casio FX-702P

Another calculator from casio, with a BASIC interpreter allowing to develop your own programs, this model has the unusual feature of not using a QWERTY keyboard, and keys are aligned following their alphabetic order in a 7x4 rows

Casio FX-850

This is an small calculator, with a BASIC interpreter and RAM memory (32/64k), it was made by the well known Japanish Calculator firm CASIO. A relative that was working in Canary Island, when the electronic products were still cheaper than in Spain bought one it for me in 1988, but unfortunelly the calculator fell from a second floor in 1992, and the display was broken.


The calculator has also a memory bank with more than 100 different mathematical functions and programs.

This model was buy in ebay in March 2007, in Thailand, good shipping from there , and was partially functional, I'm still looking for one of the memories to be able to access to the memory.