The first slot machine was invented in 1890 in San Francisco by the student of mechanical Charles Fey . The “ Liberty Bell “, was so called from its inventor, was a mechanical system of rollers 3 which provided different combinations of random playing cards, in any roller was included A bell in diagonal (hence the name Liberty Bell), the maximum premium of 50 cents to U.S. dollars was paid when three bells apaprivano on the same row.

The success of this invention was immediate, but in 1902, when gambling was banned in many U.S. states, the same slot machines were adapted in order to win prizes and cash, were thus replaced the symbols of the cards with those of fruit (hence Fruty Slots , a term still used in England) and consumables of various kinds, often with the symbols shown on the same roller corresponded awards generally were chewing gum and snacks.

It was the mechanism of the lever, the engine noise that triggers the sensation of physical control on the machine that made the success of the slots, a successful system that remained intact for many years.

Between the 60s and now the system of slots has been a veritable revolution forward, from first eletromeccaniche machines linked together to share a common jackpot allle recent videoslots, in which the mechanical or electrical system has been replaced by microchip with generating random numbers.

The latest evolution of slot machines is started in the mid-90s with the introduction of online casino , now there are countless types of issues with videoslots generators of numbers common and jackpots from unlikely figures, in the most recent versions are even exploited in 3d graphics chip.

What will be the next step of this game? For now we can only imagine a bright future and evolving for the Liberty Bell still young!