Modern casino Slots are controlled by computer chips and software, and the winner percentages are pre-programmed into the software.
Casino slot games have Random # Generators which are continuously generating combinations, even when the slot machine game is not currently being played.
Running synchronously with the RNG of the casino slot machine game is the payout percentage.
The pay out percent controls how much the slot machine game will pay, for example the pay % could be 90%, which means the slot game will pay out ninety percent of all the wagers played, and the casino gets to keep 10%.
This is not to say that every time you bet ten credits you will receive nine in return – where is the fun and fascination in that? Instead, the casino slot just won’t payout for a while, and then suddenly hit a hot streak and you might catch the big jackpot.
The payoff %s usually will vary between the different games and just a few of the extremely acclaimed casinos, e.g. Golden Online Casino, which hands out a pay out rate of up to ninety five percent!
Therefore, in essence, the one-armed bandit takes all the $$$$$ played into it and pays it out to a few lucky winners. The casino only gets to keep a fairly low % of all the plays put out.
The casino slot machine software controls each part of the machine, from the blinking lights to the spinning of the reels.
When you hit spin on the slot machine game, a combination is set up by the RNG which associates with the pictures on the reel.