Roulette and blackjack is an exciting game to play.  There is a great deal of excitement and expectation as the ball, spinning in the opposite direction of the wheel, slows down and drops into a slot, which determines the winning outcome.  The expensive roulette wheel is supposed to be finely balanced so as not to introduce any bias.  This results in a fair game. A fair game is one in which each number has the same probability of being selected as any other number. There is no way to predict the outcome. 

People sitting in the casino watching the croupier spin the wheel feel safe in that they are not being cheated because they can see the spin of the wheel and watch the ball drop into a slot.  People playing online roulette and blackjack sometimes have questions about the software. The online software is simulating the randomness of the outcome through the use of random number generation software.  Players sometimes want to know how they know that the online version is a fair game. Most online casino websites have a page that shows their odds and payouts which the players can check. Most of the more respectable online casino belong to some outside licensing organization like eCOGRA and submit to regular audits by well known international accounting firms.  The online player can always check these facts out. He can also learn about the different software from the different major software companies. Players want to insure that they are playing at a reputable online casino and blackjack.