A special feature of the particular game theme activated when certain symbols appear in a winning combination is 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. A mechanical device, such as a spinning wheel is used by some bonuses. The amount won is displayed with the help of it in conjunction with the bonus.
There is a light on top of the slot machine called Candle. When change is needed, hand pay is requested or a potential problem with the machine appears it flashes.
Slot machines in a circle or oval formation are usually called Carousel.
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. When a certain preset coin capacity is reached, a coin diverter automatically redirects excess coins into a drop bucket, or drop box.
Credit meter is used for displaying the amount of money or credits on the machine.
A a container located in a slot machine's base where excess coins are diverted from the hopper is Drop bucket or Drop box. Typically, a drop bucket is used for low denomination slot machines. And a drop box is used for high denomination slot machines. 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.
EMG is Electronic Gaming Machine.
Hand pay refers to a payout made by a slot attendant or cage, rather than the slot machine. When the amount of the payout exceeds the maximum amount that was preset by the slot machine's operator a hand pay occurs. At the level where the operator must begin to deduct taxes the maximum amount is set. A hand pay could also be necessary as a result of a short 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 exists to indicate 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 can only stand playing Stand Up or Upright slot machines.
Optimal play is a payback percentage based on a gambler using the optimal strategy in a skill-based slot machine game.
A straight or zigzagged line that crosses through one symbol on each reel, along which a winning combination is evaluated is called Payline. Up to nine pay lines are contained by classic spinning reel machines and video slot machines contain up to a hundred ones.
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. This occurs if the coin hopper has been depleted as a result of making earlier payouts to players. The remaining amount due to the player is either paid as a hand pay or an attendant will come and re-fill the machine.
Theoretical Hold Worksheet is 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 one can say that theslot machine is a winning one is only to catch this moment, when the machine pays out. RNG is the main element of every slot machine and one never knows what combination it will form.
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.
This is mathematically impossible, remember the RNG (random number generator) determines the stops. Thereare literally millions of combinations on a 3 reel slot machine, so there is no way of determining odds by the symbols on the reels alone.
Casinos can tighten or loosen slot machines from the back office.
In order to change how a slot willpay out is by changing the computer chip. No casino can just flip a switch.
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.
Again false. It makes no difference, as the computer only uses these as mechanisms to start the game. Only the computer determines a win or a loss and it has already determined if you are a winner or loser even before the first reel stops spinning.
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. Though slots are played by one person, still thinks which can and can’t be done during playing slots. To decide whether to deal or not to deal with this slot machine is of great importance. Imagine you leave the slot and go to the bar or to the restroom and you want to come back in a few minute and continue playing. How can you let other people know that the slot machine is in play? To do it you have to hang a coin cup over the handle of the slot machine. Another signal is to place the coin cup on the seat. In casinos that use a cashless system, a personal item such as a jacket can be placed on the seat instead. In your turn if you see somebody’s belongings or a coin cup never sit to this slot machine. You can sit to any other slot machine. The second etiquette rule concerns the card left by the previous player. Sometimes you can find in the slot machine a card left by the previous player. If you face a situation like this you have to put the card on the top of the slot machine where it can be easily seen and found. 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. Tipping is another difficult issue for many slot players, and many people are unsure how much to tip the attendant that brings the winnings. In the case of a jackpot tip him with 0,5% of your jackpot.

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

Casinos: Native American
Slot machines are forbidden in Native American casinos located in reservations. It becomes possible when the tribe first reaches a pact with the state in which it is located. Typically, a pact entitles the state to receive a fraction of the gross revenue from slot machines.

Classes Of Slot Machines
No federal law governs slot machines. Their classifications may vary from state to state. Some states have restrictions on the type of slot machines that can be used in a casino or other gaming area. The operation of "Class III" (or "traditional") slot machines is fulfilled from a centralized computer system. The chance of winning any payout is the same with every play. Nevada or Atlantic City have more Class III slots than any other state. The term "Vegas-style slots" is iften used to denote them.
There is a connection between "Class II" slot machines ("video lottery terminals" or "VLTs") and a centralized computer system. 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 against other players. There is a common prize for which they are competing. One player always wins the game. The game stops when the winner appears. There is a certain number of wins and losses in a given set of wins. Once a certain combination has occurred it cannot occur again until a new batch is initiated. One game is dependent on previous games. The player must be an active participant. The announced numbers belong to the same set of numbers for all players.

Characteristics Of Class III Games
The opponents are the player and the house. Each game is independent of previous games. There can be any possible outcome in any game.

Clubs Of Slot Players
There is free memberships in "slot clubs" in many casinos of America. Complimentary food, drinks, hotel rooms, or merchandise are called comps and this is the way a small fraction of the amount of money that is bet is returned to the players. The requirement of such clubs is the usage of cards for the slot machines. Comps or "cash back" from these clubs makes significant differences in the maximum theoretical returns.

Australia
Queen of the Nile (manufactured by Aristocrat) is one of the most popular Australian poker machine games. The term Gaming Machines is officially used to denote Australian slot machines. Physical reels are stimulated by video displays in Australian-style gaming machines. There are five of them in most cases. The laws regulating the use of gaming machines in Australia are a matter for State governments.
Gaming machines are found in casinos as well as pubs and clubs in some states. The first Australian state to legalize this style of gambling was New South Wales. Their legalization in all registered clubs in the state was in 1956.
The usage of particular forms of gaming machine is allowed in Western Australia.

The UK
In Britain slot machines are known as fruit machines, one-armed bandits and AWP. 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 should be spun. The machine pays winnings if certain combinations of fruit appear. These machines and slot machines seen in casinos and elsewhere around the world are very similar. But some extra features can be found. There exists a strict jackpot limit. Fruit machines in the UK also almost universally have the following features. A player can hold one or more reels before spinning. The chance of winning can sometimes be increased. A player may also be given a finite number nudges following a spin. 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. There are "club machines" in private members' clubs. They have higher jackpots and are allowed to charge more per game.
These machines and American slot machines operate differently. The jackpot can be won in each game independently.
The AWP fruit machine is played in Europe and in countries such as the Czech Republic, Russia, and Ukraine.

Japanese Slots
The term pachisuro is used to denote Japanese slot machines. They are a descendant of the traditional Japanese pachinko game. Slot machines are a fairly new phenomenon. Pachinko parlors and the adult sections of amusement arcades, known as game centers have them.
The machines are regulated with IC chips. They have six different levels changing the odds of a "777". Despite the many varieties of the machines, there are certain rules and regulations.

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. Then he was released, but continued to work at inventing devices for cheating a slot. His next invention was a slider, a guitar wire. He inserted it into the machine, which released coins form the hopper.
Later, as slot machines became computer based, he had to invent a new tool. 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. He sold these wands and could earn up to ,000 a day. He drove expensive cars, took cruises, and bought two houses.
Eventually, all good things come to an end. For Carmichael, they ended in front of a slot machine at Circus, where he was caught with the light wand when he tried to run from security. 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.