Slot machines have come a long way from their bulky 50-foot floor-to-ceiling...

https://wiki-byte.win/index.php/Why_Do_Old_Slot_Machines_Need_a_Coin_Mechanism%3F

Slot machines have come a long way from their bulky 50-foot floor-to-ceiling setups. Today, you can play classic slots right on a phone screen that’s just 6 inches wide