HP 41CV, first impressions

[hth]

(12-07-2017 10:38 PM)Didier Lachieze Wrote:  

(12-07-2017 05:11 PM)hth Wrote:  Thanks for sharing! It was new to me. Note that the top row keys are different on one of the prototypes.

Did you notice also the f key, the different sizes of the display and the HP-01?

It's great to get such insight on the HP-41C design process. There are other hidden treasures in the documents archives, such as the article on the HP calculators microcode development.

Yes, I saw the f key, forgot to mention that. I did not notice the display size or the HP-01 though.

Is the microcode article the one in the 1980 HP journal (August?), or something else?

So they made the prototype out of polystyrene, I could see the liquid cement, looked a bit like when you scratch build houses for model railways, LOL!

Håkan