Adler 80D (EC 80D)

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At the beginning of the 1970s, the German business machine manufacturer Triumph-Adler cooperated with the Japanese company Omron and supplied mainly the European market with modern desktop calculators. As the world noticed Busicom's pocket calculator at the beginning of 1971, every manufacturer tried to come out with their own models as soon as possible. Omron, on the other hand, concentrated its efforts on producing the cheapest calculator, so introduction of the first pocket calculator had to wait years. The first battery-powered "handy" model was the Omron 802 in 1972, which the German company marketed under model numbers Triumph 802 and Adler 802. The first battery-powered small calculator, the Omron 81 appeared a year later, and marketed this under the Triumph and Adler 80D model numbers. However, it already differed significantly from the Japanese original: while that was in portrait format, the German one is landscape in accordance with current trends (see Casio Mini). The machine with algebraic logic turned out to be a reliable type, but its production costs were higher than expected, so from now on, with a few exceptions, only the production of desktop calculators, which could be sold at a higher profit, remained at the Japanese company Omron.