punch card
noun1
A card that can have holes or notches cut in it, especially one for storing data, that can be sorted according to combinations of holes present or absent.
2
Computing, Engineering, Mathematics, Natural sciences, Physical sciences, Sciences Historical Such a card, the size of a US dollar bill and having 80 columns of 12 rows, used in early mainframe computers.
- Programming by typing C++ or Python yourself might eventually seem as ridiculous as issuing instructions in binary onto a punch card.2023 November 13, James Somers, “A Coder Considers the Waning Days of the Craft”, in The New Yorker, →ISSN:
3
A card given to a customer and punched with a hole at each purchase, allowing a reward to be claimed when fully punched.
- Synonyms
- index card, punched card, Hollerith card
- Related terms
- multipunch