| 31. | Data was still input using punched cards until the mid-1970s.
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| 32. | Older examples are floppy disks, Zip disks, or punched cards.
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| 33. | Dehomag leased and maintained the German government's punched card machines.
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| 34. | Windows were broken and computer tapes and punched cards tossed onto the street below.
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| 35. | Voters ( usually ) mark their ballots, which may be an punched card ballot.
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| 36. | Businesses were familiar with storing data on punched cards and keypunch machines were widely employed.
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| 37. | Punched cards had been in use since the 1890s; their technology was mature and reliable.
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| 38. | Data input was from punched cards or magnetic tape.
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| 39. | There was extensive use of IBM punched card machines for calculations made at atomic bombs.
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| 40. | But punched cards were just one option for storage.
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