips that are EXTREMELY simple >micro-controllers but, work at EXTREMELY high clock rates??? I wanna put >a few on a board with some memory and made a 64-bit Z-80. I'd like the >processor to operate at 300Mcyc (or faster) clock speeds so, I figure I >need micro-controllers that operate at about 900 Mcyc to do the work. You're pretty much looking at ECL here, I think. Some of the new gate arrays will clock at 100 MHz, but that's still nowhere need 900 MHz. Tim.

27 years, 10 months

Building a Z-80 (64bit!!!)

by allisonp＠world.std.com

< Okay, here's another hair-brained project that I am working on..... < < I am trying to basically build a 64Bit Z-80 on a board. What I am < looking for is: Anyone know of any chips that are EXTREMELY simple < micro-controllers but, work at EXTREMELY high clock rates??? I wanna p < a few on a board with some memory and made a 64-bit Z-80. I'd like th < processor to operate at 300Mcyc (or faster) clock speeds so, I figure I < need micro-controllers that operate at about 900 Mcyc to do the work. < < Any ideas???? Wait till April first for this. I don't think you were listening when we were discussing propagation delays. To deal with 300-900Mhz clock your talking 4-6layer etch and some really fast logic. The .33nS memory will be tough to buy. Be prepared to dump a few DecaKilobucks into the attempt after all you'll need a really fast logic analyser and O'scope to see what you missed. If you want a 32 bit z80 get a z380, it runs native z80 code, until you switch modes then compatability works but it has a lot of gotchas. If your doing a z80 stretch, you better think about how to access memory or really alter the z80 fetch timing. Basic Z80 timing for say 20ns memory would limit you to some 40-50Mhz... it would be a 5-10 MIPS machine though. If you superpipline it and get it down to 1-2 clocks per cycle you can double that. In any case there is no way to logically stretch a z80 without running the risk of making it software incompatable at some point. I've seriously looked at it, still have the 2901s I was thinking of using. I have z80/10mhz parts however and the 2901s would barely do that. FYI: z80S180s can be had into the 30+ mhz range. Allison

27 years, 10 months

net disruptions through terrorist machinations

by jim＠calico.litterbox.com

Gang, the tcp-ip protocol was designed to survive a nuclear war. Assuming there is ANY connectivity going around a hypothetically disrupted/destroyed major network hub, the packets should find it. Of course that link won't handle the bandwidth, but in theory the net would still *work*. -- Jim Strickland jim(a)DIESPAMMERSCUMcalico.litterbox.com ----------------------------------------------------------------------- Vote Meadocrat! Bill and Opus in 2000 - Who ELSE is there? -----------------------------------------------------------------------

27 years, 10 months

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