Modern casino slot machines are controlled by a computer, and the win percentages are pre-programmed into the computer software.

Casino slot games have Random Number Generators which are eternally generating combos, even when the slot machine is not currently being played.

Running simultaneously with the RNG of the casino slot machine game is the pay out per cent.

The pay out percent controls just how much the slot machine game will payout, for eg the pay per cent could be ninety per cent, meaning the slot machine game will pay out 90% of all the wagers played, … the casino will then get to keep 10 per cent.

This is not to say that every time you bet 10 credits you will receive nine in return – where’s the fun and thrill in that? Instead, the casino slot will not payout for a bit, and then suddenly start up a hot streak and you might draw the big pot prize.

The pay off percentages will tend to vary between the various games and a couple of the notably famous casinos, for e.g Golden Online Casino, which puts forth a pay out rate of up to ninety-five percentage!

Thus, in essence, the one-armed bandit takes all the money played into it and pays it out to a number of lucky winners. The casino only gets to keep a basically petite per cent of all the odds made.

The casino one armed bandit software controls each and every part of the machine, from the flashing lights to the circulating of the reels.

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