Random Number Generator - RNG

The computer program that generates the random number which determine which symbols hit the payline.

The random number generator is a chip that generates random numbers constantly, even when no one is playing. When a slot player places a bet, the number at that millisecond determines which symbols land on the payline.

The RNG is completely separate from the other programs inside the slot machine, including the reels and the images. It has no memory or knowledge of how much you've bet or how long it's been since someone won a jackpot on the machine. The random number generator just generates numbers constantly.