Once, slot machines were giant cabinets over 50 feet tall, heavy and bulky on...

https://www.web-bookmarks.win/remember-when-slot-machines-were-these-massive-cabinets-standing-over-6-feet

Once, slot machines were giant cabinets over 50 feet tall, heavy and bulky on the casino floor. Now, those same games fit comfortably on smartphone screens just 6 inches across. This shift means you can spin the reels anywhere without the noise or crowds