One of the ways to protect your casino is to make sure that it is secure. Casinos employ elaborate surveillance systems that monitor every aspect of the facility. These cameras, which are placed in every window and doorway, keep watch over every table, as well as the entire casino floor. These cameras are adjustable to focus on any patron who appears suspicious, and all video feeds are recorded for later review. In addition to cameras, computers are used to determine the payouts of slot machines, and no one personally watches the floor.

Most of today’s casinos operate on the same basic principle: people gamble for money. They play a casino game, called roulette, and can either become a high roller or a low roller. A high roller may earn comps by playing slots for a long time, while a low-spender can claim lower-cost comps. Many casinos operate comp programs similar to those found on airlines. Points are exchanged for free slot play, free or discounted food and beverages, or tickets to live shows. These programs are important marketing tools for casinos, as they enable them to create patron databases for advertising and marketing purposes.

In the 1990s, casinos began to use computers and video cameras to monitor the games. Eventually, casinos introduced “chip tracking,” a system that uses betting chips with built-in microcircuitry to keep track of all wagers minute-by-minute. In addition, roulette wheels are regularly monitored for statistical deviations. These developments have resulted in enclosed versions of many games, which do not have dealers. Instead, players place bets by pushing buttons instead of placing cards.