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

Casino slot games have Random # Generators which are eternally generating combinations, even when the slot machine is not active.

Running side by side with the RNG of the casino slot machine game is the pay out percentage.

The pay out percentage controls just how much the slot machine game will pay, for example the pay per cent could be 90%, meaning the slot machine will payout 90% of all the stakes played, and the casino gets to keep 10%.

This really does not mean that each time you bet 10 credits you will receive nine in return – where is the fun … thrill in that? Instead, the casino one arm bandit won’t pay out for a bit, and then suddenly go on a hot streak and you might catch the big top prize.

The profit percentages usually will vary between the different games and several of the most established casinos, for e.g Golden Online Casino, which gives a pay out of up to 95 %!

This means that, in essence, the one-armed bandit takes all the dough played into it and pays it out to a number of privileged winners. The casino only gets to keep a basically small % of all the wagers allocated.

The casino slot software controls each 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 is linked to the pictures on the reel.