Slot machines used to tower over players with screens 40 inches or larger,...

https://wiki-room.win/index.php/What_Parts_Are_Inside_a_Traditional_Slot_Machine_Cabinet%3F

Slot machines used to tower over players with screens 40 inches or larger, taking up a ton of space on casino floors. Now, these games easily fit on your phone’s 6-inch screen, letting you spin reels anywhere