English Dictionary

punch card

noun

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.

I used a punch card to input data into the computer.

意味（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.

意味（2）

(computing, historical) Such a card, the size of a US dollar bill and having 80 columns of 12 rows, used in early mainframe computers.

意味（3）

A card given to a customer and punched with a hole at each purchase, allowing a reward to be claimed when fully punched.