You can still find these symbols emblazoned on retro slot machines hidden away in the back of clubs, pubs, and other venues all over the world. For this reason, slot machines are known as fruit machines in some countries, and symbols like the twin cherries, lemon, and orange still play a big role in modern slot games. Some of the very first slot machines used fruit symbols, alongside iconic symbols such as the Liberty Bell, 7s, and BAR.