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Casio was an early manufacturer of calculators electric and electronic calculators. It produced electric relay calculators in the 1950s and early 1960s and transistorised desktop calculators in the mid 1960s.
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6 lut 2010 · A celebration of old calculators showing the evolution from mechanical calculator to pocket electronic calculator Featuring - Mechanical & early electronic desk calculators.
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The Museum of HP Calculators displays and describes Hewlett-Packard calculators introduced from 1968 to 1986 plus a few interesting later models. There are also sections on calculating machines and slide rules as well as sections for buying and selling HP calculators, an HP timeline, collecting information and a software library.
29 lut 2020 · The Casio 121-A/AS-A is implemented with mostly second-generation small and medium-scale Japanese MOS (Metal-Oxide Semiconductor) integrated circuit technology made by NEC and Hitachi, along with a relatively small amount of discrete components compared to earlier Casio electronic calculators.
Vintage Calculators. A celebration of old calculators showing the evolution from mechanical calculator to pocket electronic calculator. Featuring - Mechanical & early electronic desk calculators. Strange hand-held calculators. Articles, photographs, and databases from the archives of the International Association of Calculator Collectors.
