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Vintage programmable calculators

Casio FX-700P

photo of the Casio FX-700P calculator


Casio PB-700

photo of the Casio PB-700 calculator


Casio PB-1000

photo of the Casio PB-1000 calculator


Casio PB-2000C

photo of the Casio PB-2000C calculator


Casio MD-100


Casio FX-602P

photo of the calculator Casio FX-602P

This machine is no longer in my possession.


Casio FX-8000G

photo of the calculator Casio FX-8000G

The microprocessor μPD1007 is also used in the calculators FX-6000G, FX-7000G, FX-8500G.


Casio SF-9300

The microprocessor HD62076/μPD3055 is also used in the calculators FX-7700G, FX-8700G.


Casio FX-7500G

photo of the Casio FX-7500G calculator

The microprocessor HD62023/μPD1037 is also used in the financial calculator FC-1000 and in the organizers SF-4000, SF-4100, SF-7500.


Elektronika MK-90
ЭЛЕКТРОНИКА МК-90

photo of the Elektronika MK-90 calculator

This machine is no longer in my possession.


Elektronika MK-85
ЭЛЕКТРОНИКА МК-85

photo of the Elektronika MK-85 calculator

The design of this calculator is obviously based on the Casio FX-700P, but it appears to be an entirely different machine after all. It uses a 16-bit PDP-11 compatible microprocessor along with external RAM, program ROM and LCD controller. Such open architecture makes it an interesting object of hacking.


Miscellaneous


Credits

I'm very grateful to all the people who shared my interests, collaborated in the projects, helped me to learn new things, or donated various items, especially: Mahmoud Yassine, BLUE, Miyura, Jacques Laporte, Marcus von Cube, Fuse, Xerxes, Stéphane Bourguinet, Julian, Henry Arias, Malte Weyer.


Warning! Warning! All information presented herein is result of my research, and therefore may be incomplete, inaccurate, or plain wrong. Use it at your own risk!
All of the software on this site is in the public domain.

This web site is maintained by Piotr Piatek.