test-drb November 2015

test-drb@ccmp.vtda.org

169 participants
223 discussions

youtube video of a runnning XDS Sigma mainframe with lots of nice peripherals

by jnc＠mercury.lcs.mit.edu

> From: Pierre Gebhardt > Lee and Rich, > thanks a million for sharing .. your memories about George and his > commitment regarding the preservation of these Sigma systems!!! Ditto. Noel

10 years

PILOT (was youtube video of a runnning XDS Sigma mainframe with lots of nice peripherals)

by rickb＠bensene.com

> Brad Parker wrote: > > That, and the newspaper printed versions of DDJ featuring some teaching > language (pilot?) in HP basic, caused me to pursue software with a > vengeance. > Yup, the language was indeed PILOT, which was a language focused on CAI (Computer Assisted Instruction). It was written in BASIC (a pretty large series of programs) on the HP Timeshared BASIC system. It was used quite a bit in the Chemistry and Math curriculums at the high school I went to run courseware for these classes. It annoyed us computer guys, as it meant more kids coming in to compete for the online 33ASR TTYs! Rick Bensene The Old Calculator Museum http://oldcalculatormuseum.com

10 years

youtube video of a runnning XDS Sigma mainframe with lots of nice peripherals

by p.gebhardt＠ymail.com

Hello list, spotted this video recently on youtube: https://www.youtube.com/watch?v=ZQzDSOXHd70 It's a Xerox Digital Systems mainframe! Wow, I didn't know that such installations were still running as of 1997! The computer room is quite untidy. Andybody has an idea, where with was filmed? There's also a Data General minicomputer and Honeywell mainframe equipment. Can anybody identify the Honeywell stuff? It's Level 6000 style, but it's strange to me that there seems to be just this one cabinet along the rest of the XDS equipment. Maybe a Datanet option? There are *very* nice close views on running CDC disk drives using the 100/200MB disk packs. I was looking for a long time for a video actually showing how the big head actuator of these drives moves when performing data operations! And there are nice reel tape drives which look to me like rebadged IBM drives (not sure, though). Enjoy watching it! I did! Kind regards, Pierre ------------------------------------------------------------------------------- Pierre's collection of classic computers moved to: http://www.digitalheritage.de

10 years

Front Panels - Pricing

by rodsmallwood52＠btinternet.com

Hi Guys Ok I now have the pricing for the current run of panels. Featuring all new silk screens. PDP-8/e Type A or B ?65.00 UKP + Ship to US at ?15 UK = ?80.00 = USD $121.00 PDP-8/f or /m ?70.00 UKP + Ship to US at ?15 UK = ?85.00 = USD $130.00 Payment as before to my PayPal account using my email address rodsmallwood52 at btinternet.com Regards Rod

10 years

PDP 11/03

by jws＠jwsss.com

I'm looking for a cable or cable pinout to get the console of this 11/03 going. I figure to ask the simple question here rather than dig my self a hole trying to puzzle it out or guess the solution. http://jimsoldtoys.blogspot.com/2015/11/pdp-1103-system.html It has a M7940-YA DLV11 controller. I hope to get it working and run thru some testing of the other boards I've accumulated and sell one back off to end up with a working system. I'll probably be in the market or need to try to set up a floppy drive as this appears to have a floppy controller to also have a bit more functionality. Right now ODT and some fun would be nice. thanks Jim http://jimsoldtoys.blogspot.com/2015/11/pdp-1103-system.html

10 years

Teletype services

by ball.of.john＠gmail.com

>Curious as to the setup you are attempting this with, i.e. exactly what modem are you >using? >One in the base of the 33 or some common external one? > >I'm not familiar with all the possible modem variations one might find in a 33, but >AIUI the modem for the 33 at the standard 110 bps was Bell 101 standard. > >There's not going to be a lot to talk to out there using the old parameters. >Even if someone had an auto-baud dial-in setup out there somewhere, I wouldn't >anticipate it being compatible. > >We have a 101-standard modem (in the base of a 33) around here, but have never tried it >or tried connecting it to a phone line, I'm also not familiar with it enough to know >how originate/answer issues are dealt with (whether it can do both) for such 33 to 33 >communication. Okay, this is where things get cool. For you folks who have issues with javascript heavy pages, I don't recommend clicking the following image links. The teletype is connected to one of the original 300 baud Hayes Smartmodems I had in a box doing nothing which solves a lot of problems with trying to make an older dataset work with the much more plentiful Smartmodems and their later clones by just about everyone. (which as a few have mentioned have no issue working at 110 but with a catch) That I've found so far you can dial pretty much any other hardware modem that isn't relying on a DSP or sound CODEC (so late ISA and all PCI cards don't work) and it will work by pure modulation. You just need to make sure the COM port on the machine is set for (or will automatically detect and switch to) 110 or else it assumes 300 and nothing works. The quirk I added however is that I took the guts of the teletype's UCC6 and a TWX controller and built a custom CCU that gives me feedback on the modem status and lets me control and dial from the front panel. The modem itself now hides in the stand and I don't need to type in commands to do anything. It looks as if it's a factory option. I even added a feature where in Automatic Answer mode the motor is relay controlled by the modem itself. http://i11.photobucket.com/albums/a166/ballsandy/Computer%20related/CGS_1118 .jpg http://i11.photobucket.com/albums/a166/ballsandy/Computer%20related/IMG_1390 .jpg http://i11.photobucket.com/albums/a166/ballsandy/Computer%20related/teletype /CGS_1131.jpg I have a massive writeup and a video that are about ready to go live but I need a set of videos demonstrating the setup connecting to a remote user, connecting to a remote machine and a remote user dialing into the teletype. That's where I was having my troubles. >Why don't you suggest the easiest and obvious: use a small analog PBX. >There are _plenty_ of them floating around, and most can be had for free; >you could for example even use your FritzBox Phone (a DSL WiFi Router with >analog phone ports). Then you can do internal calls from one port to any ?other port (and also use your old rotary dial phone with VoIP if you >like). People have been nagging me for the last year to get a Panasonic 308. I've yet to come across one so far that wasn't weirdly priced, plus my parents aren't interested in a PBX being installed in their house. -John

10 years

scrounging at recyclers

by marc.verdiell＠gmail.com

> Cindy Croxton wrote >This week I passed up a > large (at least 24" per side) HP server mainboard from the 70s Large HP boards from the 70's. This sounds just about perfect. This one would have fit the description of a HP 1000 mainboard pretty well. Medium sized ones too. Anything HP from the 70's or early 80's for that matter. Bring' em home! Marc

10 years

Front Panel - Update - 4-2-GO

by rodsmallwood52＠btinternet.com

Hi Guys 1 Real 8/e panel as absolute check leaves US on its way to me to-day 2. Out of twenty slots sixteen have gone. That leaves four. If they don't go before printing starts I'll have them screened to uncommitted /e (can become A or B) 3. For me its back to PDP11/40 thru 11/70 layouts. 4. Anybody need a one off. I'm trying to find an economic way to handle custom jobs 5. I'm also looking at an option to put manufacturing locations on as found on some systems (default is Maynard) Rod

10 years

Is This Optimistic?

by cctalk＠fahimi.net

Drat!? I just bought one for $10,000 last month.? Could have saved enoughfor a $5000 Lisa mouse. -- Bill No u couldn't Bill as that price is in sterling not dollars :)

10 years

Is This Optimistic?

by robert.jarratt＠ntlworld.com

I was just browsing eBay for stuff near me when I came across this: http://www.ebay.co.uk/itm/Apple-Color-Plotter-/291611803288 I don?t know anything about Apple stuff at all, but surely ?5,000 for this is a bit optimistic, isn?t it? Regards Rob

10 years

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test-drb November 2015