Old Datamath quirk: anyone remember?



#4

First, thanks to all for the HHC videos, an eye-opener for sure. The TI talk reminded me (painfully) of once having a Datamath red-LED calculator, with a peculiar quirk: sometimes, when turning it on, the display would start counting up from the rightmost place, at blistering speed. No decimal point or leading zeroes, just counting up at about the rate of 500 per second, as a very rough estimate. Any explanation of this, or personal experience? Again, ouch, that unit is part of some landfill somewhere. TIA, Glenn


#5

Hello!

Quote:
Any explanation of this, or personal experience?

Explanation? No. Personal experience? Yes. Because it works in more or less the same way with most Ti calculators! My Ti-59 still does that trick today.

Regards,
max


#6

Thanks, I appreciate that validation. I had another TI red LED machine, also in the landfill (keeping my HP35 company). But all that reminiscing at the conference led me to see, on the Datamath site, the name "Monsanto." It said they developed the LEDs for TI (and HP also?) as well as Agent Orange. Does anyone also remember that they sponsored the Disneyland attraction "Adventure Through Inner Space?"
Interesting connections. Regards, Glenn


#7

I'm pretty sure HP made their own LEDs. For years, HP was one of the bigger suppliers of LED displays. This business got handed off to Agilent, who later spun it off into another company called Avago, IIRC.

#8

Quote:
Does anyone also remember that they sponsored the Disneyland attraction "Adventure Through Inner Space?"
Interesting connections. Regards, Glenn

Wow that's an old memory! I went on that ride as a young squirt probably back in '70 or so. Its one of the few rides I recall well.

Miracles from Molecules!

Found a very good CGI re-creation of the ride on YouTube. Don't know how they did it.

CGI Ride

#9

Quote:
Does anyone also remember that they sponsored the Disneyland attraction "Adventure Through Inner Space?"

At Disney World , it was the Monsanto Circle Vision Theater (later different corporate sponsors for that attraction).
#10

I used a TI 59 for the last two years I was in college. I never saw (or, before now, heard of) this quirk...


Possibly Related Threads...
Thread Author Replies Views Last Post
  Slightly OT: Remember the extraction of the HP-35 ROM? Frank Boehm (Germany) 1 297 02-06-2013, 05:53 PM
Last Post: aurelio
  HP-33S Display Quirk Matt Agajanian 4 376 05-15-2012, 08:31 AM
Last Post: Michael de Estrada
  Is this right? 33s ALG mode quirk Matt Agajanian 6 468 03-16-2012, 12:45 PM
Last Post: bill platt
  OT: "The Big Bang Theory" actress visits the Datamath Calculator Museum Joerg Woerner 8 611 03-07-2012, 03:15 AM
Last Post: Johnny Bjoern Rasmussen
  Best friends! (DataMath) robertoataulfo 1 216 10-11-2011, 09:33 PM
Last Post: Joerg Woerner
  34s work-around for 41c quirk Gene Wright 6 497 08-12-2011, 07:07 PM
Last Post: Paul Dale
  HP97 box restore project (you may remember) Alberto Fenini 5 425 04-09-2010, 03:38 PM
Last Post: Alberto Fenini
  Hawkeye Bendix: Remember this one ? (2/?) [Long + pictures, Sorry] Etienne Victoria 4 373 03-22-2010, 10:20 PM
Last Post: tim m.
  Hawkeye: Remember this one? (1/?) Etienne Victoria 1 252 07-19-2009, 01:22 PM
Last Post: Katie Wasserman
  HP35s Program Memory Quirk Thomas Chrapkiewicz 45 2,479 05-18-2009, 07:55 AM
Last Post: Bart (UK)

Forum Jump: