Modern casino Slots are controlled by computer chips and software, and the winner percentages are pre-programmed into the computer software.

Casino slot machines have RNGs that are endlessly generating combinations, even when the slot machine game is not being played.

Running concurrently with the random # generator of the casino slot machine is the payout rate percent.

The payout percentage controls how much the one-armed bandit will pay out, for e.g. the payout percent might be 90%, which means the slot machine will pay ninety per cent of all the bets played, and the casino simply gets to keep 10 per cent.

This does not mean that each time you bet 10 credits you will receive nine in return – where is the fun and exhilaration in that? Instead, the casino slot won’t payout for a bit, and then suddenly hit a hot streak and you might hit a big jackpot prize.

The profit %s will vary between the a variety of games and several of the most common casinos, for e.g Golden Online Casino, which hands out a payout rate of up to 95 %!

This means that, in essence, the one-armed bandit takes all the funds played into it and pays it out to some lucky winners. The casino only gets to keep a relatively indistinct percentage of all the stakes allotted.

The casino slot software controls any part of the machine, from the flickering lights to the turning of the reels.

When you hit spin on the slot machine, a combination is generated by the RNG which relates to the pictures on the reel.