Modern casino one armed bandits are controlled by computer chips and software, and the winning percentages are pre-programmed into the computer software.
Casino slot machines have RNGs that are continuously generating combinations, even when the machine is not being played.
Running collectively with the Random Number Generator of the casino slot machine is the pay out rate %.
The pay out per cent controls just how much the slot machine will payout, for e.g. the payout percent might be ninety per cent, which means the one arm bandit will pay ninety per cent of all the stakes played, … the casino gets to keep 10 percent.
This doesn’t mean that each time you bet ten credits you will receive 9 in return – where is the fun and exhilaration in that? Instead, the casino one arm bandit will not pay out for a while, and then suddenly go on a hot streak and you might hit a big jackpot.
The pay out percentages will very likely vary between the differing games and some of the notably famous casinos, such as Golden Online Casino, which tenders a payment of up to 95 per cent!
This means that, in essence, the one-armed bandit takes all the dough played into it and pays it out to a few lucky winners. The casino only gets to keep a generally minute percent of all the plays allotted.
The casino one armed bandit software controls any part of the machine, from the flickering lights to the rotating of the reels.
When you hit spin on the slot machine game, a combination is set up by the RNG which corresponds to the pictures on the reel.