Bingo started with paper cards, but digital play has changed the game,...

https://johnnywrbo401.wpsuo.com/what-changed-from-paper-bingo-cards-to-digital-bingo-cards

Bingo started with paper cards, but digital play has changed the game, especially with 90-ball (numbers 1-90). Auto-dabbers now mark your numbers automatically, so you don’t miss a call