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Slots - Internet Slots - Online Slots Technology

online slot machine A slot machine (American English), poker machine (Australian English), or fruit machine (British English) is a certain type of gambling machine. Classically, a slot machine is a coin-operated machine with three or more reels that rotate when a lever on the side of the machine is pulled. The machines include a currency detector that validates the coin or money inserted to play. Slots typically pay off based on patterns of symbols visible on the front of the machine when it stops.
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Today, slot machines have become one of the most popular attractions in casinos. The slot machine was invented in 1895 by Charles Fey of San Francisco, California. The first machine, known as Liberty Bell, had pictures of diamonds, hearts, spades, and cracked Liberty Bells on three mechanical reels. Three bells in a row produced the biggest payoff, ten nickels. Liberty Bell was a huge success and spawned a thriving mechanical gaming device industry. Another early machine gave out winning in the form of fruit flavoured chewing gums with pictures of the flavours as symbols on the reels. The popular cherry and melon symbols derive from this machine. The "BAR" symbol now common in slot machines was derived from an early logo of the Bell-Fruit Gum Company. In 1964 , Bally developed the first fully electromechanical slot machine called Money Honey.
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Slot Machine Technology

It is a common belief that the odds on a machine have something to do with the number of each kind of symbol on each reel, but this is not the case. Modern slot machines are computerized, so that the odds are whatever they are programmed to be. For instance, if the jackpot combination is "7-7-7", slot machine owners can fool/tease people by making "7-7-(non-7)" come up frequently. In modern slot machines, the reels and lever are present for historical and entertainment reasons only. The positions the reels will come to rest on are chosen by a computer chip as soon as the lever is pulled or the "Play" button is pressed.

Slot machines are typically programmed to pay out around 82-98% of the money that goes into them as winnings. The winning patterns on slot machines, the amounts they pay, and the frequency at which they appear are carefully selected to yield a certain percentage of the cost of play to the "house" (the operator of the slot machine), while returning the rest to the player during play. Suppose that a certain slot machine costs $1 per spin. It can be calculated that over a sufficiently long period, such as 1,000,000 spins, that the machine will return an average of $950,000 to its players, who have inserted $1,000,000 during that time. In this (simplified) example, the slot machine is said to pay out 95%. The operator keeps the remaining $50,000. The payout percentages are set at the factory when the casino orders the machines. Changing the payout percentages after a slot machine has been placed on the gaming floor requires a physical swap of the game software which is usually stored on an EPROM but may be downloaded to Non-Volatile Random Access Memory (NVRAM) or even stored on CDROM or DVD depending on the technological capabilities of the machine and the regulations in each jurisdiction. In Nevada, the casino is forbidden by law to alter the payout chip. These chips are sealed with a tamper-evident seal and can only be changed by the state Gaming Control Boar . Other jurisdictions may have different rules.

Slot machines common in casinos at this time are more complicated. Most allow players to accept their winnings as credits which may be "spent" on additional spins.

Often machines are linked together in a way that allows a group of machines to offer a particularly large prize, or "jackpot". Each slot machine in the group contributes a small amount to this progressive jackpot, which is awarded to a player who gets (for example) a royal flush on a video poker machine, or a specific combination of symbols on a regular or 9 line slot machine. The amount paid for the progressive jackpot is usually far higher than any single slot machine could pay on its own.

In some cases multiple machines are linked across multiple casinos. In these cases, the machines may be owned by the machine maker who is responsible for paying the jackpot. The casinos lease the machines rather than owning them out right. Megabucks may be the best known example of this type of machine. Megabucks Nevada starts at $7,000,000 after a jackpot. The new penny Megabucks video game has a jackpot that starts at $10,000,000.

Slot machines that are not linked to a large regional jackpot such as Megabucks usually have better payout percentages, as linked machines have to take into consideration the large jackpot amount into their payout percentage calculations.
 

Online Slots - Myths debunked

- Standard slot machines do not get "hot" or "cold". The chances of hitting a winning combination are exactly the same with every spin.
(Exception: UK-style AWP machines are progressive which means chances of winning will increase over time if the machine has not paid any wins out. Many also "force" wins on players in order to meet the payout percentage )
- Except possibly in a few jurisdictions, slot machines are never "due to be hit" if they haven't paid out a jackpot in a while.

- There is a science to the placement of slot machines on the gaming floor, but the highest paying machines are not necessarily placed in high-traffic areas. Typically, machines of similar payback percentages are grouped together, with 1% or less difference from machine to machine in the group.

- Using your slot club card does not affect the machine's payout percentage.

- In most jurisdictions, casinos cannot alter the machine's percentages by time of day, day of week, or remotely via a computer. Changing the percentage payouts on these machines is an involved process of physically replacing parts inside the machine, and can't be done without regulatory oversight.

(Exception 1: UK-style AWP machines can have their percentage easily altered via a percentage key (inserted onto the machines motherboard) or by the setting of dip switches. There is no requirement for this to be supervised or reported in the UK.)

(Exception 2: In many markets where central monitoring and control systems are used to link machines for auditing and security purposes, usually in wide area networks of multiple venues and thousands of machines, player return must usually be changed from a central computer rather than at each individual machine. A range of percentages are preprogrammed into the game software and selected by configuring the machine remotely .
 

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