Scientific calculator was the first company to produce one (Casio fx-7000G). Scientific calculator A scientific calculator is a type of electronic calculator, usually but not always handheld, designed to calculate problems in science, engineering, and mathematics. They have almost completely replaced slide rules in traditional applications, and are widely used in both education and professional settings. In certain contexts such as higher education, scientific calculators have been superseded by graphing calculators, which offer a superset of scientific calculator functionality along with the ability to graph input data and write and store programs for the device. There is also some overlap with the
Yamaha electric guitar models Yamaha electric guitar models The is a multinational corporation and conglomerate based in Japan with a wide range of products and services, predominantly musical instruments, motorcycles, power sports equipment and electronics. Yamaha, a company that is known for having an extensive broad range of products, from motorcycles to musical instruments, produces electric guitars models since 60's. It follows a compilation of these products. In 1967, Yamaha have changed the series # from S to SG series. Yamaha began using the "SG" (solid guitar) prefix for their solid bodied guitars when they introduced their first solid-body model in 1966 and continued