Modern casino slot machines are controlled by computer software, and the winning percentages are preprogrammed into the computer software.
Casino Slots have Random Number Generators that are constantly generating combinations, even when the slot machine game is not being played.
Running simultaneously with the random # generator of the casino slot machine is the pay out rate %.
The pay out per cent controls just how much the one-armed bandit will payout, for e.g. the payout % may be 90%, meaning the slot game will payout ninety percent of all the bets played, and the casino only gets to keep ten per cent.
This really does not mean that for every time you bet 10 credits you will receive 9 in return – where’s the fun … thrill in that? Instead, the casino slot machine game will not payout for a little while, and then suddenly fire up a hot streak and you might hit a big grand prize.
The payout %s will vary between the differing games and several of the notably popular casinos, for example Golden Online Casino, which offers a payout rate of up to ninety five %!
As a result, in essence, the slot machine takes all the currency played into it and pays it out to some fortunate winners. The casino only gets to keep a generally petite percentage of all the stakes 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 formed by the RNG which associates with the pictures on the reel.