Bonus is a special feature of the particular game theme, which is activated when certain symbols appear in a winning combination. In the bonus, the player is presented with several items on a screen from which 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. The amount won is displayed with the help of it in conjunction with the bonus.
Candle is a light on top of the slot machine. 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 contains the coins that are immediately available for payouts. When a player collects credits this mechanical device rotates coins into the coin tray. A coin diverter automatically redirects excess coins into a drop bucket, or drop box when a certain preset coin capacity is reached.
Credit meter is a visual display of 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. A drop bucket can usually be found in low denomination slot machines. As for high denomination slot machines they 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 contents of drop buckets and drop boxes are collected and counted by the casino on a scheduled basis.
EGM is used as 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. The maximum amount is set at the level where the operator must begin to deduct taxes. A hand pay can also be 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. 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 include a stool so you can sit and play. Playing Stand Up or Upright slot machines you won't be able to sit.
A payback percentage based on a gambler using the optimal strategy in a skill-based slot machine game is called Optimal play.
The term Payline is used to denote 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.
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. In this case the remaining amount will be paid as a hand pay or an attendant will come and re-fill the machine.
A document provided by the manufacturer for all slot machines is called Theoretical Hold Worksheet. 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.
If this were true, it would be the only machines anyone would play. A casino mixes slots all over the casino floor. No one with any experience at playing slots would make a statement like this.
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.
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.
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.
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.
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. 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? The most commonly accepted signal is to hang a coin cup over the handle of the slot machine. Placing the coin cup on the seat means the same. If you play in the casino that uses a cashless system you can just leave the jacket or one of your belongings on the seat. 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. If you find a card left by the previous player the second etiquette rule has to be applied. 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. Nowadays most casinos allow smoking while playing. Of course, others will hardly like it, so try to make as few inconveniences as possible. Tipping the attendant that brings you the winning is one more etiquette rule. There are a lot of questions about the sum of a tip. For jackpots that require a hand payout, the customary tip is one half of one percent of the jackpot.

United States
The United States state governments regulate the availability of slot machines. 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. There are states that allow slot machines only on licensed riverboats or permanently-anchored barges. Only three horse tracks are allowed to have slot machines in Delaware. State lottery commission exists for their regulating.

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. Typically, a pact entitles the state to receive a fraction of the gross revenue from slot machines.

Classes Of Slots
No federal law governs slot machines. There is no universal classification for all states. There are restrictions on the type of slot machines that can be used in a casino or other gaming area in some states. The operation of "Class III" (or "traditional") slot machines is fulfilled from a centralized computer system. A player's chance of winning any payout is the same with every play. Class III slots are most often seen in Nevada or Atlantic City. "Vegas-style slots" is another name for them.
There are "Class II" slot machines ("video lottery terminals" or "VLTs") which are connected to a centralized computer system. It determines the outcome of each wager. Each machine has an equal chance of winning a series of limited prizes. A fee for each Class III game is paid by the casino to the state. There are no tight regulations for Class II games.

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 stops when the winner appears. 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. There is a dependence of between the games. The player is an active participant of the game. There is the same set of numbers for all players.

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

Slot Clubs
Free memberships in "slot clubs" is offered by many American casinos. 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. 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
One of the most popular Australian poker machine games is Queen of the Nile. Gaming Machines is an official name for Australian slot machines. In Australian-style gaming machines video displays are used to simulate physical reels. There are usually five of them. The use of gaming machines in Australia is regulated by the laws.
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.
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. There are fruit machines 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 should be 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. Fruit machines in the UK also almost universally have the following features. A player may be given the opportunity to hold one or more reels before spinning. The chance of winning can sometimes be increased. A player is also 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". Their jackpots are higher and they 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 played in Europe and in countries such as the Czech Republic, Russia, and Ukraine.

Slots In Japan
Japanese slot machines are known as pachisuro. The traditional Japanese pachinko game is their ancestor. Slot machines have appeared recently. There are slot machines in pachinko parlors and the adult sections of amusement arcades, known as game centers.
The machines are regulated with 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.

Meet the man who beat the slots.
Slot machines pay on a random basis, but what if you could improve the payout a little? Would you do it? Tommy Glenn Carmichael would and did.
Tommy is now 53 and he can be said to have spent all his life inventing different devices to cheat slot machines. His first invention worked, but not for a long period of time as he was sentenced to prison for using it. Upon his release, he continued to work on the problem and to devise a better way to cheat the new 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.
When the slots were computerized he needed a new tool. Tommy found a manufacture who showed him the inside of a slot machine. It was enough for Tommy. 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. With all this money he bought expensive cars, houses and what not.
But good thing will end one day. 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 that time the police already have all necessary clues to prove that Tommy was guilty. He got three years’ probation and lost everything that he had bought before. He has been banned from entering any casino.