Modern casino Slots are controlled by computer software, and the winning %s are pre-programmed into the game software.
Casino slot machine games have Random Number Generators that are eternally generating combinations, even when the machine is not currently being played.
Running synchronously with the Random Number Generator of the casino slot machine is the pay out rate per cent.
The payout percent controls how much the one-armed bandit will pay, for example the pay out % could be ninety percent, which means the slot machine will payout 90% of all the wagers played, and the casino gets to keep 10 per cent.
This really does not mean that each and every time you bet 10 credits you will receive 9 in return – where’s the fun and fascination in that? Instead, the casino one arm bandit just will not payout for a while, and then suddenly start up a hot streak and you might draw the big top prize.
The pay out %s most likely will vary between the different games and a few of the highly acclaimed casinos, like Golden Online Casino, which provides a pay out of up to ninety-five per cent!
So, in essence, the slot machine takes all the $$$$$ played into it and pays it out to a number of privileged winners. The casino only gets to keep a averagely small per cent of all the plays allocated.
The casino slot software controls each part of the machine, from the blinking lights to the spinning of the reels.
When you hit spin on the one-armed bandit, a combination is put together by the RNG which relates to the pictures on the reel.