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Many gambling enthusiasts in the United States are at least vaguely familiar with the Indian Gaming Regulatory Act, US law Pub.L. 100–497, 25 U.S.C. § 2701.
Passed in 1988, this federal law established how Indian (Native American) gaming would be managed and regulated. The act included definitions for 3 types or classes of gambling games. They are usually referred to as:
- Class I games
- Class II games
- Class III games
Congress passed the law to help Native American tribes and nations improve their economic status after more than a century of oppression and exclusion in mainstream US society. Many Native American groups wanted to build land-based casinos, which would not only attract tourists but create jobs.
There was considerable resistance to this movement in many states, most of which did not allow gambling of any kind. To help resolve the conflicts and provide some clarity between treaties, state law, and federal law, the US government established a framework that eliminated some barriers to Native American investment in gambling industries. The law also provided some regulatory limits to respect state laws.
The Indian Gaming Regulatory Act introduced some confusion into the worldwide lexicon of gambling games because the distinctions are only observed within US jurisdictions. Other nations regulate gambling with different definitions.
But as the internet became a worldwide communications network in the 1990s and 2000s, most of the content published about gambling dealt with US law and casinos. Although non-US casinos have to observe their own laws and regulations, players who research gambling law on the internet must be careful to distinguish between USA gambling definitions and other gambling definitions.
What Are the 3 Classes of Gambling Games?
Class I gambling includes all traditional Native American gambling games, most of which are only used for ceremonial purposes or in the contexts of cultural-specific celebrations and ceremonies. These games, which are only available at small stakes, are completely regulated by the Native American tribes and nations.
Class II gambling includes all variations of bingo games, player-vs-player card games like poker (where the house does not play a hand in the game), tip jars, pull-tab games, punch card games, and anything similar. Some people mistakenly include lottery games in this category, but the law clearly excludes state-run lotteries and similar games from Class II.
Class III gambling consists of everything that is not included under Class I gambling or Class II gambling. That means the lottery games you play are Class III gambling games. Slot games, roulette, dice games, and card games like blackjack where the house is also a player all fall under the Class III gambling games category.
So How Can There Be Class II Slot Machine Games?
If you’ve ever visited a Native American casino–like the Winstar Casino in Oklahoma, you’ve almost certainly played some Class II slot machine games. They look much like traditional slot machine games. They have 3 to 5reels with symbols on them, they pay jackpots, and they do everything else you expect of a slot game.
And yet, they are not slot machine games.
A clever company in Franklin, TN, known as Video Gaming Technologies, or VGT, developed electronic bingo games for Native American casinos that use the results of those bingo games to emulate slot game action.
In other words, the slot machine cabinets contain two screens, one that displays the results of the bingo game and one that displays the results of the simulated slot game. This dual visualization of the gambling game takes advantage of the fact that at the core of all gambling games is a simple principle:
You’re making a wager on an unknown outcome. What the Class II slot games do is take the result of the bingo game to determine what happens in the slot game.
What’s cool about this approach is that VGT was able to add bonus games to the bingo games that work like slot machine bonus games. They’ve developed a huge selection of bingo games that play like slot games. VGT is so successful they were acquired by Aristocrat Leisure Limited in 2014, although the former VGT still operates as an independent subsidiary company of Aristocrat.
How Do Class III Slot Machine Games Work?
The key to the hybridization of bingo and slot machine games is the Random Number Generator. Mathematicians have been developing algorithms to calculate unpredictable numbers for hundreds of years. For a detailed look at the concept, read “How Do Random Number Generators Work?” on Jackpots Online. Although the RNG does not produce a truly random number, in typical circumstances the number is random enough. Even so, slot game designers use random numbers in multiple ways.
Before I continue, I should mention that US law requires slot game designers to work by different rules from other countries’ slot games. In the United Kingdom, for example, the outcome of a slot game is determined by a single random number. In the United States, the outcome of the Class III slot game is determined by several random numbers.
To begin with, an electronic slot machine or online slot game uses a software concept called an array to represent each reel. Computer arrays work like rows of boxes, where each box holds one piece of information. The arrays for slot reels may have anywhere from 22 to 256 slots. Each slot in the array holds a symbol marker that tells the slot machine game what to display on the screen.
Slot game designers use special algorithms to decide how often each type of symbol should appear in each slot array. The frequency of the symbol’s use in the array and the size of the array determine how likely or unlikely it is for any single spin of the slot game reels to create one or more winning combinations. The game’s software may award prizes for one or more winning combinations at a time, depending on how many pay lines the game offers.
The random number generator produces a new number every few milliseconds. The number is placed in a temporary memory location called a register. The slot game software grabs the latest random number from the register and uses that to determine what happens next. For example, a 5 reel slot game needs 5 random numbers to pick how many slot positions will be spun on each reel before the reels stop in new locations. If the slot game awards random prizes like progressive jackpots, these are determined by additional random numbers.
How Class II Slot Machine Games Differ from Class III Slot Machine Games
What VGT did was create bingo game software that determines the actual prizes awarded to players.
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But to make the bingo games look like slot games, they used the bingo game’s random results as if they are the random numbers that Class III slot games use.
To ensure that the slot game winning combinations match the bingo game prize values the VGT games work more like slot games in the United Kingdom. The game determines what prize was won and then creates a short video simulation of the slots landing on that winning combination.
Conclusion
How do class II slot machines work?
Either way, the slot games award prizes on a random basis. You could say that US gaming laws are paranoid in that Class III slot game software is required to closely emulate the physical spinning of slot reels. In fact, physical slot reel games have been displaying results of these virtual, in-memory array games for more than 20 years. So even when you see physical reels spinning, their stop positions have already been determined within microseconds of your pressing SPIN.
The Class II slot gaming experience is a fun gaming experience.
But the bingo game is displayed on a small screen, because VGT’s designers have found that players don’t enjoy looking at bingo patterns as much as they enjoy looking at 3 to 5 reels spinning and stopping on various symbols.
For the player, what matters is that they’re gambling for real money on an unpredictable outcome–and they can enjoy an entertaining evening with friends or loved ones.
Introduction to Why Slot Machines Say Bar
Why do slot machines say bar on their reels? Well, to understand why this tradition came to be, we’ll have to delve into slot machine history. First of all, these gambling devices weren’t always called slot machines. Slot machines were originally referred to as a one-armed bandit, then later in Great Britain as a fruit machine.
A slot machine gambling device is activated by pulling a handle or pushing a button. This can only be done after coins, tokens, cash, or casino credits has been entered. Consequently, reels with symbols begin to spin. When done spinning, the symbols shown lined up along pay lines are used to determine the payout, if any.
Reel symbols are often traditional, including stars, bars, numbers, and various pictured fruits. Fruits can include cherries, plums, oranges, lemons, and watermelons. The number seven is also very popular. And, finally, then there are bar reel symbols.
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Bar Reel Symbols
Fruit reel symbols were first used in slot machine by the Industry Novelty Company in 1909. This was quickly followed the next year by Mills Novelty Company of Chicago, recently inherited by Herbert Stephen Mills. But, with a slight addition.
Mills added the photograph of a chewing gum pack along with the fruit reel symbols. Soon after, these photographs of a chewing gum pack were replaced with a stylized bar symbol.
Slot machines have a very rich history. Within gaming device circles of the time, it was well known that Charles Augustus Fey of San Francisco refused to sell or lease the design of his first coin-operated slot machine, the Liberty Bell, which he invented around 1887.
So, how did Mills get the design from Fey? There are two theories. First, that Fey cooperated with Mills to spread the use of slot machines. After all, Fey is known as the “Father of Slots” both for his invention of the coin-operated device as well as popularizing its use.
The second theory is Mills somehow “obtained” a Liberty Bell as a result of a San Francisco saloon robbery in 1905. Less than a year later, Mills produced a new version of the Liberty Bell called either the Mills Liberty Bell or Operator Bell.
During my review of the history of early slot machines, there are also suggestions the bar symbol may have another origin story. It is generally accepted that the bar symbol is a stylized image of a chewing gum pack, as well as a company logo.
According to some historical sources, however, the company having that logo may have been the Bell-Gum Fruit company.
A Bit More History
As mentioned, slot machines have a very rich history, especially in their early days. Besides Why Do Slot Machines Say Bar, there are a few other interesting historical items of interest.
In 1916, another historic slot machine innovation created by the Mills Novelty Company was the jackpot. When a specific combination of reel symbols resulted from a bet, the slot machine would empty its coin hopper of all coins as a prize.
The Mills Novelty would later go on to produce slot machines with wooden cabinets, rather than the original cast iron construction materials.
Photos of early slot machines are online at Cyprus Casino Consultant, Casino Observer, the International Arcade Museum, and elsewhere. I especially enjoy photos of antique slot machines in my copy of Slot Machines: A Pictorial History of the First 100 Years by Marshall Fey, grandson of “the Father of Slot Machines” Charles Fey.
The Cyprus Casino Consultant website shows 4 slot machines on a waist-high counter top. They appear to have wood cabinets and are each perhaps 30 inches high by 18 inches wide. In metric, that’s about 76 centimeters by 46 centimeters.
Each slot machine is of the one-armed bandit variety, meaning they appear to are activated by first inserting a coin and then pulling a large lever on the right side of the machine. Each of these models appears to accept coins at the top, as well as dispense coins for winners at the bottom.
The Casino Observer website also shows 4 slot machines. Two of these machines are some of the first slot machines, from about 1890, while two others are more modern, ~1940s. The two older slot machines receive coins, but only the poker machine appears to not be able to dispense coins. This poker machine has typical card suits as reel symbols and a cast metal-type cabinet.
It appears to be missing its one-armed bandit lever, perhaps due to damage, or it never had a lever. One older slot machine with coin dispenser capability is clearly identified as a “Liberty Bell”. It rests on cast feet located on each corner. The reel symbols show three Liberty Bells, but its “pay table” shows card suits – not fruit or bars.
The International Arcade Museum website shows a single slot machine. It’s a very old slot machine showing the symbol of the Liberty Bell on its front next to three reels showing Liberty Bell, bar, and fruit reel symbols.
This is probably a “Liberty Bell” by Charles Fey, but must be a slightly later version due to it having obvious fruit and bar reel symbols. It also has a cast metal-type cabinet and the distinctive “feet” of a Liberty Bell. It also has a small tray for coins, suggesting it has automatic payouts.
Charles Fey manufactured about 100 Liberty Bell slot machines for distribution in and around San Francisco. However, there are few of them remaining in existence. The scarcity of Fey’s Liberty Bell is a direct result of a natural disaster occurring shortly after their manufacture: the 1906 San Francisco Earthquake.
Summary of Why Slot Machines Say Bar
Starting in 1907, Bell Fruit Gum slot machines were manufactured by Industry Novelty Co. They were followed by the Mills Novelty Company in 1910.
The reels on these slot machines included cherry, melon, orange, apple, and bar symbols with non-cash payouts in the form of fruit-flavored gum, allowing machine owners to avoid prosecution under the anti-gambling laws of that time.
The cherry and bar symbols became traditional to slot machines, and are still commonly used today. The bar symbol was a company logo, originally a photo of a chewing gum pack before being stylized as a bar.
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