A slot is a position in a computer motherboard or other component that accepts a particular type of expansion card. For example, a slot may refer to an ISA (Industry Standard Architecture), PCI (peripheral component interconnect) or AGP (accelerated graphics port) expansion slot. A slot is also a name for a position in a video game, such as a position in a row or column of a game screen or a virtual reel set. A slot may also refer to a specific type of bonus feature in a slot machine, such as a wild or scatter symbol that can substitute for other symbols and open a special game feature.
Slot machine:
A slot machine is a casino game that uses reels to generate combinations of symbols that earn credits according to the paytable. These combinations are usually aligned with a theme, and the symbols vary by machine. Depending on the type of machine, players can insert cash or, in ticket-in, ticket-out machines, a paper ticket with a barcode. A spinning wheel or lever activates the reels, and if a combination of symbols appears on the paytable, the player wins credits. In the United States, these games are called slot machines; in the UK, they are known as fruit machines, and in Australia and New Zealand they are called pokies. The invention of the first modern slot machine was by a company called Sittman and Pitt in 1891. Charles Fey improved upon their design in the 1900s, and his machine became very popular.
