Casino is a gambling establishment offering a variety of games of chance. Casinos earn a significant portion of their money from slot machines, which allow patrons to put in a coin and watch varying bands of colored shapes roll on reels (actual physical or a video representation). The player can then push a button and receive a predetermined amount of money based on the pattern that appears. Unlike other casino games, no skill is involved in playing slot machines.

Something about casinos seems to encourage cheating, stealing and scamming, which is why casino security is an important aspect of the business. The most obvious way to do this is by enlisting casino employees to keep an eye on the floor and the patrons. Table managers and pit bosses have a wide view of the tables and can easily spot blatant cheating or marking. Casinos also have cameras that monitor the games and the patrons.

Casinos also try to entice people to gamble by giving them free food, drinks and accommodations. These are called comps. The goal of these perks is to get gamblers to spend more time and money in the casino, and to bring their friends and family to visit. The freebies are designed to stimulate the senses and increase excitement, and many casinos use bright, gaudy decor and loud music to attract gamblers. They often have no clocks on the walls, because they want patrons to lose track of time.