Modern casino one armed bandits are controlled by computer software, and the winning %s are preprogrammed into the game software.
Casino slot machine games have Random Number Generators which are ceaselessly generating combinations, even when the machine is not active.
Running simultaneously with the Random Number Generator of the casino slot machine game is the payout percentage.
The pay out percentage controls how much the slot machine game will pay, for eg the payout percentage could be ninety per cent, which means the slot machine game will payout 90% of all the stakes played, and the casino gets to keep ten percent.
This really does not mean that every time you bet ten credits you will receive nine in return – where is the fun … exhilaration in that? Instead, the casino slot machine won’t pay out for a bit, and then suddenly hit a hot streak and you might draw the big grand prize.
The pay off percentages shall vary between the a variety of games and a couple of the notably popular casinos, for example Golden Online Casino, which provides a pay out of up to 95 percent!
Hence, in essence, the slot machine takes all the currency played into it and pays it out to a few lucky winners. The casino only gets to keep a relatively small percent of all the odds put out.
The casino slot software controls any part of the machine, from the blinking lights to the rolling of the reels.
When you hit spin on the slot machine, a combination is produced by the RNG which relates to the pictures on the reel.