Reels, paylines, and symbols are the three main parts that make up a slot machine's basic structure. Paylines are the lines that determine winning combinations, whereas reels are ace23 loginthe vertical sections that spin when they are activated. Players frequently have the option of selecting how many paylines to activate, which can have an impact on each spin's cost and winning potential. The symbols on various machines differ greatly; some have traditional fruit symbols, while others might use mythological, popular culture, or film themes.