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

https://www.seo-bookmarks.win/bingo-has-evolved-from-paper-cards-to-digital-play-making-the-game-faster-and

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