A casino is a building where people can gamble and play games of chance. It is most often associated with Las Vegas, but casinos exist worldwide. Many states have passed laws to allow the establishment of casinos on reservations or in other locations, and the number of casinos is increasing.
Casinos can be divided into three general categories: gaming machines, table games, and random number games. Gaming machines, such as slot machines, are operated by computer chips and do not require the intervention of casino employees. Table games, such as blackjack and craps, involve a human dealer. Random number games, such as roulette and bingo, use a computer program to select numbers at random.
Casinos may be prone to cheating and theft by patrons and staff, either in collusion or independently. As a result, they generally have strict security measures. These may include a physical security force, as well as specialized surveillance departments. Modern casinos also employ a variety of technological measures to prevent cheating and theft. For example, most machines are wired to a central server that displays statistical deviations. In addition, some casinos have security cameras that monitor the entrances and exits of patrons. These cameras are designed to catch people entering and leaving the premises without paying for their gambling tickets, as well as people trying to sneak in with unauthorized items. Casinos may also offer incentives to big bettors, such as free spectacular entertainment and luxury accommodations.