| 41. | During the following years, mainly punched cards were used.
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| 42. | Punched cards and paper tape are obsolete WORM media.
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| 43. | With the development of computers punched cards found new uses as their principal input media.
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| 44. | Card readers and punches developed for punched card machines were readily adaptable for computer use.
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| 45. | The IBM 519 Card Reproducer could determine whether a deck of punched cards were equivalent.
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| 46. | Incompletely punched cards can cause serious errors to occur in data-processing operations utilizing such cards.
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| 47. | This is not the case; Kennedy Dougan patented a punched card voting system in 1890.
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| 48. | Paper tapes constructed from punched cards were widely used throughout the 19th century for controlling looms.
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| 49. | Marking the start of a job was a punched card that started with / / JOB.
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| 50. | The cover features an IBM 5081 punched card.
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