If you’ve been around slots you might’ve heard various names for the slots. From 5 reel slots to 3 reel slots, free slots, and classic slots. Each slot has their own meaning for those names. Classic slots refer to the modernized version of the classic slots that started it all in the 19th century. Free slots refers to the free mode that every slot machine offers to players. As you might be able to guess, the 3 reel and 5 reel slots refer to the number of reels that are in each game.