Casino is a gambling establishment where patrons gamble cash or casino chips on games of chance. Some casinos also have entertainment venues and restaurants. The precise origin of gambling is unknown, but it has been a part of human culture for millennia. Casinos are designed to maximize profits by combining the house edge (a mathematical advantage) with high volume, quick play and large bet sizes. The house edge can vary between games, but is generally less than two percent.
In games with an element of skill, like blackjack or video poker, the house edge can be reduced to zero by players who employ basic strategy. Casinos earn money from their gaming activities through a commission on bets, often called the vig or rake, or by giving complimentary items to players.
A casino can also be located on an American Indian reservation, which are exempt from state anti-gambling statutes. In the United States, casinos are regulated by the federal government and many states. Many people who enjoy gambling at a casino become addicted, which can have devastating social and economic effects on the addict and their families. Compulsive gambling contributes to the profitability of casinos and offsets any community benefits, such as taxes or job creation, that the facilities might bring.