A Casino, also known as a gaming house or a gambling establishment, is an establishment where people can play various games of chance. Casinos are often combined with hotels, restaurants and retail shops and are found in countries around the world. In the United States, Las Vegas is the largest casino market with over a thousand casinos. Other major cities with large casino markets include Atlantic City, New Jersey and Chicago.
In most games of chance, a casino has a built-in mathematical advantage over the players. This mathematical expectation can be lower than two percent, but it is enough to give the casino a profit, which it shares with its employees through a commission called the vig or rake. Those who use skill to overcome the house edge are called advantage players.
Security is a significant issue at casinos, with both patrons and staff members being tempted to cheat and steal in collusion or independently. This is partly due to the large amounts of money handled within casinos. To counter this, casinos spend a large amount of money on security measures, such as surveillance cameras.
In addition, the routines and patterns of casino games follow certain patterns that make it easier for security personnel to spot suspicious activities. For example, the way dealers shuffle and deal cards and where players place their bets on the table are consistent, so any deviation from these habits is easily detectable. Casinos can also use technology to track player movements and analyze betting patterns.