CASIO was founded in 1946 in Tokyo, Japan, by Kashio Tadao. It started its journey by making calculators and gradually ventured into other areas like wristwatches, electronic dictionary, digital diaries, digital cameras, televisions, mobile phones, musical instruments, and various other electronics products. It's probably best known for its calculators, cash registers, and wristwatches.....Read more on tolmol.com
http://www.tolmol.com/bp/wristwatches/casio-watches.htm
