A casino is a gambling establishment, especially one offering table games and slot machines. Some casinos also offer shows and other entertainment. The term is also used for a group of gaming rooms, particularly in Europe.
The idea of a casino dates back to the 16th century, when a gambling craze swept Italy and nobles would meet in private places called ridotti. Although technically illegal, these genteel clubs were rarely bothered by the authorities.
Today, casinos rely on technology to ensure security and fairness. Many have high-tech eye-in-the-sky surveillance systems that allow security personnel to monitor each table, window, and doorway. They use this data to spot patterns in behavior. Security workers can also monitor the behavior of slot machine players in a separate room filled with banks of security screens. When a player makes a change that deviates from expected behavior, security staff can pinpoint the culprit quickly.
Casinos also reward regular patrons with comps. A “comp” is a free good or service, often money, given to people who play frequently. For example, a person who spends hours at the slot machines or plays blackjack might receive free hotel rooms, meals and tickets to shows. Some casinos also give limo service and airline tickets to big spenders. However, studies show that casinos drain local economies by shifting spending from other forms of entertainment and increasing the number of compulsive gamblers, who generate a disproportionate share of casino profits [Source: PBS].