Casio FX-603P

Casio FX-603P

The FX-603P was a programmable calculator, manufactured by CASIO from 1990. It was the successor model to the Casio FX-602P. Since it was only released in a limited number of countries in small quantities, it is now an excessively rare item which commands high prices when sold.

Read more about Casio FX-603P:  Display, Programming, Interface