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J-F Garnier · (This post was last modified: 08-04-2021 06:47 PM by J-F Garnier.)

Wonderful brochure !

Interesting, we now tend to think about the Classic then the Woodstock then the Spice series (and so on) , but at the time it was usual for two (or more) families to be on sale. Here we see the HP-55 and the HP-25, that are objectively quite close, presented with distinctive features (the art of marketing...).

1975 was also about the time when I met the HP calculators and RPN for the first time, and it was a HP-35 at the INSA-Lyon (French engineering school). One unique HP-35 for a classroom, and a short course on how to use it.

J-F