Slot machines used to be these massive cabinets, sometimes as big as 50 feet...

https://celebmeadow.com/from-floor-standing-machines-to-pocket-screens-the-shrinking-footprint-of-slot-games/

Slot machines used to be these massive cabinets, sometimes as big as 50 feet tall in casino showrooms. Now, you can play similar games on your phone with just a 6-inch screen