test-drb April 2001

test-drb@ccmp.vtda.org

251 participants
669 discussions

by mcguire＠neurotica.com

U of M as in Maryland? I'm in Laurel. :-) So far I've found endless fascination in chips and power transistors. But, the most unbelievably fascinating thing that I've seen in that scope was something I thought would be boring...a blown tungsten lamp filament! I just did some quick scans of some of the electromicrographs I've done lately. They can be seen at http://www.neurotica.com/sem/images if you're interested. The blown tungsten lamp filament pics are filament-1.jpg and filament-2.jpg. -Dave McGuire On April 13, Jason McBrien wrote: > That's SUPER Impressive. What do you take pictures of? I'm always hoping to > find one of those at U of M property depot, but the closest I've seen is a > fetal ultrasound machine :) > > ----- Original Message ----- > From: "Dave McGuire" <mcguire(a)neurotica.com> > To: <classiccmp(a)classiccmp.org> > Sent: Friday, April 13, 2001 2:39 PM > Subject: Re: My Collection > > > > > > I got motivated and took a few pics of it just a few minutes ago. > > They can be seen at http://www.neurotica.com/sem if you're interested. > > SEMs are some of the coolest devices ever put together, in my opinion. > > > > -Dave McGuire > > > > On April 13, Tony Eros wrote: > > > You've got an electron microscope? Cool! How small do those things > get? > > > > > > -- Tony > > > > > > At 11:51 AM 4/13/2001 -0400, you wrote: > > > >On April 13, Jerome Fine wrote: > > > > > Does anyone on the list run RT-11 still other than Megan Gentry? > > > > > Do you tinker with the operating system code at all? Does anyone > > > > > care about the RT-11 Operating System? > > > > > > > > I care about it; I like it quite a bit. I have a Micro 11/73 > > > >running v5.4, and a Kevex X-ray analyzer (an accessory to the electron > > > >microscope) that has a pdp11/73 in it that runs RT-11. > > > > > > > > > > > > -Dave McGuire > >

23 years, 9 months

DECmate II stuff

by ajp166＠bellatlantic.net

From: Jeff Hellige <jhellige(a)earthlink.net> > Yes, I have CP/M and the full WPS. It's OS/278 I'm looking >for, though I had thought there were one or two others that ran on >the DECmate II as well. I could be wrong there though. OS/278 is on uu.se archive if memory works. thats the only other I know of other than PS/8 which is the realtime version of OS/8 and that would take work to run on DECmate. There may be others, I can't be certain. On the other hand writing an OS for PDP-8 would be interesting as the reatime monitor and such are all around as source. Allison

23 years, 9 months

My Collection

by mcguire＠neurotica.com

On April 13, Jerome Fine wrote: > > I care about it; I like it quite a bit. I have a Micro 11/73 > > running v5.4, and a Kevex X-ray analyzer (an accessory to the electron > > microscope) that has a pdp11/73 in it that runs RT-11. > > Jerome Fine replies: > > I sounds like this is now strictly for hobby use. Not exactly. I've several monetary offers in-hand for analyses for when I finish getting it connected to the microscope. As far as I can tell Kevex shipped analyzers in this configuration until just a couple of years ago. Now their newer products are based around a Windows PeeCee that takes over twice as long to run a spectral analysis on a sample as their previous [J11 and embedded Z8000] design did. > Do you have any non-DEC > boards? What is the interface between the PDP-11 and the microscope? I have tons of them. I assume you mean in the Kevex analyzer. ;) The analyzer consists of a KDJ11 board, a third-party disk controller board, a graphics board, and a bunch of parallel I/O ports. It connects to a custom backplane containing an embedded Z8000 data cruncher, which in turn connects to a NIM bin which contains the analog front-end and detector interface and the A/D converter stuff. The detector attaches to the rear of the microscope chamber in an accessory port. > How does RT-11 perform? Are there any enhancements that you could use > at this point? It performs wonderfully. The only thing I'd like better is if it [the control software] were networkable, but since most of it talks directly to the graphics board in the qbus backplane, I doubt that'd be a likely hack candidate. The unit isn't old enough to be able to get the source out of Kevex for hobbyist use, since it's still a supported model. -Dave McGuire

23 years, 9 months

Chips and SBCs(Re: Technico (Re: TI Minicomputer?)

by pete＠dunnington.u-net.com

On Apr 14, 14:25, Dave McGuire wrote: > On April 13, Eric Chomko wrote: > > Interesting regarding chips and SBCs. Who collects them, other than > >Allison? > > I collect SBCs, eval boards, and trainers. I find that, if > operable, they're a wonderful way to learn the architecture of a given > microprocessor, and an excellent way to compare architectural features > and shortcomings. Thanks for reminding me -- I have a 2901 trainer developed by the staff at York University, which was used for Micro Architecture Design courses until a few years ago. -- Pete Peter Turnbull Network Manager Dept. of Computer Science University of York

23 years, 9 months

Collection list (just for phun) and wants

by pete＠dunnington.u-net.com

On Apr 14, 11:36, Don Maslin wrote: > On Sat, 14 Apr 2001, Pete Turnbull wrote: > > I didn't know about a proprietary OS, I've > > only seen p-System on them, but I think you could get CP/M-68K. I met > > someone who claimed to have CP/M-68K for a Sage but when pressed, he > > couldn't find the Sage version. > > I have it as a 3 DSQD disk set in TeleDisk image form. Hmm... the Sage is in the "heap on the shelves that need sorted" at the moment, and I haven't time to do the sorting. But I'll file that reference for the future :-) Thanks, Don! -- Pete Peter Turnbull Network Manager Dept. of Computer Science University of York

23 years, 9 months

DECmate II stuff

by ajp166＠bellatlantic.net

At last memory there was the OS/278 (OS/8 for decmates) on I think it was uu.se. There was cp/m-80 for it and of course WPS which if you had all the optional software for it included a list processor, spreadsheet, and I forget the other applications. Allison -----Original Message----- From: Jeff Hellige <jhellige(a)earthlink.net> To: classiccmp(a)classiccmp.org <classiccmp(a)classiccmp.org> Date: Saturday, April 14, 2001 1:36 PM Subject: DECmate II stuff > Since we have so many DEC enthusiasts on this list, I was >wondering if anyone had any of the OS's for the DECmate II on RX50 >disks? I have WPS and the APU board with CP/M but would like to get >some of the other OS variants for the machine. Other than the APU >option, it also has both the hard disk and color graphics option >boards. Was there ever much of anything that took advantage of the >color graphics board? > > Thanks > Jeff >-- > Collector of Classic Microcomputers and Video Game Systems: > Home of the TRS-80 Model 2000 FAQ File > http://www.geocities.com/siliconvalley/lakes/6757 >

23 years, 9 months

My Collection

by mcguire＠neurotica.com

Very impressive level of completeness, here. Bravo! -Dave On April 12, Musicman38 wrote: > Here's a partial list of my collection. > I have many more just not cataloged yet.. > My Favorite is the Original Commodore Pet 8K, > and Original Osborne 01 Tan case.. > All my computers are working with the exception of 2 or 3.. > Phil... > > Apple 2C Mint Monitor, Prtr,Manuals > Apple 2GS Mint Prtr,Monitor,Drive > Apple II Mint Assorted cards > Apple IIe Mint 80 col card > Apple IIe Mint DuoDisk,SCSI,Manuals > Apple Iie Platinum good Asst Cards > Apple II-plus dead Assorted Cards > Atari XE Mint Kybrd, lots games > Atari 400 Mint Many Extras + Carts > Columbia XT Portable Mint 10 Meg Hard Drive > Columbia XT Portable Dead Dual Floppy drives > Columbia XT Portable Good Dual Floppy > Columbia XT Portable Good 20 Mag HD > Corona Portable XT VGood Dual Floppy > Commodore 128 Mint Mint, Floppy, Printer > Commodore 128 Good Missing 2 keys works > Commodore 128 Ukwn Not Tested > Commodore 16 Mint Box,Cassette,Manuals > Commodore 16 Mint Box, Manuals > Commodore 64 mint Box,Manuals > Commodore 64 Mint Box,Manuals > Commodore 64SX Exec Mint Runs great > Commodore 64SX Dead Very Clean > Commodore 8032 vgood 32K Ram > Commodore Amiga 500 Mint Stock > Commodore C128D Mint W/Kybd > Commodore C128D Dead W/Kybd > Commodore Pet Good > Commodore Plus/4 Mint Box, Manuals > Commodore Plus/4 Vgood Box, Manuals > Commodore Plus/4 Mint In Box w/Manual > Commodore Vic-20 M1 Mint Box, Manuals > Commodore Vic-20 M2 Mint Box, Manuals > Compaq Portable XT mint Dual Floppy > Compaq Portable XT Mint Dual Floppy > Compaq Portable XT Good 10 MB Hard Drive > Compaq Portable XT Plus Dead 10 MB Hard Drive > Compaq Portable II 286 Mint 20 MB Hard Drive > Compaq Portable II 286 Mint 20 MB HD & Modem > Franklin Ace 1200 Mint Dual Drive, Manuals > IBM PC-Junior Mint Monitor, Expanded > IBM PC-Junior Mint Monitor > IBM PC-Junior Ukwn > IBM PC-Junior Ukwn > IBM Portable XT 5155 VGood Hard Drive, Floppy > IBM PC-XT VGood Dual Floppy,10MB HD > IBM PC-XT Mint Color,HD,20MB > Kaypro 1 Vgood Works Perfectly > Kaypro 1 Vgood Manuals Software > Kaypro 10 Good Bad Hard Drive > Kaypro 10 Vgood Works Fine > Kaypro 10 Mint Perfect all Books/Sftwre > Kaypro 16 Vgood Work Fine > Kaypro 16-F Mint Dual Floppy - Rare > Kaypro 2 Vgood Manuals, SOftware > Kaypro 2X Good Mint CP/M & Manuals > Kaypro 4-84 Mint Carrying Case > Kaypro II Mint Manuals, Carry Case > Kaypro II Good Works OK > Laser 128 Vgood Manual > Mattel Aquarius Mint Manuals, Cassette > Mattel Aquarius Good Manuals > Mattel Aquarius Mint Boxed w/All Periferals > Osborne 01-A Mint White Screen > Osborne 01-A Mint Green screen > Osborne 01-A Dead Tech Manuals > Osborne 01 Vgood Complete w/Manuals > Osborne Executive Mint Manuals, Software > Osborne Executive Poor Manuals, Software > Radio Shack CoCo 1 Good 4K,Gray,Chicklet keys > Radio Shack CoCo 1 Mint 16K, Manuals > Radio Shack CoCo 1 Good 16K Ram > Radio Shack CoCo 2 Mint 32K Ram, manuals > Radio Shack CoCo 2 Good 32K Ram > Radio Shack CoCo 2 Mint 64K Ram, Newer Kybd > Radio Shack CoCo 3 Mint 64K RAM > Radio Shack MC-10 Mint Box, Manuals,PS > Radio Shack MC-10 Mint PS > Radio Shack Model 1 Dead > Radio Shack Model 1 Mint Level II Basic 16K RAM > Radio Shack Model 100 Vgood Manual > Radio Shack Model 102 Vgood > Radio Shack Model 4 Good > Radio Shack Model 4P Mint Manuals, Software > Radio Shack Model 4P Good > Tandy 1200FD Vgood > Texas Instruments 99/4A Mint Silver/Blk > Texas Instruments 99/4A Mint Beige/Tan > Texas Instruments 99/4A Mint Mint in Box, Manual > Texas Instruments TI99 Mint Silver/Blk > Texas Instruments TI99 Mint Box,Manuals Beige > Texas Instruments TI99/4A Good Beige/Tan > TI-Expansion good Expansion Box Loaded > TI-Expansion & Manuals Mint Manuals, Everything Loaded > Timex 1000 poor Works > Zenith Z170 Mint Manual, Very Clean > Mac SE/30 Mint Clean, HD, SCSI > Mac Plus Vgood Clean > Mac Plus Vgood Clean > Mac II LC Vgood Kybds > Mac SE Vgood Clean > Mac Laptop Bad Clean > Mac 512 Vgood Clean > Mac Classic II Mint Clean, SCSI HD >

23 years, 9 months

Collection list (just for phun) and wants

by pete＠dunnington.u-net.com

On Apr 10, 19:13, THETechnoid(a)home.com wrote: > I'd like to see some of your lists. I may as well join in. Not all of my collection is accessible, some of it is on the "fix, one day" list, and it's in no particular order, but here goes: BBC Microcomputer Model B (1 working, 1 not quite, parts for 1-2 more) BBC Microcomputer Model B Plus x 3/4 (needs serious work) Torch Z80 Card x 2 Acorn 6502 2nd Processor Acorn Z80 2nd Processor Acorn Electron Acorn Atom Archimedes 310 Archimedes 440 Acorn R260 Acorn R260 with non-Acorn SCSI (so basically an A540) Apple ][+ Apple //e Apple Mac Plus x 2 (one has a hard drive) Apple Mac IIvx Sharp MZ80K Atari MegaST Exidy Sorcerer Dragon 32 Nascom 2 Commodore PET 2001-8K Commodore 128 (US version) Commodore VIC-20 Amiga 500 (incomplete) homebrew Z8 SBC Sinclair ZX81 Sinclair Spectrum Sinclair Spectrum + Sinclair QL x 2 Sparcstation 1+ Sparc Classic SGI Indigo R3000, "song and dance machine" graphics SGI Indigo R3000, XZ graphics SGI Indigo R3000, Elan graphics Silicon Graphics Indy R4600SC Silicon Graphics Indy R4600SC NeXTstation XT-compatible AT-compatible 386SX-16 486DX-66 486DX4-100 PDP-11/03 x 2 } PDP-11/23 x 2 } but only 2 x BA11 to run them in PDP-11/73 x 2 } PDP-11/34 PDP-11/24 (boards only, no backplane/panel/box) microPDP-11/83 microVax I Vaxstation 3100 WP78 (PDP-8) Sage II Cambridge Z88 Psion Organiser Microwriter AgendA At any given time, between 12 and 18 of these are on the network, which is mostly 10baseT with some 10base2 and 10base5, and to which I'm about to add some FDDI. Also on the net are: HP 1600CM network printer Star laserprinter GatorBox CS a couple of printer server boxes three managed hubs assorted other network devices and lurking in odd places: too many monitors uncertain number of printers probably half a dozen assorted terminals far too many assorted PCBs uncounted keyboards of odd types uncountable disk drives various Zilog boards looking for a backplane 260 drawers of components What I'm lookng for: 1) anything free :-) 2) 1/4 of the Origin 2000 from work ;-) 3) more space 4) more time 5) bottom half of a case for an Acorn Atom 6) fibre optic cables 7) QBus SCSI disk controller 8) TU56 -- Pete Peter Turnbull Network Manager Dept. of Computer Science University of York

23 years, 9 months

50 pin SCSI to 50 pin centronics

by ajp166＠bellatlantic.net

From: Tony Duell <ard(a)p850ug1.demon.co.uk> >> >> I've revisited the RS232 signal definitions and can't see one called "busy". I > >Seriously, I guess such printers probably shouldn't be called 'RS232' >because they most definitely use some of the hardware handshake lines in >ways that the standard forbids. On the other hand, just about all 'RS232' >devices do that now. There are RS232 lines to arbitrate TX/RX data flow. Though the better Serial interfaced printers not only allowed for this they also used Xon/Xoff serial protocal for buffer management. >I have just picked up the user manual for the DEC Letterprinter 210 >(basically an LA100 in a different box!). There is a table (page 25 in my >edition) that is headed : I have one and it's one very nice printer still. It's used is mostly on the DEC and CP/M systems that didn't support parallel IO or as a connector convenience on my part. All of those systems the driver supports the Xon/Xoff flow control as it was very easy to do. > >'The printer supports the folloing RS232C interface signals > >Pin Source Name Function > >[...] > >11 Printer BUSY Restraint > >[...] ' > >Now, I happen to know that is not part of the official RS232 spec, but it >certainly seems to be a de-facto standard... It is but look at the EIA line there and its name and function. Different name is the problem. It was used for HALFduplex modems to arbitrate flow. The DEC parlance prefered the three wire signaling with signal common and TXD and RXD using xon/xoff flow control. If the connection was used with wider signals then DTR/CTS were added to signal mostly that something was connected. Allison

23 years, 9 months

My Collection

by mcguire＠neurotica.com

On April 14, John Foust wrote: > At 12:06 PM 4/14/01 -0500, you wrote: > >You and I both Sellam - this is like looking at stuff when we were in grade > >school - like the fly that looked like a monster. Is this machine one the > >large heavy ones I've seen in older books or have they brought the > >electromicrograph machines to a reasonable size? I'd hate to even ask what > >one surplus would set a person back. > > They'll be as easy to get as a PDP, I suspect. From reading the > microscopy mailing list I mentioned a few messages ago, when these > electron microscopes get to be 10-25 years old, people tend > to give them away for the hauling. I wouldn't say that's a universal thing. I personally know of about 30-40 perfectly functional, daily-use SEM installations, NONE of which are less than 20 years old. -Dave McGuire

23 years, 9 months

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test-drb April 2001