Etymologically, Roulette has come from a French word that means little wheel. The game is simple. The player needs to correctly predict a number on the wheel. The wheel is rolled and if the ball settles on the predicted number, the player wins.
The roulette board has 37 or 38 numbers depending on its variations. Some play it with just numbers, colours or a combination of colours and numbers. It can only be assumed that the wagers one places win, purely a game of chance. It doesn’t require any special skills to play. However, James Bond always won by placing his bets on number 7.