Slot machines or commonly referred as slots but also fruit machines etc. are well-known casino machines that create a game based on luck for the players. The game it’s the most popular in the live and online casinos around the world. It makes up around 70% of the Las Vegas industry. The classical version included a machine with a screen that features three or more wheels with designed symbols on it that spin. There was a lever that needed to be pulled in order for the slot mechanism to start and that’s why sometimes slots were called in a pejorative way as “one arm bandit”. The payout is made according to the patterns of the symbols displayed on the wheels. We have talked extensively, on our Betzest blog, about free slots and real money slots and their modus operandi, and in this article, we will highlight some important historic aspects of slots and how slots evolved to the present day technological developments. The term slot machine it’s related to the slot cavity in the machine were the coins are inserted, while the name fruit machine is related to the classical slots machines spinning symbols which used to be fruits like lemons, cherries, grape but also sevens and bells.