A casino is a place where people can play gambling games. In modern casinos, the majority of gambling is done with electronic devices such as slot machines and video poker. Some casinos also offer traditional table games, such as blackjack and roulette.

There are over 1,000 casinos in the United States, and the number continues to rise. Casinos are found in a variety of locations, from large resorts such as Las Vegas to smaller neighborhood establishments. Some states have banned or restricted casino gambling, but many allow it in some form.

Casinos are places where people can gamble, and often contain other entertainment features such as restaurants, bars, and nightclubs. Casinos can be divided into three general categories: gaming machines, table games, and random number games. Gaming machines, such as slot machines and pachinko, are played by one player at a time and do not require the assistance of casino employees. Table games, such as blackjack and craps, are played by multiple players and conducted by casino employees known as croupiers. Random number games are based on the selection of random numbers by a computer.

Because of the large amounts of money handled within casinos, both patrons and staff may be tempted to cheat or steal, either in collusion or independently. To counter these dangers, most casinos have extensive security measures. These include video cameras and electronic monitoring systems that monitor games and detect any statistical deviations from expected results.