Presenting your collection of non HP calculators, is anyone interested of that?

[Didier Lachieze]

The very first CMOS calculator and first Sharp calculator using LEDs, the Sharp EL-801 or ELSI MINI from 1972 and it's sister made by Sharp for Dixons in the UK, the Prinztronic Micro:



The Prinztronic Micro is not just a rebadged EL-801, it shares a similar design but with a different (and probably cheaper) case: plastic vs. metal for the 801 and battery door on the back vs. a sliding battery case for the 801:



Some pictures from the inside (left the Sharp EL-801, right the Prinztronic Micro):

The display board is stacked on top of the CPU board which plugs onto the keyboard: