A special feature of the particular game theme activated when certain symbols appear in a winning combination is Bonus. In the bonus, the player is presented with several items on a screen from which to choose. As the player chooses 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.
There is a light on top of the slot machine called Candle. It flashes to alert the operator that change is needed, hand pay is requested or a potential problem with the machine.
Carousel refers to a grouping of slot machines, usually in a circle or oval formation.
Coin hopper contains the coins that are immediately available for payouts. The hopper is a mechanical device that rotates coins into the coin tray when a player collects credits. There is a coin diverter used for redirecting excess coins into a drop bucket, or drop box when a certain preset coin capacity is reached.
A visual display of the amount of money or credits on the machine is called Credit meter.
There is a container located in a slot machine's base that is used to divert excess coins. Typically low denomination slot machines use a drop bucket. High denomination slot machines use a drop box. A drop box contains a hinged lid with one or more locks whereas a drop bucket doesn't contain a lid. The casino collects and counts the contents of drop buckets and drop boxes.
EGM is used as a short-hand for Electronic Gaming Machine.
Hand pay refers to 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 short pay can also result in a and pay.
Hopper fill is a document used for recording the replenishments of the coin in the coin hopper after it becomes depleted as a result of making payouts to players. The slip 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.
Playing Low Level or Slant Top slot machines you can sit as they have a stool. You can only stand playing Stand Up or Upright slot machines.
The term Optimal play means a payback percentage based on a gambler using the optimal strategy in a skill-based slot machine game.
The term Payline means a straight or zigzagged line that crosses through one symbol on each reel, along which a winning combination is evaluated. There are up to nine pay lines in classic spinning reel machines while there can be one hundred pay lines in video slot machines.
Rollup is the process of dramatizing a win by playing sounds while the meters count up to the amount that has been won.
A partial payout made by a slot machine, which is less than the amount due to the player is called Short pay. It can happen 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. It indicates the theoretical percentage that the slot machine should hold based on adequate levels of coin-in. The worksheet also indicates the reel strip settings, number of coins that may be played, the payout schedule, the number of reels and other information.
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 you'll spot a winning slot machine is when the bells are ringing and the money is dropping. 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.
Absolutely false. The RNG assures this. You have an equal chance of winning on a losing machine as you do on a machine that just paid out the jackpot.
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.
Wrong again. Your odds of winning are the same no matter if it's 4:00pm Monday, 8:00pm Saturday or 3:00am Wednesday. Casinos can not and do not do this.

Like any casino game slots have their own rules of etiquette. The first piece of slot machine etiquette is to determine deal or not to deal with particular slot machine. As a gambler you are sure to have faced such a problem: you want to go to the bar or to the restroom, but still want to keep this slot. How can other understand that your machine is in play? To do it you have to hang a coin cup over the handle of the slot machine. Placing the coin cup on the seat means the same. In casinos that use a cashless system, a personal item such as a jacket can be placed on the seat instead. If you see any of these signals at a particular machine, be sure to respect the signal and move on to a free machine. This is an extremely common occurrence, and just about every slot player has either found an abandoned card, left a card in a machine, or both. If it happens to you, put the card on the top of the slot machine. The player will come back and find it easily. While most casinos do allow smoking, it is important for those who smoke to be courteous to others, and to position the ashtray in a manner which inconveniences other players the least. The last etiquette rule is tipping a person, who brings you the winning. If you win a jackpot you should tip the attendant with a tip equal to one half of one percent of the jackpot.

United States
The United States state governments regulate the availability of slot machines. Many states have established gaming control boards to regulate the possession and use of slot machines. Nevada is the only state that has no significant restrictions against slot machines. New Jersey allows only hotel casinos operated in Atlantic City to have slot machines. There are states that allow slot machines only on licensed riverboats or permanently-anchored barges. Delaware allows slot machines at three horse tracks. They are regulated by the state lottery commission.

Native American Casinos
Native American casinos located in reservations are not permitted to have slot machines. It becomes possible when the tribe first reaches a pact with the state in which it is located. According to the pact a fraction of the gross revenue from slot machines is received by the state.

Classes Of Slots
There is no federal law governing slot machines. Each state has its own classification. 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 also called "Vegas-style slots".
There is a connection between "Class II" slot machines ("video lottery terminals" or "VLTs") and a centralized computer system. The outcome of each wager is determined by it. The chance of winning a series of limited prizes is equal for each machine. A fee for each Class III game is paid by the casino to the state. The state doesn't regulate Class II games so tightly.

Characteristics Of Class II Games
The player is playing against other players. There is a common prize for which they are competing. There is necessarily a winner in each game. The game stops when the winner appears. A given set has a certain number of wins and losses. Once a certain combination has occurred it cannot occur again until a new batch is initiated. There is a dependence of between the games. The player is an active participant of the game. The same set of numbers is played by all players.

Class III Game Characteristics
The opponents are the player and the house. The previous games don't influence the following ones. Any game has any possible outcome.

Clubs Of Slot Players
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" from these clubs makes significant differences in the maximum theoretical returns.

Slots In Australia
Queen of the Nile is a poker machine that is very popular in Australia. Australian slot machines are called Gaming Machines. In Australian-style gaming machines video displays are used to simulate physical reels. There are five of them in most cases. There are laws regulating the use of gaming machines in Australia which are created by State governments.
Not only casinos but also pubs and clubs in some states have Gaming machines. New South Wales legalized this style of gambling first. Their legalization in all registered clubs in the state was in 1956.
Western Australia only permits the use of particular forms of gaming machine.

Slots In The United Kingdom
Row of old fruit machines are usually known as fruit machines, one-armed bandits and AWP in Britain. Pubs, clubs, arcades, and some take-away food shops have fruit machines. These machines commonly have 3, but can be found with 4 or 6 reels with around 16 or 24 fruit symbols printed around them. These reels are spun. If certain combinations of fruit appear, winnings are paid from the machine. These are very similar to slot machines seen in casinos and elsewhere around the world. But some extra features can be found. However, the jackpots from these fruit machines are strictly limited. There are some features of fruit machines in the UK. A player can hold one or more reels before spinning. This can sometimes increase the chance of winning. A finite number nudges following a spin is given to a player. A single-step rotation of a reel of the player's choice is a called a nudge.
The maximum payout for an individual game depends on the type and the location of the machine. Private members' clubs have "club machines". They charge more per game and have higher jackpots.
These machines differ from American slot machines. The probability of getting the jackpot in each game is independent of any other game.
The AWP fruit machine is played in Europe and in countries such as the Czech Republic, Russia, and Ukraine.

Slots In Japan
Japanese slot machines are known as pachisuro. Their ancestor is the traditional Japanese pachinko game. Slot machines have appeared recently. Pachinko parlors and the adult sections of amusement arcades, known as game centers have them.
Regulation of the machines is fulfilled by IC chips. They have six different levels changing the odds of a "777". There are certain rules and regulations in spite of the many varieties of the machines.

Have you ever met a man who has managed to cheat slots?
It is not a secret that it is next to impossible to cheat a slot machine. But do you know that Tommy Glenn Carmichael managed to improve the payout of the machine to his benefit.
Carmichael, now 53, had a long history of inventing devices to cheat slot machines. His first device was a kind of a top-button joint. By the way, for this device he was sent to prison. After the release Tommy began to invent new kinds of devices for cheating slot machines. His next invention was a slider, a guitar wire. He inserted it into the machine, which released coins form 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. His new inventions was a light want that blinded the sensor of the slot machine and as a result got winnings. Carmichael marketed these wands to other slot cheats, making as much as ,000 a day. Now he could afford the most expensive cars and several houses.
But as known good things can’t last forever. Tommy was caught using his invention in one of the casinos. While charges from that incident were later dropped, he was caught under similar circumstances in Laughlin and later Atlantic City. By this time, authorities had tapped his phone and recorded conversations with other cheats who used his device. He served three years’ probation and lost both homes. He has been banned from entering any casino.