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Still Have My Faithful HP-15C

Posted by Candy Humphries on 14 July 2007, 6:05 p.m.

I just happen to stumble across this museum website of HP Calculators, while searching for RPN software for my Palm. I'm glad to see that there are others who are still fans and/or who have fond memories of owning one! It's kind of funny, because my HP-15C is still sitting right in front of me at my workstation, after 21+ years of heavy usage. Unfortunately, my plate label “15C” has fallen off. I remember owning TI calculators back in the early 80’s, when I was a math/engineering student at Purdue. I still remember throwing one of them across my dorm room out of frustration, because the keys kept sticking (they have come a long way since then). That Christmas, my parents gave me a HP-15C, which was fairly new on the market. It came in very handy, especially when one of my EE professors in ’86-’87 required our calculators to be capable of complex number calculations (added feature from its predecessors). Of all the past Christmas gifts received, I have cherished this one most of all. To this day, I'm still hooked on the RPN technology, unless a subject requires more features, such as tabular calculations for statistics. Over the years, I have acquired a small collection of HP's RPN calculators as an engineer, especially since they are not easy to come by. From one of my past engineering jobs, I acquired an older, portable, HP RPN scientific calculator that someone was giving away, with red led lights, and an electrical plug. I didn't realize some of them are still holding their value! Maybe I should keep the one at work, safe at home, or use my newer 32S model (still old) so it doesn’t magically disappear one day? Does this make me a geek?


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