Slot machines used to fill casino floors with cabinets over 40 inches tall,...

https://fernandosmastercolumns.swiftnestly.com/posts/what-is-the-difference-between-cabinet-size-and-game-window-size

Slot machines used to fill casino floors with cabinets over 40 inches tall, heavy and loud. Now they fit on your phone’s 6-inch screen, offering the same games anywhere you go