Modern casino slot machines are controlled by computer chips and software, and the winning %s are pre-programmed into the computer software.
Casino slot games have Random Number Generators which are continually generating combinations, even when the slot machine is not currently being played.
Running in sync with the random # generator of the casino one-armed bandit is the pay out rate percentage.
The pay out per cent controls just how much the slot machine will payout, for eg the pay per cent may be ninety percent, which means the one arm bandit will payout ninety per cent of all the stakes played, and the casino gets to keep ten percent.
This doesn’t imply that every time you bet 10 credits you will receive 9 in return – where is the fun and exhilaration in that? Instead, the casino slot will not payout for a bit, and then suddenly fire up a hot streak and you might hit a big jackpot.
The pay out percentages will vary between the different games and a few of the highly established casinos, for example Golden Online Casino, which puts forth a payout rate of up to ninety five percentage!
This means that, in essence, the one-armed bandit takes all the funds played into it and pays it out to a number of chosen winners. The casino only gets to keep a fairly tiny percentage of all the plays allotted.
The casino slot software controls any part of the machine, from the flashing lights to the revolving of the reels.
When you hit spin on the one-armed bandit, a combination is put together by the RNG which connects with the pictures on the reel.