Slot machines are incredibly notorious as they bring the player close to winning but never to a complete win. These machines are present in all casinos and are also popular at airports and bars. The chance to win a decent prize at one of these machines stands at three times in a million rolls. Online slot game work on a combination of a minimum of three reels which are controlled by drums placed inside the machine. To win, the player needs to have all the identically similar symbols in all the slots which would trigger a mechanism to display a winning message.
Slots were invented in New York in the year 1891 based on the game of poker. It was nothing like the modern digitalized slot machines where everything happens with the push of the button. This machine gained popularity in bars and other hangout places and worked by pulling a level which would roll the drums. Bars had customized these machines to give out combos or free beverages, for example, a king and a queen will buy you your favourite burger or whiskey. In 1987 an inventor from California had come up with a fascinating slot machine known as the liberty bell. It had three slots with symbols of cards, and the biggest prize could only be won if one gets three bells. This became so popular that in the following year all local businesses like cafes, pizza stations, supermarkets, restaurants and burger stand had a liberty bell placed in the centre. Until today, most casinos have a digitalized version of this game.