Casio (1s, 10s, 100s, etc ... ) had nine keys. Another distinguishing innovation was the use of a single display window instead of the three display windows (one for each argument and one for the answer) used in other calculators. Casio Computer Co., Ltd. was formed in June 1957. That year, Casio released the Model 14-A, sold for 485,000 yen, the world's first all-electric compact calculator, which was based on relay technology. In the 1980s, its budget electronic instruments and its line of affordable home electronic musical keyboard instruments became popular. The company also became well known for the wide variety
SABA (electronics manufacturer) manufacturing of headphones, radio parts, and a variety of products from radio components to receivers. In 1931, SABA produced more than 100,000 units of the SABA Radio Type S-35. It introduced for the first time on the market dynamic loudspeakers which became soon a bestseller. The company developed the first radio receiver with search and automatic fine tuning in all bandwidths. In 1951 IFA, a consumer industry electronics show in Berlin allowed SABA to show the first TV receiver to the world. SABA successes enabled the company to manufacture tape recorders. It introduced the large TV screen projector 'Telerama' on