Modern casino one armed bandits are controlled by computer chips and software, and the win percentages are pre-programmed into the gaming software.

Casino Slots have Random Number Generators that are continually generating combos, even when the slot machine game is not active.

Running in unison with the random # generator of the casino slot machine is the payout rate percentage.

The pay out per cent controls how much the one-armed bandit will pay out, for e.g. the pay out percentage might be 90%, meaning the one arm bandit will pay ninety per cent of all the stakes played, and the casino simply gets to keep 10%.

This does not imply that each time you bet ten credits you will receive nine in return – where’s the fun … excitement in that? Instead, the casino slot machine will not pay out for a bit, and then suddenly jump on a hot streak and you might draw the big grand prize.

The pay off percentages usually will vary between the assorted games and a handful of the very acclaimed casinos, for e.g Golden Online Casino, which tenders a pay out rate of up to 95 per cent!

Thus, in essence, the one-armed bandit takes all the cash played into it and pays it out to a few privileged winners. The casino only gets to keep a fairly indistinct % of all the odds put out.

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

When you hit spin on the one-armed bandit, a combination is developed by the RNG which corresponds to the pictures on the reel.