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Depending on the programming language, debugging output statements could be quickly activated and "commented out" by using cards with such statements punched with the comment character (e.g., 'C' in Fortran) in column 80 of the card; turning the card end-for-end would put the 'C' in the leading column, which transformed the now backwards card's ...
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 .
The most important factor to remember is the intent of the card. "The words you use to end a card can evoke emotion as well as express intention toward a response," says Natalie Bernstein, Ph.D ...
Because punched card readers scan uniform rectangular holes in a precise arrangement, any damage to the physical card makes it unusable. In the 1950s and 1960s, when the use of punch cards became widespread, manufacturers printed a warning on each card reading "Do not fold, spindle or mutilate".
A typical PechaKucha Night includes 8 to 14 presentations. Organizers in some cities have customized their own format. For example, in Groningen , Netherlands , two six-minute, 40-second presentation slots are given to a live band, and the final 20 seconds of each presentation includes an immediate critique of the presentation by the host's ...
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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 computer card punches and ...
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: 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