Slots are among the most popular casino games that provide more payouts compared to another casino games of roulette, blackjack, poker etc. A slot machine is often referred to as a fruit machine or perhaps a poker machine. Sometimes a slot machine is also termed as a one-armed bandit. Charles Fey first invented the one-armed bandit in 1887 in San Francisco, Full Review USA. Initially he designed the machine with three spinning reels and five symbols comprising diamonds, hearts, spades, horseshoes and a liberty bell.

Later many improvements were made to Fey's machine. In 1996 the WMS Industries Inc developed the first video slot machine, which gave the place of winning yet another payout. As opposed to the common three spinning reels, an online video slot comprises five reels. Unlike the three reel versions, which offer just one payline, an online video slot can offer as many as nine paylines.