A casino, also known as a gambling house or kasino, is an establishment for certain types of gambling. These casinos can be found in a wide variety of locations and are often combined with hotels, restaurants, retail shops, cruise ships, and other tourist attractions. Many states regulate the operation of casinos, while others do not. The first government-sanctioned casino was opened in 1638 in Venice, Italy. This four-story gambling house included rooms for primitive card games and a variety of food and drink to keep patrons satisfied.
Modern casinos use technology for both general security and game supervision. Elaborate surveillance systems offer a high-tech eye-in-the-sky that allows security workers to monitor every table, window and doorway in the facility. Cameras can be adjusted to focus on specific suspicious patrons by security personnel in a separate room filled with banks of monitors. Computers regularly supervise roulette wheels, blackjack tables and other games to discover any statistical deviation from expected results.
The majority of a casino’s profits come from games of chance, although some have an element of skill (such as poker). Each game has a built in advantage for the house and this is commonly referred to as the house edge. The house also takes a fee from players in games such as poker where the players are pitted against one another, a charge known as the rake. In addition, a casino may give out complimentary items or comps to regular patrons such as free hotel rooms, dinners, show tickets and airline tickets.