The secret hiding in the decimal dot of the HP-19C has been revealed.
http://www.series80.org/Misc/HP-19C
**vp
HP-19C (inside the dot)
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06-16-2005, 03:36 PM
The secret hiding in the decimal dot of the HP-19C has been revealed. http://www.series80.org/Misc/HP-19C **vp
06-16-2005, 05:07 PM
Somebody (Katie?) showed us this several years ago, too.
06-16-2005, 05:59 PM
Thanks for sharing this with us. It makes me remember of this digital graffiti I first saw some years ago in Newsweek magazine: http://www.clock.org/~fair/amusing.html The HP-19C decimal point is kind of an Easter egg rather than graffiti, I think. Does it happen on HP-29C too? Regards, Gerson.
06-17-2005, 01:04 AM
Dave Shaffer wrote: Yes it was Katie. That was before I got my HP-19C; I had asked on the list if anybody had pictures of the hp logo on the dot and Katie posted them. They were a bit fuzzy as I recall. I hope to get better pictures as I get more familiar with my camera. **vp
06-17-2005, 01:10 AM
a) as the link states, the "bill sux" on the Pentium die was a hoax, so it does not count. b) the hp logo on the dot is an attribute of the display, so its not observed on the HP-29C. I wonder though, whether you can see the HP logo on the decimal dot on the HP-10C which shares the same case design as the HP-19C.
06-17-2005, 01:54 AM
Yes, the HP-10 (not 10C) uses the same display as the 19C and has the 'hp' dot as well. Interestingly, I had (but sold) a 19C that didn't have the 'hp' dot. Apparently, they made at least two different displays for these calculators. I've only seen (up close) 2 HP-10's and 4 HP-19C's and have only come across the non-'hp' dot on one machine, so I really don't have any idea of how prevalent the non-'hp' dot displays are. I'm not sure what happened to my fuzzy 'hp' dot pictures, I do remember that it was very hard to photograph with my cheapo digital camera.
Edited: 17 June 2005, 1:55 a.m.
06-17-2005, 09:45 AM
Thank you so much! I have a few 19Cs and *never* noticed this. What a good piece of trivia. How is it Dave Hicks doesn't mention this in his write up?
06-17-2005, 09:56 AM
That HP logo is so small it's rather easy to overlook! I'm not surprised that many HP-19C owners are not aware of it. This was also mentioned in some HP Key Notes issue, IIRC, but don't ask me which one -- by another individual playing with a magnifying glass... - Thomas
06-17-2005, 12:51 PM
You are right, hoaxes shoudn't count. These 'single-atom'-matrix IBM letters are also impressive: http://www.almaden.ibm.com/vis/stm/atomo.html (Sorry to have gone off-topic) (1234 to remove)
06-17-2005, 02:11 PM
Mark Lynch wrote: Remember I was using my original HP-19C at school, my vision then was much much better [1] and since I was using that machine all the time, I had more opportunities to notice the HP logo. [1] Last year, when I received my used HP-19C I eagerly looked at the display to see the HP logo, but I couldn't see it! I had to use a magnifying glass. If I didn't know it was there I wouldn't have found it. **vp
06-18-2005, 06:15 PM
I checked both my HP10 and 19, but neither one has the "hp" logo. Ronald
06-20-2005, 11:12 AM
I definitely see it on one of my 19Cs, haven't checked the other. Someone else in this thread said there were some manufactured with, and others without. I will say this: It is *extremely* tiny (yet crisp), you will need a magnifying glass to see it for sure.
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