Calculator This led the way to the first credit-card-sized calculators, such as the Casio "Mini Card LC-78" of 1978, which could run for months of normal use on button cells. There were also improvements to the electronics inside the calculators. All of the logic functions of a calculator had been squeezed into the first "calculator on a chip" integrated circuits (ICs) in 1971, but this was leading edge technology of the time and yields were low and costs were high. Many calculators continued to use two or more ICs, especially the scientific and the programmable ones, into the late 1970s. The
The Lancashire Electric Power Company The Lancashire Electric Power Company The Lancashire Electric Power Company was one of the largest private electricity companies in the UK. It was established by Act of Parliament in 1900. Its original power station was the Radcliffe Power Station which was opened by the Earl of Derby on 9 October 1905. This had two 1,500 kW turbo sets manufactured by British Thomson-Houston, generated at 10 kV (the first power station in the UK to transmit by bare electric conductors at 10kV). The first customer was the Acme Spinning Company in Pendlebury which with 75,000 spindles was the first cotton spinning