A casino is a place where people can play games of chance or skill. Some of these games are purely random, while others require skill on the part of the player (like poker or blackjack). Casinos often offer free drinks, food, stage shows, and other entertainment to their customers.
A large percentage of casino profits come from high-stakes gamblers. These patrons usually gamble in special rooms away from the main casino floor and may have a bet size in the tens of thousands of dollars. In return for their enormous investments, these players receive comps (free goods or services) like free hotel rooms, meals, show tickets, and even limo service and airline tickets. It is not uncommon for a casino to earn millions of dollars in one day from these high-stakes gamblers.
There is a great deal of security at casinos. This begins on the casino floor, where employees keep their eyes on both the games and the patrons. Dealers are trained to watch for blatant cheating, such as palming or marking dice. The movements and habits of the players on a table also follow patterns, which makes it easy for security to spot anything out of the ordinary. Casinos are also wired to be able to track the behavior of each individual slot machine, which can help prevent fraudulent activity.