What Is a Slot?


A slit or narrow opening, as in a door or machine, into which something can be inserted. Also: a position in a sequence or series; an assignment or job opening.

A slot in a computer is a set of data points, typically representing the physical dimensions and positions of expansion cards. Typically, a single motherboard has several slots to accommodate multiple expansion card types. The slots are located at various locations on the motherboard, depending on the manufacturer’s design.

Until recently, in live casinos, players dropped coins into slots to activate games for each spin. This changed as bill validators and credit meters were added to machines, and online casinos began using advance deposits and credits instead of cash.

A type of slot is a win line. These lines run left to right across the reels and can be configured with as few as five or up to a hundred paylines. The more paylines in a slot, the more opportunities to win. In addition to winning lines, slots often feature special symbols that can award additional payouts. For example, firecracker symbols can turn the entire reel wild or wheel symbols can award one spin of a bonus wheel. These extras can add a new level of excitement to a game and increase player’s chances of making big wins.