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Sheets of perforated paper. Perforated paper is a craft material of lightweight card with regularly spaced holes in imitation of embroidery canvas. It is also sometimes referred to as punched paper. Perforated paper is most commonly embroidered with cross stitch motifs and borders. Typical uses for such items include ornaments to decorate ...
IBM cards, preprinted, optionally numbered and pre-punched, were available as continuous form cards and were used for checks and other documents. [8] Continuous form paper became widely used and well known to the general public in the 1980s due to the development of microcomputers and inexpensive dot-matrix consumer printers.
Punched tape or perforated paper tape is a form of data storage device that consists of a long strip of paper through which small holes are punched. It was developed from and was subsequently used alongside punched cards , the difference being that the tape is continuous.
Most nations describe paper in terms of grammage—the weight in grams of one sheet of the paper measuring one square meter.. Other people, especially in the United States, describe paper in terms of pound weight—the weight in pounds per ream (500 sheets) of the paper with a given area (based on historical production sizes before trimming): for card stock, this is 20 by 26 in (508 by 660 mm ...
A Zygalski sheet. The method of Zygalski sheets was a cryptologic technique used by the Polish Cipher Bureau before and during World War II, and during the war also by British cryptologists at Bletchley Park, to decrypt messages enciphered on German Enigma machines.
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 .
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