Slot machines used to take up entire casino floors with cabinets over 50 feet...

https://www.bravobookmarks.win/slot-machines-used-to-fill-casino-floors-with-massive-cabinets-often-over-50

Slot machines used to take up entire casino floors with cabinets over 50 feet tall. Now you can play the same games on screens as small as 6 inches—right on your phone