1980), and an Electronic Backgammon Game by Tyrom (ca. 1981). The first commercial graphing calculator was introduced by the Japanese firm of Casio Computer Company. Casio, founded in 1946, had sold ...
The CA53 collection – better known as the Casio Calculator watch – now comes in a finish dedicated to the original Casio personal calculator. While certain timepieces are widely regarded as ...
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