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 In certain contexts such as higher education, scientific calculators have been superseded by graphing calculators, which offer a superset of scientific calculator functionality along with the ability to graph input data and write and store programs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
Skyles Electric Works Skyles Electric Works Skyles Electric Works was founded in California by Bob Skyles, a former Commodore engineer, to produce hardware add-ons for the Commodore PET. Like Apple Computer it began in a garage in Cupertino, but for most of the company's existence it was based in Mountain View. The first products from Skyles Electric Works were memory expansions and keyboards (the first PETs had calculator-style keys which were unsuited to touch-typing). The earliest software products were firmware, including the "Command-O" and "Disk-O-Pro", which enhanced the BASIC language of the PET. However the company also published cassette and disk-based software including