Old School HP Calcs on iPhone : The Quantum Pontiff

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Dave Bacon is a theoretical ski bum who is also a pseudo professor. His research is on quantum computing, his scientific passions extend to everything in physics, mathematics, computer science and beyond, and his personal pleasures include making wine, playing poker, skiing, camping, and daydreaming (although not all of those at the same time.) Nothing he says on this blog should be construed as having anything to do with his employer or his dog.

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Old School HP Calcs on iPhone

Category: iPhone
Posted on: June 26, 2009 11:50 AM, by Dave Bacon

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Via @calbucci, classic HP calculators on the iPhone.

Very old school geeky. HP 12c, HP 12c Platinum, and HP 15c.

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Comments

I like.

Well, I like most of it. The prices HP is charging for these apps are outrageously expensive.

Posted by: Orac | June 26, 2009 1:54 PM

I got a 15C emulator from the App Store after reading about it in one of the comments on your earlier post about your Most Used iPhone Apps. The $20 price seemed absurd, but I had to have it because RPN ("reverse Polish") is my native tongue.

Posted by: John Preskill | June 26, 2009 2:31 PM

I am still using my HP21, no LCD but glimmering red lights

Posted by: H Claus | June 26, 2009 4:02 PM

There are days when I miss my trusty 41C. Now that was an awesome calculator. Unfortunately, it was done in by leaky battery goo (my own fault).

Posted by: Moopheus | June 26, 2009 4:06 PM

My old HP is in perfect condition and is = models now on ebay for about 360 bucks. I suppose I could sell the calculator and get an iphone.

Posted by: Greg Laden | June 26, 2009 4:21 PM

I sold my HP 16 programmer's calc, and am probably going to sell my HP41C since carrying more than one gadget around just does not work.

So, in the iPhone, I have:

PRG-16C, $19.99 by Thomas Fors, who also covered the 11C, 12C, AND 15C
i41CX+, $14.99 by AL Software, an amazingly complete emulation.

Neither are free, but both are well worth the money, and I have no regrets.

And on my Mac I have (Google these as typed here):

nonpareil-16C (free)
X-41 (free) by Greg Ewing

There are of course many others. All the above are based on microcode emulation of the chips used, and are running the actual ROMs from the real calculators. This is legally possible because HP did not include copyright statements in the ROMs, and they were issued before the copyright law was changed to cover that in the mid-80's. HP have been quite gracious about it, and have IIRC even contributed to the emulation projects for these older machines.

Posted by: Gray Gaffer | June 26, 2009 7:29 PM

I am holding my HP15c in my hand right now as I type this post. I even still have the soft vinyl slip-on case.

Posted by: Comrade PhysioProf | June 27, 2009 12:52 PM

I take back my comment on HP's graciousness. May have been there once, but no longer. Apparently they have ordered nonpareil to cease distributing their free versions. Although these are still avaliable elsewhere on the Web - just Google "nonpareil-16C"

Posted by: Gray Gaffer | June 28, 2009 7:04 PM

I need me some 48G action

Posted by: anon | June 29, 2009 1:22 PM

Moopheus: My HP-41C screen died about 10 years ago -- but my father's HP-45 with LED's (from the 1970's) is still going strong!!!

Posted by: Rocky Humbert | June 29, 2009 8:50 PM

wow, great idea using old calculator in iPhone..

Posted by: Rony Lee | July 2, 2009 4:50 AM