A slot machine known variously as a fruit machine, puggy, the slots, poker machine/pokies, or simply slot, is a casino gambling machine with three or more reels which spin when a button is pushed. Slot machines are also known as one-armed bandits because they were originally operated by one lever on the side of the machine, as distinct from a button on the front panel, and because of their ability to leave the player impoverished or in debt, with bandit as a synonym for “thief”. Many modern machines are still equipped with a legacy lever in addition to the judi slot button.
Slot machines include a currency detector that validates the money inserted to play. The machine pays off according to patterns of symbols visible on the front of the machine when it stops. Modern computer technology has resulted in variations on the slot machine concept. Slot machines are the most popular gambling method in casinos and constitute about 70 percent of the average casino’s income.
A person playing a slot machine can insert cash or in ticket-in and ticket-out machines a paper ticket with a barcode, into a designated slot on the machine. The machine is then activated by means of a lever or button, or on newer machines, by pressing a touchscreen on its face. The game itself may or may not involve skill on the player’s part or it may create the illusion of involving skill while only being a game of chance.
The object of the game is to win money from the machine. The game usually involves matching symbols, either on mechanical reels that spin and stop to reveal one or several symbols, or on simulated reels shown on a video screen. The symbols are usually brightly colored and easily recognizable, such as images of fruits, numerals or letters, and simple shapes such as bells, diamonds, or hearts; newer video slot machines use animated cartoon characters and images of popular actors or singers.
Multi-line slot machines have become more popular since the 1990s. These machines have more than one payline which means that visible symbols that are not aligned on the main horizontal may be considered for winning combinations. Traditional 3 reel slot machines commonly have three or five paylines, while video slot machines may have 9, 15, 25, or as many as 1024 different paylines. Most video slot machines have a themed game, some of which feature graphics and music based on popular entertainers, motion pictures or TV programs with a bonus round.
In the last few years, new multi-denomination slot machines have been introduced. With these slot machines, the player can choose the value of each credit wagered from a list of options. Based upon the player’s selection, the slot machine automatically calculates the number of credits the player receives in exchange for the cash inserted and displays the number of available credits to the player.