Series of articles about HP - Printable Version +- HP Forums ( https://www.hpmuseum.org/forum)+-- Forum: Not HP Calculators ( /forum-7.html)+--- Forum: Not quite HP Calculators - but related ( /forum-8.html)+--- Thread: Series of articles about HP ( /thread-2191.html) |

Series of articles about HP - James_S - 09-26-2014 09:11 AM
Browsing through the net I came across a series of interesting articles about HP (and not only) calculators. I am sure many of you know all of it already but perhaps there are some who could benefit - enjoy! "HP CALCULATOR HISTORY - THE HP-35 Introduced on July 1 1972, this was the first handheld electronic calculator sold by HP, and the first ever to perform logarithmic and trigonometric functions with one keystroke. As opposed to later HP calculators, it has an x^y function, not y^x, and the trigonometric functions work in degrees only. The story goes that it was made after William Hewlett was shown a new scientific desktop calculator by his engineers, and asked for a version to fit in his shirt-pocket. At first, HP thought they would only make a few HP-35s for their own engineers, as no-one else would be interested. Then they decided to try selling it - and sold hundreds of thousands. This means that the HP-35 is not particularly rare, but collectors will pay a good price for one because the HP-35 was the first HP handheld. We celebrated its twentieth anniversary last year, and articles about it were published in the proceedings of our 1992 conference and in DATAFILE V12N2. The latter article includes details of the three different types of HP-35 made." Read more: http://www.hpcc.org/calculators/wmjarts.html http://articles.latimes.com/2013/aug/28/business/la-fi-mo-old-hp-calculators-20130826 http://www.scienceclarified.com/Bi-Ca/Calculator.html RE: Series of articles about HP - Jake Schwartz - 09-26-2014 05:29 PM
Hi, FWIW, I think it had already been established long ago that the actual introduction date of the HP35 was closer to February 1st of 1972, rather than July. Just sayin'... Thanks, Jake |