Those numbers determine which stop each reel winds up on after you spin the reels. These games use a computer program called a random number generator (RNG) to constantly generate numbers. The first thing you need to understand about slot machines is how they determine winners. The other is to provide some legitimate slot machine tips that might actually help you win more often and have more fun while you’re at it. The first is to debunk some of the so-called “slot machine strategies” being sold by the ignorant and unethical.