A casino is a building or room where people play gambling games. The games may include roulette, blackjack, poker, baccarat, craps and other games of chance. Casinos also offer food and drinks. They may have live entertainment or stage shows. In the United States, casinos are mostly located in Las Vegas and Atlantic City. However, there are many more in other cities and in Native American casinos.

A casino’s main source of income is from gambling machines. Slots, video poker and the like are operated by computer chips. A player puts money in a machine, pulls a handle or pushes a button and waits to see the outcome. There is no skill involved, and the result depends on random chance only. The casino earns a percentage of the money that is played through them.

Table games are another important source of revenue for casinos. These games are a form of gambling that involves one or more players competing against the house (the casino). The games are run by employees known as dealers or croupiers. Table games also require a degree of knowledge and strategy to play well.

Large amounts of money are handled in a casino, and there is a risk that staff or patrons will try to cheat or steal. To prevent this, most casinos have security measures in place. These can range from surveillance cameras to a sophisticated eye-in-the-sky system that can monitor all tables, windows and doorways at once.