Modern casino slot machines are controlled by computer software, and the winner percentages are preprogrammed into the gaming software.
Casino slot machines have Random # Generators which are endlessly generating combos, even when the game is not currently being played.
Running in unison with the Random Number Generator of the casino slot machine game is the pay out rate %.
The pay out % controls how much the one-armed bandit will pay, for e.g. the pay percentage may be ninety percent, which means the slot machine will payout ninety percent of all the stakes played, … the casino simply gets to keep 10%.
This doesn’t mean that every time you bet ten credits you will receive nine in return – where is the fun … fascination in that? Instead, the casino slot won’t payout for a little while, and then suddenly hit a hot streak and you might draw the big pot prize.
The payout percentages will very likely vary between the assorted games and some of the most favored casinos, e.g. Golden Online Casino, which gives a cash payment of up to 95 percent!
Thus, in essence, the one-armed bandit takes all the funds played into it and pays it out to a few lucky winners. The casino only gets to keep a relatively minute % of all the plays placed.
The casino one armed bandit software controls each and every part of the machine, from the flickering lights to the rotating of the reels.
When you hit spin on the one-armed bandit, a combination is developed by the RNG which relates to the pictures on the reel.