Bingo started with paper cards in halls, where players marked numbers by hand....

https://charlie-wiki.win/index.php/Why_Did_Bingo_Move_From_Halls_to_Phones_and_Tablets%3F

Bingo started with paper cards in halls, where players marked numbers by hand. The shift to digital brought auto-dabbers, so you no longer miss a called number, especially in 90-ball (1-90) games