What Is a Slot?


A slot is a narrow notched opening, as in a keyway in a piece of machinery or the slit for coins in a vending machine. It is also a position in a group, sequence or series, such as the time slots used to schedule appointments with clients by health care providers.

In the past, when playing a slot machine, the player placed coins into the slots to activate each spin of the reels. Today, most slot machines are operated by computerized consoles with a monitor showing a pay table and the symbols that can be lined up to win credits. The payout amounts are based on the symbols and how many of them appear in a winning line. Some machines have wild symbols that can substitute for other symbols to complete a line.

The pay table is shown above or below the area that contains the symbols on a mechanical slot machine, and on the screen of a video slot. Besides the symbols, a slot machine’s pay table may list bonus features such as free games or jackpots. This information is useful to know before you play. The slot’s volatility is also important to consider. The higher the volatility, the more risky the game is and the greater the potential wins. However, it is possible to find a slot with a low volatility that pays out frequently and at lower amounts.