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

https://www.bookmarking-planet.win/slot-machines-once-stood-over-50-feet-tall-on-casino-floors-loaded-with-levers

Slot machines used to take up entire casino floors with cabinets over 50 inches tall. Now, these games have shrunk to fit comfortably on phone screens just 6 inches wide