Slot machines started as huge cabinets stretching over 50 feet of floor space....

https://www.red-bookmarks.win/slot-machines-have-come-a-long-way-since-the-bulky-cabinets-that-could-be-over

Slot machines started as huge cabinets stretching over 50 feet of floor space. Today, they're mini devices you can play on your phone’s 6-inch screen