Slot machines used to be massive, with cabinets over 50 feet tall on casino...

https://riverssmartchat.novacrestiq.com/posts/why-do-slot-machines-need-locks-and-maintenance-access

Slot machines used to be massive, with cabinets over 50 feet tall on casino floors. Now, you can play the same games on your phone’s 6-inch screen anytime, anywhere