One of my all time favorite calculators is the HP 16C . It is an RPN calculator aimed at computer programmers with support for hex, binary, octal and decimal and all sorts of useful operations like bit shifting, masking and rotations. I don't own one myself, I have a Swiss Micro's DM16L , a high quality modern day remake with improvements like a 2 line display. There is a limited run collectors edition of the HP 16C coming soon though. But none of those calculators run Linux.

This one can:

xcalc on an actual calculator

Screenshot of the console and partial fbv image viewer

Of course it runs Doom

My all time favorite, the HP-16C

Below are at least a thousand words covering the HP Prime G2 and other graphical calculators capable of running Linux. You can skip that if you just want to read about my updated Linux port for the Prime G2.

HP Prime G2

The HP Prime is a graphing calculator on the market since 2013, with a hardware revision in 2018 (the G2 model).…