...Depending on the type of calculation, there are calculators for commercial calculations, function calculations, program calculations, and specialized business calculations. Commercial calculators in particular are equipped with functions such as memory, constants, percentages, and roots, and are the most widely used. In 1962, Samrock Comptometer of the UK developed a calculator called the ANiTA, and the first one was developed in Japan in 1964. At the time, vacuum tubes were used as the calculation elements, and later transistors and diodes were used. They were about the same size as a television and cost around 400,000 yen at the time. ... *Some of the terminology that mentions "Anita" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…計算処理の内容から商業計算,関数計算,プログラム計算,専用業務計算などの電卓があり,とくに商業計算用電卓は,メモリー,定数,パーセント,ルートなどの機能を具備し最も多く普及している。 1962年イギリスのサムロック・コンプトメーター社がアニタ(ANiTA)という電卓を開発,日本では64年に第1号機が開発されている。当時の演算素子には真空管,のちにトランジスターやダイオードを使用し,大きさはテレビなみで価格も当時で40万円前後していた。… ※「アニタ」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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