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> Progressive Slot Machines Types
Random Number Generator
Nowadays slot machines are computerized. They programme the odds. In modern slot machines, the reels and lever are present for historical and entertainment reasons only. The positions of the reels depend on a Random Number Generator. There is a Random Number Generator in the machine's software.
Random numbers are constantly generated by the RNG at an extremely high rate. When a player presses the Play button the most recent random number determines the result. The result varies depending on exactly when the game is played. The result would be different a fraction of a second earlier or later.
The numbers generated by the RNG seem to be not exactly random. The sequence of numbers is repeated by most of the RNGs. This behavior is due to poor programming. Pseudo RNGs with very long periods are relatively easy to build. The computer that is able to complete a single period in the expected lifetime of the universe hasn't been invented yet. It was Ronald Dale Harris, a former slot machine programmer, who knew the pseudo RNG code and seed values. He discovered equations for specific gambling games like Keno. Then the prediction was made that the next set of selected numbers would be based on the previous games played. But it is impossible for most machines, because numbers are picked by the RNG even when no one plays. So you can't find an exact place of a number in the sequence.
Percentage Of The Payout
The percentage of winnings paid out of the money that is wagered by players is 82–98 per cent. This payout percentage is called theoretical. Jurisdictions influence the minimum theoretical payout percentage. Law or regulation are used to establish it. A certain winning pattern exists nearly in every casino. It concerns the amounts they pay and the frequencies of these pay-outs. The winning patterns on slot machines are carefully selected to yield a certain fraction of the money played to the house. The rest of the money goes to the players.
At the factory when the software is written a slot machine's theoretical payout percentage is set. Changing the payout percentage requires a physical swap of the software. Being a time-consuming process it is done not very often. In certain jurisdictions the EPROM has a tamper-evident seal. Only Gaming Control Board officials can change it. The audit of slot machines is made by some jurisdictions make sure that they contain only approved software.
The technology being developed by the Nevada Gaming Commission would allow the casino's slot manager to change the game, the odds, and the payouts remotely. The change can be done only after the selected machine has been idle for at least four minutes. The machine must be locked to new players for four minutes and display an on-screen message informing potential players that a change is being made after the change is made.
Linked Machines
Offering of a particularly large prize, or jackpot becomes possible when a group of machines is linked in a special way. Each slot machine in the group contributes a small amount to this progressive jackpot, awarded to a player who gets a specific combination of symbols. A single slot machine's jackpot is considerably less than the progressive jackpot.
There can also be multiple casinos consisting of multiple machines. In these cases the manufacturer owning these machines is responsible for paying the jackpot.
Near-miss Programming
The reel display of modern slot machines is under computer software's control. That is why the slot machine can be programmed to display combinations that are close to winning combinations.
This practice of showing combinations that are similar to winning combinations more frequently than would occur randomly is called near-miss programming.
There is a related phenomenon which is also called near-miss. The chance of a winning combination appearing on a pay line is controlled by the winning percentages programmed into the slot machine. However, the combinations appearing above and below the pay line are all roughly equally randomly distributed. There are roughly equally randomly distributed combinations above and below the pay line. This phenomenon only occurs where abbreviated physical reels are used to display a win pattern based upon the RNG. In video slot machines the symbols that appear around the winning line are usually an accurate depiction of how the reels were mathematically modeled.
The issue of a near-miss above or below the pay line was also the subject of the Nevada Gaming Commission investigation. So long as the near-miss above or below the pay line was not specially programmed it was recognized legal. In other words, any other combination must be just as likely to occur as the near-miss. The machine cannot be specially programmed to show winning combinations more frequently than other combinations above or below the pay line.
Near-miss programming, where a near miss is inaccurately displayed is not allowed in Australia either. Due to this, regulators use stop motion cameras to audit manufacturer's practices.
Slots Fraud
Mechanical slot machines and their coin acceptors were sometimes susceptible to cheating devices and other scams.
Modern slot machines are controlled by EPROM computer chips and coin acceptors were changed for bill acceptors. They are designed with advanced anti-cheating and anti-counterfeiting measures and are difficult to defraud. Nowadays microwaves are used to defraud slot machines.
It doesn’t require much skill to play slots. Slots give you an opportunity to win a lot of money. The main feature of all slots is that they work with the help of RNG. RNG is a Random Number Generator. RNG is a microchip, which is constantly churning out thousands of numbers a second. Even if nobody plays RNG works. When you hit a spin the machine takes the next number out which it then translates into the position which the reels should stop at, and whether you have won or not! Decide how much money or coins you can spend for one go and only then begin to play. If you have enough money or credits you’d better make maximum bets. Maximum bets give you an opportunity to get the maximum payout, which for some slots is the jackpot. The payout depends on the type of a slot machine.
The first gambling machine, on which all modern slots are based, was invented by Charles Fey in 1887. Instead of symbols we have now there were regular playing card symbols. The gambling machine consisted of three mechanical reels and a lever. The lever had to be pulled to make the reels move. It was Charles Fey who offered the first slot machine to the public. The first slot consisted of three mechanically spinning reels. There were ten pictures (cards) on each reel. The combination of three equal cards was considered to be a winning combination. In 1889 there appeared slots, which gave an opportunity to win the jackpot. Fey’s first slot machine was called the Liberty Bell. Then only women played slots. Women played slots while their men gambled. There was a period of time when any kind of gambling was forbidden. As a result “Liberty Bell Gum Fruit” slots appeared. With “Liberty Bell Gum Fruit” people could buy a chewing gum and as a bonus they got an opportunity to have a spin. Pictures of different fruits were used as the symbols. At the end of the 20th century computerized slots and video poker machines appeared. Modern slots are much easier to use. Gamblers push the button and the game starts. Now playing slots through Internet is available for players from all over the world.
There are many types of slot machine configurations but all work according to the same principles - put the money in the slots and pull the handle! Traditionally two main types of slots are distinguished: straight and progressive slots. The main feature, which distinguishes straight slots from other types is that you get paid according to the payout table, which is shown on the slot machine. Straight slots in their turn can be divided into multiplier, bonus multiplier, multiple payline and buy-a-pay slots. The main feature of multiplier slots is that the payout for a winning combination depends on the number of coins bet. The main feature of the bonus multiplier slots is a bonus round, which is activated if you make maximum bets. The feature of multiple payline slots is that the number of active payline is dependent on the number of coins being bet. The Buy-a-Pay slots are profitable only if you place maximum bets. Progressive Jackpot is the main characteristic of the progressive slots. Progressive jackpot grows with each coin being bet. The jackpot total is posted above the machine and can grow to enormous sums of money.
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