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The IBM 519 Document-Originating Machine, introduced in 1946, was the last in a series of unit record machines designed for automated preparation of punched cards. It could * reproduce all or parts of the information on a set of cards * "gangpunch" - copy information from a master card into the following detail cards * print up to eight digits on the end of a card * compare two decks of cards * summary punch information provided by a connected accounting machine * “mark sense.” - marks made with an electrographic pencil in designated locations on a punched card are sensed and then holes corresponding to those marks punched into the card * number cards consecutively (an optional feature) It operated at 100 cards per minute. Operations of the 519 were directed by a removable control panel. The reproducing, gangpunching, summary punching, and comparing features of the IBM 519 are very similar to those of the IBM 513 and IBM 514. ==References== * * 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「IBM 519」の詳細全文を読む スポンサード リンク
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