Casio was established in 1946 by Tadao Kashio, a Japanese engineer and in 1957 the Casio Computer Co Ltd, as it is now called was formed. Known mainly for manufacturing calculators, watches and other small electronic devices, it came a surprise to the music industry when in 1980 Casio introduced their first electronic keyboard the CT-201.
In 1986 they launched their first digital piano the CPS-201 followed by several other models including the AP7 in 1991. This was the first Celviano model, a name which has been adopted for all Casio traditional style digital pianos. In 2003 the first Privia model, the PX-100 was introduced with huge success, and since then Casio has become one of the major manufacturers in the lower priced digital piano market.
Casio currently produce 2 ranges of digital pianos, the Privia PX series and Celviano AP models along with a great line of arranger keyboards and now synthsesizer products.