The word casino is derived from the Latin casin
Casinos often encourage gamblers by offering them free items, known as comps. These include food, drinks, hotel rooms, and even show tickets. In the 1970s and 1980s, many American casinos offered these perks to attract and keep high rollers, generating substantial revenue from them. Comps are now a common feature of most modern casinos, but they are typically less extravagant than those in the past.
Casinos use security measures to protect patrons and property. These may include cameras, electronic surveillance, and guards. They also employ rules and procedures to prevent fraud, such as requiring that players keep their hands visible at all times when playing card games. In the United States, where casinos are most prevalent, the majority of gaming is done in Las Vegas and Atlantic City. Other cities, such as Chicago and Atlanta, have smaller concentrations of casino activity. The industry is regulated in most states. Most states limit the number of casino licenses, and a few prohibit it completely.