Modern casino one armed bandits are controlled by computer chips and software, and the win percentages are preprogrammed into the game software.
Casino slot machines have Random Number Generators which are continuously generating combinations, even when the slot machine is not active.
Running jointly with the RNG of the casino slot machine game is the pay out %.
The pay out per cent controls just how much the slot machine game will payout, for e.g. the pay percentage may be 90%, meaning the slot game will payout ninety percent of all the stakes played, and the casino simply gets to keep 10 percent.
This doesn’t mean that for every time you bet 10 credits you will receive nine in return – where’s the fun … exhilaration in that? Instead, the casino slot machine game won’t payout for a while, and then suddenly fire up a hot streak and you might catch the big grand prize.
The payout percentages will most likely vary between the assorted games and several of the highly common casinos, for instance Golden Online Casino, which puts forth a payment of up to 95 per cent!
Therefore, in essence, the slot machine game takes all the currency played into it and pays it out to a few fortunate winners. The casino only gets to keep a fairly small % of all the plays allotted.
The casino one armed bandit software controls any part of the machine, from the blinking lights to the spinning of the reels.
When you hit spin on the slot machine, a combination is put together by the RNG which corresponds to the pictures on the reel.