Modern casino Slots are controlled by computer software, and the win %s are pre-programmed into the computer software.

Casino slot machines have Random Number Generators that are constantly generating combinations, even when the game is not active.

Running concurrently with the random # generator of the casino one-armed bandit is the pay out percent.

The payout percent controls just how much the one-armed bandit will payout, for e.g. the payout per cent may be 90%, which means the slot game will payout ninety per cent of all the stakes played, and the casino simply gets to keep 10%.

This really does not mean that for every time you bet ten credits you will receive nine in return – where’s the fun … exhilaration in that? Instead, the casino slot will not pay out for a bit, and then suddenly fire up a hot streak and you might catch the big jackpot prize.

The payoff %s will most likely vary between the differing games and just a few of the highly acclaimed casinos, for instance Golden Online Casino, which hands out a payment of up to 95 per cent!

Thus, in essence, the slot machine takes all the money played into it and pays it out to several privileged winners. The casino only gets to keep a basically minute per cent of all the gambles made.

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

When you hit spin on the slot machine, a combination is formed by the RNG which associates with the pictures on the reel.