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An automatic center punch is a hand tool used to produce a dimple in a workpiece (for example, a piece of metal). It performs the same function as an ordinary center punch but without the need for a hammer. When pressed against the workpiece, it stores energy in a spring, eventually releasing it as an impulse that drives the punch, producing ...
IBM 1287 Optical Reader. The IBM 1287 is an online reader that can optically scan printed paper tapes and cut form documents to generate input data for an IBM System/360 or System/370 host. It can read machine printed data as well as handprinted numbers and optical marks (based on installed model and features).
Optical mark recognition (OMR) is the scanning of paper to detect the presence or absence of a mark in a predetermined position. [4] Optical mark recognition has evolved from several other technologies. In the early 19th century and 20th century patents were given for machines that would aid the blind. [2]
A 12-row/80-column IBM punched card from the mid-twentieth century. A punched card (also punch card[1] or punched-card[2]) is a piece of card stock that stores digital data using punched holes. Punched cards were once common in data processing and the control of automated machines. Punched cards were widely used in the 20th century, where unit ...
A punched card is a flexible write-once medium that encodes data, most commonly 80 characters. Groups or "decks" of cards form programs and collections of data. The term is often used interchangeably with punch card, the difference being that an unused card is a "punch card," but once information had been encoded by punching holes in the card ...
The Norden Electronic Vote Tallying System was the first to be deployed, but it required the use of special ink to mark the ballot. The Votronic, from 1965, was the first optical mark vote tabulator able to sense marks made with a graphite pencil. [1] The oldest optical-scan voting systems scan ballots using optical mark recognition scanners ...
Punched card input/output. A computer punched card reader or just computer card reader is a computer input device used to read computer programs in either source or executable form and data from punched cards. A computer card punch is a computer output device that punches holes in cards. Sometimes computer punch card readers were combined with ...
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. Others in the series included the IBM 513 & IBM 514 Reproducing Punch. The 519, which was "state of the art for the time", [1] could: The reproducing, gangpunching, summary punching ...
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