punchcards | punched tapes | |
---|---|---|
errors: | If errors occur, the punchcard will be crushed out and a new one will be punched. | The incorrect column will be deleted and jumped over on passage. Further you can cut off the incorrect part and put a new one in. |
information: | Different contents can be compared and sorted, because they are placed on different cards. For example the election in the USA. | Perfect for storage of linear programs, because the reading implied a linear sequence. But it isn't useful for statistical enquiries. |