Random Number Generators (RNGs) in modern slots are algorithms designed to ensure fair and unpredictable outcomes for each spin. When a player initiates a spin, the RNG generates a sequence of numbers that correspond to the positions of the symbols on the reels. This process occurs within milliseconds, making it impossible for players to predict the next outcome. The randomness ensures that each spin is independent of previous ones, maintaining fairness in gameplay. By regularly auditing these systems for compliance with gaming regulations, casinos ensure that the RNGs provide a secure and trustworthy gaming experience.