When certain symbols appear in a winning combination a special feature of the particular game theme is activated, which is a Bonus. Several items on the screen are presented to the player to choose. A number of credits is revealed and awarded to the player when items are chosen. There are bonuses that use a mechanical device, such as a spinning wheel. It is used in conjunction with the bonus for displaying 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.
A grouping of slot machines, usually in a circle or oval formation are called Carousel.
There is a container where the coins that are immediately available for payouts are held called Coin hopper. When a player collects credits this mechanical device rotates coins into the coin tray. 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 a visual display of the amount of money or credits on the machine.
Drop bucket or Drop box is a container located in a slot machine's base where excess coins are diverted from the hopper. It is generally used in low denomination slot machines. As for high denomination slot machines they use a drop box. A drop bucket doesn't contain a lid while a drop box contains a hinged lid with one or more locks. There is a scheduled basis on which the contents of drop buckets and drop boxes are collected and counted.
EGM is a short-hand for Electronic Gaming Machine.
To denote a payout made by a slot attendant or cage, rather than the slot machine the term Hand pay is used. 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. 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.
There is Hopper fill used to record the replenishments of the coin in the coin hopper after it becomes depleted as a result of making payouts to players. The are shown with the slip.
A stool is included into Low Level or Slant Top slot machines, so you can sit and play. Stand Up or Upright slot machines are played while standing.
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. Classic spinning reel machines usually have up to nine pay lines, while video slot machines may have as many as one hundred.
While the meters count up to the amount that has been won the process of dramatizing a win by playing sounds happens which is called Rollup.
Short pay refers to a partial payout made by a slot machine, which is less than the amount due to the player. If the coin hopper has been depleted as a result of making earlier payouts to players the short pay happens. In this case the remaining amount will be paid as a hand pay or an attendant will come and re-fill the machine.
The term Theoretical Hold Worksheet. Is used to denote a document provided by the manufacturer for all slot machines. Basing on adequate levels of coin-in it indicates the theoretical percentage that the slot machine should hold. 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.
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 is called Weight count.

Here is the list of the most amusing myths concerning 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.
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.
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.
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.
Once again, the computer determines a win or loss and the temperature of the machine or moneyirrelevant. Although it's funny that people still burn their fingers with lighters believing this works.
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.

United States
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. The only state that has no significant restrictions against slot machines is Nevada. In New Jersey slot machines are allowed only in hotel casinos operated in Atlantic City. 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.

Casinos: Native American
There are no slot machines 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. 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. 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. "Class III" (or "traditional") slot machines operate independently from a centralized computer system. The possibility that a player wing 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"). The determination of the outcome of each wager is fulfilled by it. 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. There are no tight regulations for Class II games.

Class II Game Characteristics
The players are playing against each other. There is a common prize for which they are competing. One player always wins the game. The game is continued until someone wins. A given set has a certain number of wins and losses. The combimation can occur again only after a new batch is initiated. The games depend on one another. The player must be an active participant. All players play from the same set of numbers as the numbers are announced.

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

Clubs Of Slot Players
There is free memberships in "slot clubs" in many casinos of America. A small fraction of the amount of money that is bet is returned in the form of comps. 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.

Australia
Queen of the Nile is very popular in Australia. The term Gaming Machines is officially used to denote Australian slot 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.
There are Gaming machines not only in casinos but also in pubs and clubs in some states. New South Wales legalized this style of gambling first. Their legalization in all registered clubs in the state was in 1956.
In Western Australia only particular forms of gaming machine are used.

The UK
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. Winnings are paid from the machine if certain combinations of fruit appear. These machines and slot machines seen in casinos and elsewhere around the world are very similar. But there are some extra features. The jackpots from these machines are limited. There are some features of fruit machines in the UK. There is an opportunity for a player to hold one or more reels before spinning. It sometimes increases the chance of winning. A player is also given a finite number nudges following a spin. The term nudge is used to denote 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. There are "club machines" in private members' clubs. They have higher jackpots and are allowed to charge more per game.
These machines also operate in a different manner to American slot machines. The probability of getting the jackpot in each game is independent of any other game.
The AWP fruit machine is popular across Europe and in countries such as the Czech Republic, Russia, and Ukraine.

Slots In Japan
Pachisuro are Japanese slot machines. They originate from 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.
IC chips regulate the machines. They have 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.