A casino is an establishment for certain types of gambling. It is often combined with hotels, restaurants, retail shops, cruise ships, and other tourist attractions. In the United States, there are many jurisdictions where casinos can operate, including Atlantic City, New Jersey, Las Vegas, Nevada, and Chicago, Illinois. In addition, several American Indian reservations have casinos. Moreover, some European countries also have legal casinos.

Modern casinos utilize advanced technology to monitor and supervise their operations. This is especially true in the case of electronic systems used for games like roulette and dice, which can be monitored electronically and quickly detect any statistical deviations from expected results. Similarly, chip tracking allows casinos to monitor betting chips minute by minute to ensure they are being wagered as intended, and video cameras are routinely used to observe casino visitors.

Gaming mathematics and computer programming are also important to the operation of casinos. Casinos employ mathematicians and programmers specializing in this field to help them analyze game rules, design game software, and develop mathematical models of probability and payouts. They are sometimes referred to as gaming analysts.

Aside from generating revenue for the casino, these technologies can also be utilized to prevent fraudulent activity, such as collusion between players, which is often difficult to spot. This is why casinos are frequently patrolled by security staff and use cameras to monitor visitors and their behavior. Casinos can also make money by promoting tourism in their area, thereby helping local businesses and increasing the economy of the region.