Bingo has come a long way from marking paper cards to playing digitally. The...

https://measuralogic.com/what-happened-to-the-bingo-card-the-technology-reinventing-a-classic-game/

Bingo has come a long way from marking paper cards to playing digitally. The classic 90-ball game now uses auto-dabbers to keep up with the pace, making it easier to follow each number