When certain symbols appear in a winning combination a special feature of the particular game theme is activated, which is a 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. It is used in conjunction with the bonus for displaying the amount won.
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.
The term carousel is used to denote a grouping of slot machines, usually in a circle or oval formation.
Coin hopper is a container where the coins that are immediately available for payouts are held. It 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.
Drop bucket or Drop box is a container located in a slot machine's base where excess coins are diverted from the hopper. Typically, a drop bucket is used for low denomination slot machines. And a drop box is used for 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 is a scheduled basis on which the contents of drop buckets and drop boxes are collected and counted.
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 can also be 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. 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.
Playing Low Level or Slant Top slot machines you can sit as they have a stool. Stand Up or Upright slot machines are played while standing.
The term Optimal play is used to denote 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. There are up to nine pay lines in classic spinning reel machines while there can be one hundred pay lines in video slot machines.
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. This occurs if the coin hopper has been depleted as a result of making earlier payouts to players. Then the remaining amount is paid as a hand pay or the machine is re-filled by an attendant.
A document provided by the manufacturer for all slot machines is called Theoretical Hold Worksheet. 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.

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. 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.
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.
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.

Knowing the rules is of great importance when playing any casino game. Slots are the easiest casino games. The rules are very simple. The player has to insert coins in the slot machine, then push the button or pull the handle and wait for the combination of symbols. If you hear bells ringing and see lights flashing it means that you win. Of course you can win much, but never bet or spend more than you can afford.
Rules for playing Slots
The rules for slots are one of the simplest set of rules for any casino game. In fact it is so because there are no rules at all. All the player has to do is drop coins in the slot and pull the handle or push the spin button. The main objective is to match certain symbols on the paylines. But the player can do nothing to affect this. Slots machines have different betting limits. They can be as low as 5 cents and as high as 0.
It is a popular game for beginners because it is just them against the machine. They don't have to worry about rules and regulations, or being laughed at by the other players for making a bad play, all they have to do is try to hit the jackpot by matching the highest paying symbols on one of the pay lines.

The US
In the United States the availability of slot machines is highly regulated by state governments. There are a lot of states that 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. In New Jersey only hotel casinos operated in Atlantic City are allowed to have slot machines. Several states allow slot machines only on licensed riverboats or permanently-anchored barges. Only three horse tracks are allowed to have slot machines in Delaware. They are regulated by the state lottery commission.

Casinos: Native American
There are no slot machines in Native American casinos located in reservations. It is permitted 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 is created to govern slot machines. There are different classifications of them. Some states have restrictions on the type of slot machines that can be used in a casino or other gaming area. A centralized computer system operates "Class III" (or "traditional") slot machines. Every play has equal chances of winning any payout. You can find Class III slots in Nevada or Atlantic City more frequently. They are also called "Vegas-style slots".
"Class II" slot machines ("video lottery terminals" or "VLTs") are connected to a centralized computer system. The outcome of each wager is determined 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. The regulations for Class II games are not so tight.

Class II Game Characteristics
The player is playing not against the casino but against other players. Their competition is for a common prize. One player always wins the game. The game is continued until someone wins. In a given set there is a certain number of wins and losses. Once a certain combination has occurred it cannot occur again until a new batch is initiated. The games depend on one another. The player must be an active participant. There is the same set of numbers for all players.

Class III Game Characteristics
The player is playing against the house. There is no connection between the previous and the next games. There can be any possible outcome in any game.

Slot Clubs
In American casinos there are "slot clubs" the membership of wich is free. 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 can make significant differences in the maximum theoretical returns.

Australia
Queen of the Nile is a poker machine that is very popular in Australia. Slot machines in Australia are officially termed Gaming Machines. Australian-style gaming machines have video displays for stimulating physical reels. There are usually five of them. 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. The year of 1956 was the year of their legalization in all registered clubs in the state.
In Western Australia only particular forms of gaming machine are used.

Slots In The United Kingdom
Fruit machines, one-armed bandits and AWP are the names for slot machines in Britain. Fruit machines can be met in pubs, clubs, arcades, and some take-away food shops. 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. These games have lots of extra features. The jackpots from these machines are limited. There are some features of fruit machines in the UK. A player may be given the opportunity to 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 single-step rotation of a reel of the player's choice is a called a nudge.
The type and the location of the machine influences the maximum payout for an individual game. Private members' clubs are allowed "club machines". They have higher jackpots and are allowed to charge more per game.
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.

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

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! According to the main slot classification there are two types of slots. They are straight slots and progressive slots. If you play slots then you are paid in accordance with the payout schedule, which is always shown on the slot. Straight slots in their turn can be divided into multiplier, bonus multiplier, multiple payline and buy-a-pay slots. The bet amount determines the sum of the payout in multiplier slots. The main principle of bonus multiplier slots is a bonus round, which becomes active if you play with 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. The jackpot for Progressive slots is never the same as it grows higher with every coin put in the machine. The amount of the Progressive jackpot is always shown on the slot.