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    • Voting technology | MIT Election Lab
      • Punch-card voting devices were developed in the 1960s and relied on modified Hollerith cards to record votes. In the most common version of the punch-card machine, a blank pre-scored card is inserted into a holder. The holder contains a ballot and a set of targets associating each choice with a punch position on the card.
      electionlab.mit.edu › research › voting-technology
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  2. Mar 10, 2024 · Punch cards (or " punched cards "), also known as Hollerith cards or IBM cards, are paper cards where holes may be punched by hand or machine to represent computer data and instructions. They were a widely used means of inputting data into early computers.

  3. en.wikipedia.org › wiki › Punched_cardPunched card - Wikipedia

    A punched card (also punch card or punched-card) 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.

  4. Mar 31, 2024 · Definition and Uses. Last Updated : 31 Mar, 2024. Punch cards, also called “Hollerith cards,” or “IBM cards,” are stiff paper cards where holes can be punched manually or by a machine to symbolize computer data and commands. These cards were crucial for entering data into early computing systems.

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  6. www.ibm.com › history › punched-cardThe punched card | IBM

    Punched cards, also known as punch cards, dated to the late 18th and early 19th centuries when they were used to “programcloth-making machinery and looms. In the late 1880s, inventor Herman Hollerith, who was inspired by train conductors using holes punched in different positions on a railway ticket to record traveler details, invented ...

  7. Punched cards are the only method for loading a program onto the machine. Capable of reading 300 cards a minute, then punching at a rate of 80 cards per minute, the IBM 1130 was also...

  8. Punched cards. A punched card is a flexible write-once medium that encodes data, most commonly 80 characters. Groups or "decks" of cards form programs and collections of data. The term is often used interchangeably with punch card, the difference being that an unused card is a "punch card," but once information had been encoded by punching ...

  9. Feb 24, 2017 · A punch card is a simple piece of paper stock that can hold data in the form of small punched holes, which are strategically positioned to be read by computers or machines. It is an early computer programming relic that was used before the many data storage advances relied upon today.

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