Slots are among the most popular casino games which offer more payouts compared to the other casino games of roulette, blackjack, poker etc. A slot machine is usually generally known as a fruit machine or possibly 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, United States. Initially he designed the equipment with three spinning reels and five symbols comprising diamonds, hearts, spades, horseshoes as well as a liberty bell.

Later many improvements were made to Fey's machine. In 1996 the WMS Industries Inc developed the very first video slot machine, which gave the place of winning one more payout. Instead of the normal three spinning reels, an excellent online slot gambling video slot comprises five reels. Unlike the 3 reel versions, which offer just one payline, an online video slot can offer as many as nine paylines.