The wheel of roulette game is an extraordinary combination of engineering and logic and because of this the said game has been of utmost interest to the gamblers across the globe. Although on the face of it the same wheel of numbers seems to be a very simple design but arrangement of numbers and characteristics has been done in such a manner that ensures the random element of the game. Now it’s all luck, folks which comes to the ones' rescue.

The wheel is typically a bowl that is divided into separate compartments by slanted walls, which are sufficiently large to old the marble once it comes to rest after the spin. The colors of the compartments are different and colored alternately red and black, with the zero-pocket being green. If we take a close look at the roulette wheel, that circular bowl baffles so many system masters. At very first glimpse it seems simple enough, but just look intently at it for a while and one will notice the intricacy of its layout. But folks make no mistake; the modern roulette wheel is a mastered engineered piece of equipment.

When it comes to prediction of randomness of numbers the way numbers has been arranged on the wheel is the main factor for the same. This is what is being followed when a person is playing there at Las Vegas of any other casions around the world. But playing same thing online is a little different. Landing of a ball in an online roulette wheel is wholly dependent upon a piece of software named as Random Number Generator (RNG). The above mechanism is quite similar to an RNG chip found inside a slot machine. It is a simple programming technique. To put it simple words what the software does is that it generates thousands of random numbers each second, and those random numbers are extracted when some specified event occurs (it may be a roulette wheel being spun) and then mapped to an end result (the ball landing on number which has been extracted). The same is done through a set of rules that correspond to the odds for a game. This way one gets complete randomness and appropriate odds, exactly what is required for a proper and fair game.

Roulette is basically of two types. It is American or European (the same way we have American and European Options in stock Exchanges) but mind you the difference is not in the same way as it is in options. The difference is the fact that an American wheel has two zero pockets, one marked 0 and one marked 00. This difference represents a significant difference in the house edge between the two types of wheels. On a European roulette wheel the house edge is approx. 2.70% - much lower than the American wheel at 5.26%.