History of science and technology in Japan the idea to Kihara. The Walkman was commercially released in 1979. Kei cars are a category of small automobiles invented in Japan, including passenger cars, vans, and pickup trucks. They are designed to exploit local tax and insurance relaxations, and in more rural areas are exempted from the requirement to certify that adequate parking is available for the vehicle. The world's first all-electric compact calculator was the Casio Computer Company's Model 14-A, released in 1957. The first electronic desktop calculator with on-board memory was the Casio 001, released in 1965. In 1967, Casio released the AL-1000, the world's first programmable
Union Electric Company primarily in Missouri, where more than half of its customers reside in the St. Louis metropolitan area. It also serves adjoining parts of Illinois, and formerly served Iowa as well through the mid-1990s. Union Electric Company The Union Electric Company of Missouri (formerly ) was an electric power utility that was organized in 1902 and grew to be one of the S&P 500 largest companies in the United States. In 1997, its holding company merged with a smaller neighboring utility, Central Illinois Public Service Company through its holding company, CIPSCO Inc. (formerly ), to form Ameren Corporation () based in