Fruit machines, also known as slot machines, are popular gambling devices found in casinos and arcades. They typically feature colorful symbols, including various fruits like cherries, lemons, and watermelons. Players insert coins or tokens and pull a lever or press a button to spin the reels, hoping to match symbols for a payout. These machines operate on a random number generator (RNG), ensuring that each spin is independent and unpredictable. Players can win prizes based on the combinations of symbols that appear when the reels stop. Fruit machines are often associated with gambling and entertainment in many cultures.