A slot is a narrow opening in something, especially a machine or container. A coin can be dropped into a slot to make it work. The car seat belt slotted into place easily. A person can also use the term to refer to a position or job, such as the “slot” of chief copy editor: He had the slot at the Gazette for 20 years. In aviation, a scheduled time for an aircraft to take off or land, as authorized by the airport or air-traffic authority: We had to wait until we got a slot to fly.
The probability of hitting a certain combination on a particular slot machine is determined by the random-number generator, which runs through dozens of combinations each second. Each spin of the reels corresponds to a different combination, and only those combinations that result in a payout will be signaled by a microprocessor. Therefore, if you see another player leave a machine with hundreds of dollars in the credits display and cashout, don’t feel that you are “due” for a hit — it just wouldn’t happen.
Some slots offer bonus features that reward players when they collect symbols on a pay line, or trigger other game-specific events. The payouts associated with these features are usually listed on the pay table of the machine. The symbols vary depending on the theme of the machine, and can include classic objects like fruits and bells or stylized lucky sevens. A player can insert cash or, in “ticket-in, ticket-out” machines, a paper ticket with a barcode to activate the machine.