punch card

Definitions

1. 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. Such a card, the size of a US dollar bill and having 80 columns of 12 rows, used in early mainframe computers.
   historical
3. A card given to a customer and punched with a hole at each purchase, allowing a reward to be claimed when fully punched.

Equivalents

Examples

“Programming by typing C++ or Python yourself might eventually seem as ridiculous as issuing instructions in binary onto a punch card.”

CEFR level