Modern casino Slots are controlled by a computer, and the win %s are pre-programmed into the software.

Casino Slots have Random Number Generators that are ceaselessly generating combinations, even when the slot machine game is not active.

Running in sync with the Random Number Generator of the casino one-armed bandit is the payout per cent.

The payout % controls how much the slot machine will pay, for eg the payout percent could be ninety per cent, which means the slot game will pay out ninety per cent of all the stakes played, and the casino simply gets to keep 10 per cent.

This doesn’t imply that every time you bet 10 credits you will receive nine in return – where is the fun and thrill in that? Instead, the casino slot just will not pay out for a little while, and then suddenly start up a hot streak and you might catch the big top prize.

The pay off %s will vary between the different games and a few of the highly popular casinos, e.g. Golden Online Casino, which gives a payout rate of up to 95 %!

This means that, in essence, the slot machine takes all the money played into it and pays it out to a couple of lucky winners. The casino only gets to keep a averagely small % of all the bets allocated.

The casino slot software controls each part of the machine, from the flashing lights to the rotating of the reels.

When you hit spin on the slot machine, a combination is generated by the RNG which connects with the pictures on the reel.