A casino is a public room where gambling games can be played. The classic example is the one at Monte Carlo, which has been a significant source of revenue for the principality of Monaco since 1863.
Casinos typically have a wide variety of games, ranging from traditional table games such as blackjack and roulette to poker and video slots. Many casinos also feature a range of entertainment options, such as stage shows and DJs.
Gambling games in a casino are conducted by dealers, who are trained to prevent cheating or theft. However, because large amounts of money are handled within a casino, both patrons and staff may be tempted to steal, either in collusion or independently; therefore, casinos employ a number of security measures to prevent this. These include cameras, security personnel, and rules requiring that players keep their cards visible at all times.
Most casino games have mathematically determined odds, which give the house a uniform advantage over the player. The house’s edge is usually expressed as a percentage, such as “house edge” or “expected value.” Some casinos employ mathematicians and computer programmers to analyze game theory and statistics, to design new games, and to monitor the fairness of existing ones. These specialists are often called gaming mathematicians or game analysts. In some cases, casinos may also use electronic devices to supervise the games themselves; for instance, betting chips have built-in microcircuitry that allows them to be tracked minute by minute and warned of any abnormal deviation from expected results.