Calculator to the development of electronic calculators. The Casio Computer Company, in Japan, released the Model "14-A" calculator in 1957, which was the world's first all-electric (relatively) compact calculator. It did not use electronic logic but was based on relay technology, and was built into a desk. In October 1961, the world's first "all-electronic desktop" calculator, the British Bell Punch/Sumlock Comptometer ANITA (A New Inspiration To Arithmetic/Accounting) was announced. This machine used vacuum tubes, cold-cathode tubes and Dekatrons in its circuits, with 12 cold-cathode "Nixie" tubes for its display. Two models were displayed, the Mk VII for continental Europe and the
Delta Electric Company Delta Electric Company The Delta Electric Company was an American electronics manufacturer formed in 1913 in Marion, Indiana that produced lanterns, flashlights, automotive and bicycle lighting, battery tubes, horns, horn buttons, light switches, other battery-powered electrical parts, and bilge pumps. It was moved to Marion from an existing business in Chicago following a stock purchase. Delta was purchased in 1964 or 1965 by the Novo Industrial Corporation. One of Novo Industrial Corp.'s subsidiary companies, King Bee Manufacturing Co., was moved to Marion, and its line of automotive lighting and safety equipment, including headlamps, safety lights, directional lights, mirrors, and reflectors