Those old enough to have encountered punch cards in their lifetime are probably ... Bits are stored on a white 8×20 stud board, onto which small black pieces are placed. A white background ...

(1) See loyalty punch card. (2) An early storage medium made of thin cardboard stock that held data as patterns of punched holes. Also called "punched" cards, each of the 80 or 96 columns held one ...

This adorable DIY punch card activity, which I discovered on Instagrammer ... I waited until my cards were dry, and then I used a black fine-tipped pen to outline the shapes and write my goals.