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
1957 Bandy World Championship 1957 Bandy World Championship The 1957 Bandy World Championship was contested among three men's bandy playing nations and was the first ever Bandy World Championship. Norway declined to take part due to the Soviet invasion of Hungary the year before. The championship was played in Finland from 28 February to 3 March 1957, as part of the fifty year anniversary celebrations for the Ball Association of Finland, which at the time was the governing body for bandy in Finland. The tournament was officially opened by President of the republic Urho Kekkonen. All games, which were only three, were played at