A narrow opening or groove in something. You can put mail through a slot in a door or in the wall. There is also a slot on the top of a computer tower to hold a memory card or other peripheral device.
A slot may also refer to:
A slot is an operating system concept, part of the operation issue and data path machinery that surrounds a set of one or more execution units (also called functional units). In very long instruction word (VLIW) computers, it can describe either an ISA (Industry Standard Architecture), PCI (Perimeter Connector Interconnect), or AGP (Accelerated Graphics Port) expansion slots; or a memory slot on a laptop.
Casino managers have the arduous task of optimizing their all-important slot revenue without driving players away (they know that someone who doesn’t like high prices will go somewhere else). This is why they resist increasing their house advantage on slot machines too much; they don’t want to kill the golden goose.
Modern slot machines are simple games of chance. You insert your currency, decide on your bet amount, and press spin. The machine then randomly selects a series of numbers that determine where the symbols end up on the reels. If the symbols line up in a winning combination, you receive a payout according to the machine’s paytable. Some slots even have bonus features and progressive jackpot levels. These extras can increase the chances of hitting the jackpot.