Elektronika B3-21

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Elektronika B3-21 (Cyrillic: Электроника Б3-21) was the first Soviet programmable calculator. It was released in 1977 and was sold initially for 350 rubles (190 in 1980–1981, and just 80 rubles at late 1981). For comparison, 120 rubles was a monthly engineer's salary.^{[citation needed]} Production was stopped in 1982 because of introduction of more advanced Elektronika B3-34.