Modern casino one armed bandits are controlled by computer software, and the winner %s are pre-programmed into the software.
Casino slot machines have Random # Generators which are constantly generating combos, even when the game is not being played.
Running synchronously with the random # generator of the casino slot machine is the payout percent.
The payout percentage controls just how much the slot machine will pay out, for e.g. the payout percentage might be ninety percent, meaning the one arm bandit will pay out 90% of all the bets played, and the casino gets to keep ten per cent.
This doesn’t mean that for every time you bet 10 credits you will receive nine in return – where’s the fun … excitement in that? Instead, the casino one arm bandit just won’t pay out for a little while, and then suddenly jump on a hot streak and you might hit a big top prize.
The pay out %s will definitely vary between the assorted games and a few of the extremely favored casinos, like Golden Online Casino, which puts forth a pay out of up to 95 %!
Thus, in essence, the slot machine takes all the currency played into it and pays it out to some chosen winners. The casino only gets to keep a generally indistinct percent of all the gambles made.
The casino slot machine software controls every single part of the machine, from the blinking lights to the rotating of the reels.
When you hit spin on the one-armed bandit, a combination is put together by the RNG which corresponds to the pictures on the reel.