The Random Number Generator (RNG) is the brains of the slot machine. While most players know that there is a computer chip picking the numbers, they do not fully understand how it works and this can lead to some of the many myths and misconceptions about a slot machine. One of the most common myths is that a machine has a cycle that can let a player know when it is due to hit. Many “Snake Oil Salesmen” will try to sell you a system for doing just that. Save your money — it can’t be done.

The RNG Program

Inside the slot machine is a microprocessor similar to the one in your home computer. Instead of running Word or Excel, it runs a special program, the RNG, that generates numbers to correspond to the symbols on the reel of the slot machine.

You might say that the RNG is in perpetual motion. As long as there is power to the machine it is constantly selecting random numbers every millisecond. The RNG generates a value between 0 and 4 billion (approx number) which is then translated into a specific set of numbers to correspond to the symbols on the reels. The outcome of each spin is determined by the number selected by the RNG. This number is chosen when you hit the spin button or deposit a coin.

The RNG uses a formula known as an algorithm which is a series of instructions for generating the numbers. The scope of this is beyond most of our mathematical knowledge but can be checked for accuracy. This is done by the Casino Control Board and other testing laboratories to make sure that the program performs as it should so the player will not be cheated.

The RWB Ping Pong Ball Game is just like a 95% payback slot machine. Even though the outcomes in both games are chosen completely at random, each pays back 95% of the money played in the long run. A slot machine works very much like the RWB Ping Pong Ball Game. Conceptually, there is a basket of ping pong balls for each reel. Slot machine outcomes are controlled by programs called pseudorandom number generators that produce baffling results by design. Government regulators, such as the Missouri Gaming Commission, vet the integrity of each algorithm before casinos can deploy it. On random number generators I'll leave you to read the rest of the article.

Principles of the Random Number Generator

Here is a more simplified explanation that's easier to relate to. Although this is not precisely how the RNG operates, it should give you a basic understanding of the principles of how the winning spins are determined.

Reel Type Slot Machines

Reel type slot machines have a number of spaces on each reel that contain a symbol or blank. These are referred to as the physical stops. Most of the old mechanical machines had reels that could hold 20 symbols while the modern slots have reels with 22 physical stops. The ​microprocessing technology allows the new machines to be able to accommodate a large number of “Virtual stops” which I will explain in a future article.

For this example, let’s simplify things and imagine that there are only 10 stops on each reel. With 10 stops there can be 1,000 different combinations. We get this number by multiplying the number of symbols on each reel. (10 x 10 x 10 = 1,000) The 1,000 combinations that can be attained are known as a cycle, and this is the word that sometimes confuses a player into thinking that the machine has cycles of winning and losing.

The odds of a three number combination being picked are one in a thousand. Theoretically, if you play 1,000 spins you should see each of these number combinations once. However, we all know that this is not the case. If you played a million spins you would see that the numbers would even out to be closer to the actual probability. This is similar to flipping a coin 100 times. Although the odds are 50 -50 you are unlikely to see 50 heads and 50 tails after 100 spins.

Name Slot Machine

The Daily Pick 3 Lottery

Many of you have seen the Daily Pick 3 lottery drawing. They have three glass bowls or drums each containing ten balls numbered 0 -9. The balls are mixed up and when the top is lifted a ball pops up the tube showing you the first number. This is repeated for the second and third number to give you a three-digit winning combination.

Random Number Generator Slot Machine

To use this as an example of the operation of the slot machine, we will replace the numbers 0-9 on the balls with slot symbols. In each bowl, we will have one ball with the jackpot symbol on it. Two balls with a Bar, three balls with a cherry and four balls which are blank. Imagine the RNG in the slot machine as the person drawing the winning combination.

Here is the breakdown of the number of times out of a thousand that the winning combination made.

• 3 Jackpot 1 (1x1x1)
• 3 Bars 8 (2x2x2)
• 3 Cherries 27 (3x3x3)
• Total Wins 37

The 963 losing combinations consist of:

• 3 blanks
• 2 blanks and a symbol
• 1 blank and two different symbols
• 3 mixed symbols

The RNG picks these combinations of numbers thousands of times each second. Now imagine a string of blinking lights where only one bulb can be lit at a time. The electrical current is zipping from bulb to bulb down the string. When you push a button the current stops moving and the bulb in that position lights up. In this example, the light represents the three digit number just picked by the RNG. If you hesitated a second before pushing the button the results would be different. This is the same as you getting up from a machine and seeing someone else sit down and hit the jackpot. The chances are astronomical that you would have hit the spin button at the exact same millisecond.

Slot machines are truly random and in any casino land-based or online, slots are the most favoured, even though most players do not completely understand how they function. There is a general misconception of how slots work and once you understand the inner operations of slots they can be even more fun, extremely profitable and provide hours of enthralling play.

Slot machines are truly random and use a random number generator, the first slot generation was mechanical, think back to coin-operated slots and even those utilised a random number generator most referred to as RNG, to determine the outcomes of the game.

Random Number Generator Slot Machine

Beating Random Number Generator Slot Machines

As a matter of fact, the randomization process is completely separated from the slot or game and supply the game with the random numbers which the game expresses in a specific format be it slot symbols, poker cards or even keno numbers. Casinos have the match working to their advantage, this is why they seriously don’t need to rig the game. If players enjoy slots at a well-regulated online casino they can be certain that all software is regularly tested, which means the game had to pass rigorous testing before the software are certified as random and fair.

Random Number Generator Used In Slot Machines