Card reader (punched cards)
ID: card-reader-punched-cards
A card reader for punched cards is a device designed to read data encoded on punched cards, which are pieces of stiff paper with holes punched in them to represent information. Each hole's presence or absence corresponds to specific data, such as characters, numerical values, or commands. Punched cards were widely used in the early to mid-20th century for data input and storage, particularly in computing and data processing.
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