Slot machines used to be massive, often with screens over 40 inches and heavy...

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

Slot machines used to be massive, often with screens over 40 inches and heavy cabinets weighing hundreds of pounds. Now, they fit comfortably in your pocket on a 6-inch phone screen