test-drb February 2000

test-drb@ccmp.vtda.org

162 participants
585 discussions

[ClassicCMP] PDP8/S, then GRI99, and later a British machine??

by kevinm＠xpuppy.freeserve.co.uk

Many years ago I worked on a minicomputer range manufactured in the UK. The series was the Molecular 18 sold by BCL Ltd. Having an interest in this machine, and in PDP8 machines, I have been looking for links between the two. (The two machines have quite a few similarities) In an interview, Saul Dinman (who designed the PDP8/S) talks about a later design called the GRI-909. Saul had left DEC at this stage. The company that manufactured the early Molecular 18 machines in the UK was Allied Business Computers, who also produced a machine called the GRI-99. This all may be coincidence and fanciful, but does any one have any information of the GRI range of machines? Kevin Murrell UK

24 years, 4 months

Info needed: Eagle AVL S-100 computer

by Innfogra＠aol.com

Joe; I would ignore the AVL. Does anyone know if Eagle made a S100 computer? My bet is the computer is a generic S100 used to run multiple serial ports. However they could be custom controllers. AVL makes slide projector controllers for large slide shows. This sounds like a very early controller. What are the outputs on the AV cards? Could they conceivably drive Kodak Ektamatic or Carousel slide projectors? Slide projectors use 2, 5 or 7 wire/pin connectors. Some AVLs will control up to 12 slide projectors, usually in multiple of 3s (i.e., 3, 6, 9 or 12 projectors). Two of the wires control the power up and down on the light bulbs. If they did this directly there would have to be some serious power dissipation. AVL was an early adopter of computers. If I remember right Eagle made S100 computers before their crossover clones. This is my guess. Paxton

24 years, 4 months

[ClassicCMP] DIGEST USERS/WANNABES PLEASE READ

by west＠tseinc.com

The digests appear to be working, but likely need some "tuning". It appears the digests are being sent only when a certain number of messages have stacked up. I would like to change it so that the digest is sent out at a certain time each day, once a day, regardless of the number of messages waiting in the digest. Does anyone have any ideas regarding how it should be timed? Also, quite a few people have emailed me asking what happened to the digests. Apparently the old software handled the digests as part of the main list. With majordomo, digests are actually a totally separate list. If you want digests instead of regular traffic, unsubscribe to the classiccmp list and then subscribe to classiccmp-digest which is the name of the digest list. Send to majordomo(a)classiccmp.org with a key of 'unsubscribe classiccmp' Then send another message to majordomo(a)classiccmp.org with a key of 'subscribe classiccmp-digest' Of course, there's no reason you can't subscribe to both :) Pleast let me know if there's any problems. Regards, Jay West

24 years, 4 months

What's a WD2793A chip?

by edick＠idcomm.com

There may well have been one of these. I've got a one or two of the ones a Denver company made for the Xerox 820 to insert a 1791/95 in place of the 1771. I even have the writeup somewhere, but no software patches. It just seems that I never have both the mezzanine board and the doc at the same time. Dick -----Original Message----- From: No Name <lsommo(a)hotmail.com> To: classiccmp(a)classiccmp.org <classiccmp(a)classiccmp.org> Date: Saturday, February 05, 2000 8:49 AM Subject: Re: What's a WD2793A chip? Wasn't there an add-on developed for the Xerox 820/ Big Board that used the 2793? As I recall it was a a simpler (and less expensive) circuit as compared to the other add-on being offered at the time. I had one and lost it (as well as my 256K memory expansion board) during the course of my moves. If anyone has the schematics for it I'd like to try and put another one together. Lou

24 years, 4 months

ClassicCMP test subject prefix IGNORE

by west＠tseinc.com

test subject prefix

24 years, 4 months

Digital Prometrix Omnimap 111, DEC???

by mbg＠world.std.com

>It is the LSI-11 built into a VT100 thingy (a PDT-11?) The cards are from >left to right: LSI=11/03 processor, RQDXn disk controller, Memory (looks >like an M8044), serial port, and RX01 floppy controller. A cute system >and well worth the dollar that is currently bid :-) --Chuck Sounds more like a VT103 case... definitely worth it... 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 | +--------------------------------+-------------------------------------+

24 years, 4 months

HTML in Email

by allisonp＠world.std.com

> method Allison is using now. <ducking and running> Well... the telnet link makes me think the SR on a pretty 11/70 as faster way to do it. The local at home stuff is rather odd but actually very efficient as it's edit/compose/reply is all done off line then you deliver (also fetches then). It has many things going for it, one it leaves nothing on the ISP, the connect time is minimal, all headers are visible, being slightly brain dead all worms/viri/trojans _can_ be sent through it safely and files TEXT or UUE greater than 50k are saved to disk and the first 1024 chars displayed. the interface is windows/3.1 so it isn't that bad. <> Sheesh. Plain text really sucks. Y'all prefer that someone type _like thi <> to indicate a piece of underlined text? or my habit *bolding* with <> asterisks? This message "encoded" with HTML is roughly 5% larger than it <> in plain text. Wow, now that's a waste of resources. < < I responded in kind (and also in Postscript, morse code, and uuencoded <DVI). ;) You forgot runoff and latex. Yes, html isn't that much larger but, then so is runoff(same thing really). I can read text from the Epson PX8 laptop... HTML is much to fractured looking for a 80x8 screen. Allison PS: orginal message as I initially see it in the view pane. the first 36 lines are just the header so those that never see it may have a clue. ----------------------------------------------------------------------------

24 years, 4 months

Digital Prometrix Omnimap 111, DEC???

by allisonp＠world.std.com

<It is the LSI-11 built into a VT100 thingy (a PDT-11?) The cards are from <left to right: <LSI=11/03 processor, RQDXn disk controller, Memory (looks like an M8044), <serial port, and RX01 floppy controller. A cute system and well worth the <dollar that is currently bid :-) <--Chuck PDT-11 was a boardset without Qbus. More correctly it's a varient of a VT103, Vt100 with a Qbus backplane. CPU can be LSI-11 or 11/23 series. DISK and IO options can vary. Allison

24 years, 4 months

PDP-11 sighting - "Sliders" pilot

by ethan_dicks＠yahoo.com

Hi, all, I happened to be watching the Sci Fi Channel tonight and caught the re- broadcast of the first "Sliders" episode. Quinn has a PDP-11 in his basement in San Francisco. It's blurry most of the time, but when he opens a worm hole for Wade and Prof. Arturo, the distortion effect brings the rack into visible clarity - it appears to be an RX01 or RX02 at the top of the rack, over a BA-11N box, CPU unknown. I'm not sure, but underneath the BA-11N, the narrow black vertical panels appear similar to the filler plates on a MINC-11 system, but that part of the rack wasn't shown as clearly. -ethan ===== Infinet has been sold. The domain is going away in February. Please send all replies to erd(a)iname.com __________________________________________________ Do You Yahoo!? Talk to your friends online with Yahoo! Messenger. http://im.yahoo.com

24 years, 4 months

FW: SURPLUS MINI COMPUTER (Perkin Elmer)

by mcquiggi＠sfu.ca

Hi Gang: The new list seems to be working fine. Here's a message from a friend in the City of Vancouver. If you're interested, please contact Jim directly. There's a URL with more details. Kevin >Return-Path: <jim_lloyd(a)city.vancouver.bc.ca> >From: Jim Lloyd <jim_lloyd(a)city.vancouver.bc.ca> >To: "McQuiggin, Kevin" <kevin_mcquiggin(a)city.vancouver.bc.ca> >Subject: SURPLUS MINI COMPUTER >Date: Mon, 31 Jan 2000 09:47:09 -0800 > >Kevin, you had mentioned that you may have some intersted parties in the >attached machine. Here are some of the details. It is advertised on our web >site at www.city.vancouver.bc.ca/bid/SPS_00010.htm > >Thanks > > >"The City of Vancouver (Canada) has a Perkin Elmer mini computer for sale >that will be available for removal in approximately June 2000. This computer >will be in service until that date and has been used for operation of the >City+s Traffic Signal Management System. > > >Details: >Model 3210 CPU >2MB RAM >Model CDC50 - 50MB disc subsystem (two discs - one fixed, one removable) >Model 1175A tape subsystem (two drives - one 800 bpi, one 1600 bpi) 75inches >per second >75 CCU Winkomatic Modems with possible spares >10 Multiplexer cards (for modems) >Software not included" ========================================================== Sgt. Kevin McQuiggin, Vancouver Police Department E-Comm Project (604) 215-5095; Cell: (604) 868-0544 Email: mcquiggi(a)sfu.ca

24 years, 4 months

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test-drb February 2000