A special feature of the particular game theme, which is activated when certain symbols appear in a winning combination is called Bonus. In the bonus, the player is presented with several items on a screen from which to choose. After choosing items a number of credits is revealed and awarded. A mechanical device, such as a spinning wheel is used by some bonuses. To display the amount won it works in conjunction with the bonus.
There is a light on top of the slot machine called Candle. It alerts the operator that change is needed, hand pay is requested or there is a potential problem with the machine.
Slot machines in a circle or oval formation are usually called Carousel.
There is a container where the coins that are immediately available for payouts are held called Coin hopper. It is used to rotate coins into the coin tray when a player collects credits. A coin diverter is used to redirect 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.
Drop bucket or Drop box is used for diverting exess coins from the hopper. Typically, a drop bucket is used for low denomination slot machines. High denomination slot machines 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 exists a scheduled basis for collecting and counting the contents of drop buckets and drop boxes.
EGM is used as a short-hand for Electronic Gaming Machine.
The term Hand pay means 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. 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.
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 is Hopper fill. 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. Playing Stand Up or Upright slot machines you won't be able to sit.
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.
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.
If a partial payout made by a slot machine is less than the amount due to the player it is called Short pay. It can happen 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.
A document provided by the manufacturer for all slot machines is called Theoretical Hold Worksheet. 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.

As you know there are different types of slot machines. And do you know that there are even types of slot palyers.
Persistent player.
These players are sure that the machine is already ready to pay out, they just have to wait for a little. The machine can begin paying in any second.
The player will play until the machine pays out. He must have found a machine that haven’t paid for a long period of time or he has inserted to many coins and has got nothing. They believe that a big win is sure to happen right now. They can’t leave the machine because as soon as they do it will burst forth and pay out large sums. Makes sense if you have lost 0. 00 and have yet to win. The machine will pay any way.
Many years ago in the case of the payout players touch the coins to check whether he coins were hot or cold. If the coins were hot they believed that the machine had not paid for a long period of time. In fact the coins could be hot only because of the numerous lights that heated the coins.
The chaser.
The player believes the slot machine is not one of those machines that never pay. Players feel more comfortable and confident because they have been reinforced with a win and gain trust in the machine. A sense of comfort exists between the slot machine and the player.

It is true that slots are designed to be honest and not to deceive a player. What you can really doubt is the honesty of some manufactures.
The very first slot machines worked according to the following principle: the wheels spun and then each of them stopped randomly. Modern slots are much different. These machines contain computer chips that are programmed to select numbers randomly. After selecting a number a corresponding symbol appear on the screen. The computer code that generates the random numbers is responsible for whether the machine is “loose” or “tight,” so gaming inspectors look at the machine’s code to make sure that a slot machine doesn’t cheat. There is a legal rate according to which the machine has to pay out. Of course it can pay lower, which happen very seldom.
It is next to impossible to say whether the chip is programmed not in a right way because the machine is not supposed to pay out with every spin. Before the machines are installed in casinos they are examined by inspectors. But you must understand that inspectors can’t examine every machine. They examine the brands. Once inspectors approve a brand of machine, the manufacturers can make changes to individual machines as long as the changes fall within the legal bounds. Manufacturers can change chips to make a machine pay less as long as the inspectors have approved that particular chip.
In one of the casinos the chip was programmed in such a way that royal flushes would never come out. Similarly, Universal Distributing Company was caught programming machines to show a “near miss” of a jackpot. One the one hand the machine would never have a jackpot and the player would keep on playing. If you think that you have come across such a machine you have a right to complain. Inspectors will respond by pulling the slot machine’s chip and seeing if it is an approved chip. Manufacturers that cheat are fined or they can lose their license.