Casio

Casio Computer Co., Ltd. is a Japanese electronics manufacturer headquartered in Shibuya, Tokyo, whose principal products are watches, clocks, calculators, electronic dictionaries, label printers and electronic musical instruments. The business began in 1946 when Tadao Kashio set up the workshop Kashio Seisakujo in Mitaka, and Casio Computer Co., Ltd. was incorporated on 1 June 1957 after Tadao and his brothers Toshio, Kazuo and Yukio developed the relay-based 14-A calculator. The company moved from office calculators into personal calculators with the 1972 Casio Mini, entered watches with the 1974 Casiotron, introduced the Casiotone keyboard line in 1980 and released the first G-Shock, the DW-5000C, in 1983. It also developed pocket computers and graphing calculators such as the FX-700P and the fx-7000G. In the fiscal year ended 31 March 2026 it reported consolidated net sales of 276.267 billion yen.