What is a Casino?

A Casino is a gambling establishment where people can win money by playing games of chance. The most popular games are slots, roulette, blackjack and keno.

History and Popular Games

The most popular casino games are slots, which feature varying bands of colored shapes that roll on reels. If the correct pattern is rolled, you win a predetermined amount of money.

Craps, a game of chance played with dice, is also an economic mainstay for casinos. Most American casinos reduce the house advantage to less than 1 percent, although some take more than 1.4 percent, to appeal to big bettors.

Poker, a game of chance in which players compete against each other, is another economic staple for American casinos. The house edge comes in the form of a rake, a percentage of each pot that the casino takes at the end of every hand.


Casinos employ security personnel to ensure that patrons don’t commit crimes while playing. Employees on the floor watch for suspicious behavior, and pit bosses and table managers keep tabs on their tables. They’ll alert higher-ups if they see any suspicious betting patterns that could indicate cheating.


Today’s casinos routinely use computers and video cameras to monitor the results of their games. This helps prevent cheating by detecting and preventing palming, marking or switching cards or dice. Moreover, computers and video systems help casino employees track wagers and track the amounts that each player has won and lost minute-by-minute.