Slot machines used to fill casino floors with massive cabinets often over 50...

https://www.coast-bookmarks.win/slot-machines-have-come-a-long-way-from-the-bulky-cabinets-that-once-stood-over

Slot machines used to fill casino floors with massive cabinets often over 50 feet tall in early designs. Now you can play those games on screens as small as 6 or 7 inches right in your pocket