A slot is a position or time in which something can be done.
In a video game, a slot is the place where a player can put coins to play. A slot on a video machine is also a position where a character can move. A slot in a computer program is a position where data can be stored.
The slot definition also refers to the narrow notch, groove, or opening of a device that allows for insertion and removal of something, such as a key or a coin in a vending machine. It may also refer to a particular place, time, or position, such as a spot on the dance floor or an appointment on a schedule.
In slot machines, players insert cash or, in the case of “ticket-in, ticket-out” machines, a paper ticket with a barcode to activate the machine. The machine then reads the barcode and determines the number of credits a player will receive. The amount of credits awarded is based on the prize table and the symbols that appear on the pay line. Prizes range from small amounts of money to free spins or merchandise.
In the 1980s, slot manufacturers incorporated electronics into their machines and began weighting certain symbols to create more frequent winning combinations. This reduced jackpot sizes but increased overall game frequency and player engagement. Today, most slots are operated using digital technology that replaces the mechanical operations of early machines with buttons and touchscreens. The digital operation of these machines has also allowed for more varied and entertaining video games.