A casino is a place that houses games of chance and offers the opportunity to gamble. It also may offer restaurants, bars and entertainment shows. People typically pay to enter casinos and exchange cash for chips that can be used to play the games. Many states and countries have laws regulating gambling and casinos. Some have banned it entirely or limited it to certain kinds of games.
Gambling has been a part of human culture for millennia. The earliest evidence dates from 2300 BC China, where archeologists found wooden blocks used to simulate dice games. Dice appeared in Rome around 500 AD, and card games became popular in the 1400s. Modern casinos are large, lavish places where gambling is elevated to an art form with opulent furnishings and overflowing bars.
Casinos rely on a variety of technologies to supervise their operations and to detect cheating or stealing by patrons. Electronic systems monitor betting chips, which contain built-in microcircuitry, to ensure the correct amounts are wagered minute by minute; roulette wheels are electronically monitored to discover quickly any deviation from their expected results; and slot machines have an internal computer that randomly determines payouts.
Despite these measures, casinos are sometimes criticized for the way they profit from compulsive gamblers. Studies show that addicted players generate a disproportionately high share of casino profits, and the costs of treating problem gamblers can offset any economic benefits the casinos might bring to a community.