Slots have come a long way since Charles Fey’s original three-reel machine....

https://shed-wiki.win/index.php/Mechanical_Slot_vs_Video_Slot:_Which_One_Is_More_Random%3F

Slots have come a long way since Charles Fey’s original three-reel machine. From Bally’s Money Honey bringing the first electromechanical magic to Fortune Coin Company’s electronic innovations, the game evolved fast