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NP...

A HP calculator emulator (19/25/29/33/34/41/65/67/97...) was developed by Eric Smith between 1995 and 2011.

Then from 2018 articles on hackaday and videos on youtube present two calculators produced by Chris Chung: a NP-41 and a NP-25.

But since then... no news... neither from the emulator nor from the calculators !

I use the emulator and I ended up finding an NP-25 but the NP-41 remains nowhere to be found...


NONPAREIL simulator (Eric Smith)

   Nonpareil Simulator...

   Nonpareil for Windows...

   Nonpareil Photos...


NP-25 and NP-41 (Chris Chung)

   NP-25C Calculator...

   NP-41 RPN Calculator...

   NP-41 Calculator Build...


and also some videos on :

  • Concerning the NP-25...

       NP-25 Microcode...

       NP-25 Features...


  • but also the NP-41...

       NP-41 proof...

       NP-41 Unit #1...

       NP-41 Slim Prototype...

       NP-41 ESD Testing...




  • zoom



    NP-25  zoom

    NP-41  zoom


















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      Last update on 15 August 2024

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