![]() The holes in each column were arranged in a manner that each sequential column represented a character such that each card developed a single line of code. How to use a Punch Card?Ī punch card looked like a cardboard sheet with lots of holes in it on each column. ![]() Later when Hollerith founded IBM, a software & computer development company they went popular by the name of IBM cards. These punch cards were used for recording data during the US census. In 1890 Herman Hollerith introduced a method by which punch cards could be used as instruments to record information and store data using a punch card reading machine. With time, the cards started becoming popular and by 1832 Semen Korsakov started using punch cards to save information and search data. It is quoted that Joseph Marie Jacquard used to create portraits woven in silk using these punch cards. The history of punch cards dates back to 1725 when they were initially used in the textile industry. The set of punch cards was then used to create a computer program or means of a card reader which could interpret the information on the card as digital information. The handwritten program or computer code would be later converted into punched cards using a punch card machine. These cards could be installed in a card reader machine which would convert the sequence of these holes into information that could be used digitally.įor instance, in the days of ancient computers, a person who used to program computer codes would write code manually in a handwritten form. The primary use of punch cards could be summed up as the storage of information and other data during the days of early computers. ![]() “A set of paper cards in which several holes are punched using a machine or manually to represent codes and data related to computers and programming” Concerning the discovery of Punch Cards, they are also called Hollerith Cards or IBM Cards since Herman Hollerith was the founder of IBM. ![]() Punch cards have many names, they can be called “Punched Cards”. ![]()
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