Modern casino slot machine games are controlled by computer chips and software, and the winner %s are preprogrammed into the computer software.
Casino slot machines have Random Number Generators which are continually generating combinations, even when the slot machine game is not being played.
Running in unison with the RNG of the casino one-armed bandit is the pay out rate percent.
The pay out percentage controls how much the one-armed bandit will pay out, for eg the payout percent may be ninety per cent, meaning the slot machine will pay ninety per cent of all the bets played, … the casino simply gets to keep 10 per cent.
This does not mean that for every time you bet 10 credits you will receive nine in return – where’s the fun … thrill in that? Instead, the casino slot won’t payout for a bit, and then suddenly start up a hot streak and you might hit a big top prize.
The payout %s usually will vary between the a variety of games and a couple of the very famous casinos, e.g. Golden Online Casino, which tenders a payout of up to 95 %!
So, in essence, the slot machine game takes all the dough played into it and pays it out to a couple of privileged winners. The casino only gets to keep a considerably low % of all the plays placed.
The casino slot machine software controls each part of the machine, from the blinking 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 associates with the pictures on the reel.