A special feature of the particular game theme, which is activated when certain symbols appear in a winning combination is called Bonus. The player is presented with several items on a screen from which to choose. After choosing items a number of credits is revealed and awarded. There are bonuses that use a mechanical device, such as a spinning wheel. It works in conjunction with the bonus to display the amount won.
Candle is a light on top of the slot machine. It flashes to alert the operator that change is needed, hand pay is requested or a potential problem with the machine.
Slot machines in a circle or oval formation are usually called Carousel.
Coin hopper contains the coins that are immediately available for payouts. It rotates coins into the coin tray when a player collects credits. A coin diverter is used to redirect excess coins into a drop bucket, or drop box when a certain preset coin capacity is reached.
To display the amount of money or credits on the machine Credit meter is used.
There is a container located in a slot machine's base that is used to divert excess coins. It is generally used in low denomination slot machines. A drop box can be found in high denomination slot machines. There is a hinged lid with one or more locks in a drop box and there ais no such lid in a drop bucket. There exists a scheduled basis for collecting and counting the contents of drop buckets and drop boxes.
EMG is Electronic Gaming Machine.
The term Hand pay means a payout made by a slot attendant or cage, rather than the slot machine. A hand pay occurs when the amount of the payout is more than the maximum amount that was preset by the slot machine's operator. Usually, the maximum amount is set at the level where the operator must begin to deduct taxes. A hand pay could also be necessary as a result of a short pay.
Hopper fill slip is a document used to record the replenishments of the coin in the coin hopper after it becomes depleted as a result of making payouts to players. There is the slip that indicates the amount of coins placed into the hoppers, the signatures of the employees involved in the transaction, the slot machine number and the location and the date.
Low Level or Slant Top slot machines are equipped with a stool for you to sit and play. You will have to stand while playing Stand Up or Upright slot machines.
A payback percentage based on a gambler using the optimal strategy in a skill-based slot machine game is called Optimal play.
Payline is a straight or zigzagged line that crosses through one symbol on each reel, along which a winning combination is evaluated. Up to nine pay lines are contained by classic spinning reel machines and video slot machines contain up to a hundred ones.
The term Rollup is used to mean the process of dramatizing a win by playing sounds while the meters count up to the amount that has been won.
The term Short pay is used to mean a partial payout made by a slot machine, which is less than the amount due to the player is called Short pay. This occurs if the coin hopper has been depleted as a result of making earlier payouts to players. An attendant will come and re-fill the machine or the remaining amount will be paid as a hand pay.
The term Theoretical Hold Worksheet. Is used to denote a document provided by the manufacturer for all slot machines. The theoretical percentage that the slot machine should hold based on adequate levels of coin-in is idicated in it. The reel strip settings, number of coins that may be played, the payout schedule, the number of reels and other information is indicated in the worksheet.
Weight count is an American term, referring to the dollar amount of coins or tokens removed from a slot machine's drop bucket or drop box and counted by the casino's hard count team through the use of a weigh scale.

There are a lot of myths and superstitions about slots.
You can spot a winning slot machine.
The only way one can say that theslot machine is a winning one is only to catch this moment, when the machine pays out. Slot machines use random numbergenerator and that's exactly that. Random.
Casinos place loose slots near the cashier, aisle ways, etc.
In reality it is not to casino’s advantage to place loose slots at one and the same place, because in this case gamblers would play only these slots. The slots are mixed and nobody can say for sure whether this slot is a loose one or not.
Count the number of symbols on the reels to determine your odds.
It is a rude mistake. RNG decides when the machine will stop and there are thousands of combination available on a 3 reel slot machine.
Casinos can tighten or loosen slot machines from the back office.
It is not as simple as that. The casino can’t just change the chip of the slot machine. It is illegal and it has to be permitted by the commission.
A slot machine that has not been paying is due to hit.
It is not so. With every game the chances of winning are the same.
Pulling the slot machine handle produces more wins than pressing the spin button and visa versa.
It is also a mistake. These things are only mechanisms for beginning the game. The machine knows whether you win or lose before the symbols begin to stop.
Playing with hot coins improves your chances.
It is false. Nothing can affect the outcome, the machine doesn’t care and doesn’t know whether your coins are cold or hot.
Casinos set slot machines to payback more on the weekends.
One more rude mistake. The chances and odds are always the same. It doesn’t matter when you play.

Slot machines have a vivid and diverse history. Throughout the years, designs and implementation of slot machines went from mechanical to electronic, and from electronic to digital, then from digital to purely software, but the principles are still the same: the slot machine has reels which spin and, if the pre-defined winning combination plays out, you win. The player inserts coins in the machine and then wins or loses according to the outcome of the game.
Basically, slot machines are all the same. They only differ in some peculiarities: odds, payouts, payout percentage and symbols. There are so many varying designs around the classic slot machine that everyone could probably find their own ultimate preferred flavour.
The main difference is the number of lines. Slot machines can be either single line or multilane. As it can be understood from its name single line slots have only one line with 4 or 5 wheels. But multi line slots can have up to 25 lines. Multi line slots are more difficult to understand because you win according to the winning combinations on the paylines, which can be formed in many ways. It can happen that you win nothing during the game or that you win big in a short while. Paylines can be different. They can be vertical, diagonal, zigzags and what not.
Jackpot is also a feature peculiar not for all slots. In jackpot games, the slot machines accumulate a fraction of every wagered bet into a virtual pot. So the jackpot becomes bigger and bigger with every bet. Jackpots can reach several hundreds of thousands dollars. A certain winning combination hits the jackpot, and the lucky gambler collects everything that the ones before him left behind.
Since slot machines appeared they have been played with coins. Online casino slot machines are no exception to that rule, even though bets might differ slightly. Like regular slots they have betting limits, which can be even lower than in real casinos. Slots are the easiest casino games. They don’t require any decision on the player’s part.
Online slot machines also have RNG, which exclude any possibility to cheat. That’s why slots are as fair as it is only possible.

The US
In the United States the availability of slot machines is highly regulated by state governments. To regulate the possession and use of slot machines many states have established gaming control boards. There is only one state that has no significant restrictions against slot machines - Nevada. Slot machines are allowed only in hotel casinos operated in Atlantic City in New Jersey. Several states allow slot machines only on licensed riverboats or permanently-anchored barges. In Delaware there are slot machines only at three horse tracks. State lottery commission regulates them.

Native American Casinos
Slot machines are forbidden in Native American casinos located in reservations. When the tribe first reaches a pact with the state in which it is located it gets the permission to have them. Typically, a pact entitles the state to receive a fraction of the gross revenue from slot machines.

Classes Of Slots
Slot machines aren't governed by any federal law. There are different classifications of them. There are restrictions on the type of slot machines that can be used in a casino or other gaming area in some states. A centralized computer system operates "Class III" (or "traditional") slot machines. The chance of winning any payout is the same with every play. You can find Class III slots in Nevada or Atlantic City more frequently. They are sometimes referred to as "Vegas-style slots".
A centralized computer system is connected to "Class II" slot machines ("video lottery terminals" or "VLTs"). It determines the outcome of each wager. Each machine has an equal chance of winning a series of limited prizes. The casino pays a fee to the state for each Class III game. The regulations for Class II games are not so tight.

Characteristics Of Class II Games
The player is playing not against the casino but against other players. Their competition is for a common prize. There is always someone who wins. The game continues until there is a winner. In a given set there is a certain number of wins and losses. The combimation can occur again only after a new batch is initiated. The games are dependant on each other. The player must be an active participant. The same set of numbers is played by all players.

Class III Game Characteristics
The player is playing against the house. Each game is independent of previous games. The outcome of any game is unpredictable.

Slot Clubs
There is free memberships in "slot clubs" in many casinos of America. They return a small fraction of the amount of money that is bet in the form of comps (complimentary food, drinks, hotel rooms, or merchandise). These clubs require that players use cards to insert into the slot machines. Comps or "cash back" allows to make the differences in the maximum theoretical returns significant.

Australia
One of the most popular Australian poker machine games is Queen of the Nile. Gaming Machines is an official name for Australian slot machines. Australian-style gaming machines have video displays for stimulating physical reels. There are five of them in most cases. State governments regulate the use of gaming machines in Australia.
Gaming machines are found in casinos as well as pubs and clubs in some states. New South Wales legalized this style of gambling first. In 1956 they were made legal in all registered clubs in the state.
The usage of particular forms of gaming machine is allowed in Western Australia.

United Kingdom
Fruit machines, one-armed bandits and AWP are the names for slot machines in Britain. Fruit machines are commonly found in pubs, clubs, arcades, and some take-away food shops. 3, 4 or 6 reels with around 16 or 24 fruit symbols printed around them can be found on the machines. These reels are spun. If certain combinations of fruit appear, winnings are paid from the machine. Slot machines seen in casinos and elsewhere around the world are similar to these machines. These games have lots of extra features. The jackpots from these machines are limited. The UK fruit machines have some features. A player can hold one or more reels before spinning. It sometimes increases the chance of winning. A player may also be given a finite number nudges following a spin. A nudge is a single-step rotation of a reel of the player's choice.
The maximum payout for an individual game depends on the type and the location of the machine. Private members' clubs are allowed "club machines". They charge more per game and have higher jackpots.
These machines and American slot machines operate differently. The jackpot can be won in each game independently.
The AWP fruit machine is popular across Europe and in countries such as the Czech Republic, Russia, and Ukraine.

Japan
The term pachisuro is used to denote Japanese slot machines. Their ancestor is the traditional Japanese pachinko game. Slot machines are new phenomenon. Pachinko parlors and the adult sections of amusement arcades, known as game centers have them.
Regulation of the machines is fulfilled by IC chips. There are six different levels changing the odds of a "777". There is a variety of slot machines but there exist rules and regulations for all of them.

There is a man who managed to cheat slots.
It is impossible to cheat the slot machine, but to improve the payout is possible. It was proved by a gambler whose name was Tommy Glenn Carmichael.
A 53-years Tommy all his life tried to invent some kind of devices to cheat the slot machine. He was caught with one, called a top-bottom joint, and sentenced to prison. After the release Tommy began to invent new kinds of devices for cheating slot machines. The principle of his next invention was following: he inserted a guitar wire in the slot machine and it made the coins release from the hopper.
Later the slot machines were not any longer mechanical, they were computerized and as a result there appeared a need for a new device. He fooled a manufacturer into believing he was a customer and showing him the inside of a slot machine. From that experience, he learned what he needed to know to beat it. Carmichael invented what he called a “light wand. ” The wand, built with a camera battery and a bright miniature light, was used to shine into the slot machine and blind a sensor, causing the hopper to pay out coins. Other gamblers liked his invention and he had a lot of customers, which allowed him to earn up to ,000 a day. Now he could afford the most expensive cars and several houses.
But good thing will end one day. Tommy was caught using his invention in one of the casinos. He was fined, but soon came back to the same business. By this time, authorities had tapped his phone and recorded conversations with other cheats who used his device. Three years’ probation and expropriation was the punishment. He has been banned from entering any casino.