Modern casino Slots are controlled by a computer, and the winner percentages are pre-programmed into the computer software.
Casino one armed bandits have Random # Generators that are constantly generating combos, even when the slot machine is not currently being played.
Running collectively with the RNG of the casino slot machine is the pay out percent.
The pay out percentage controls just how much the slot machine will payout, for example the pay percent may be 90%, which means the slot machine will pay out ninety percent of all the stakes played, and the casino will then get to keep 10%.
This is not to say that each time you bet 10 credits you will receive nine in return – where is the fun and fascination in that? Instead, the casino one arm bandit won’t payout for a while, and then suddenly hit a hot streak and you might draw the big jackpot prize.
The pay off percentages shall vary between the differing games and several of the highly established casinos, for e.g Golden Online Casino, which hands out a payment of up to ninety-five percent!
So, in essence, the one-armed bandit takes all the $$$$$ played into it and pays it out to a couple of lucky winners. The casino only gets to keep a relatively small percent of all the gambles allotted.
The casino slot machine software controls every part of the machine, from the flashing lights to the rotating of the reels.
When you hit spin on the one-armed bandit, a combination is developed by the RNG which relates to the pictures on the reel.