text: A casino (or gambling house) is a place where people gamble and play games of chance. Modern casinos often have elaborate themes and flashing lights, but they would not exist without the gambling machines, blackjack, roulette, craps, baccarat and other table games that provide the billions in profits they rake in each year.
  Gambling in some form has been seen by most societies throughout history. The precise origin is unknown, but the earliest forms were probably simple dice or card games. Modern casinos are designed to be fun and exciting, but they also need to be safe. To ensure this, the industry is heavily regulated by governments worldwide. In addition to general security measures, many casinos use technology to supervise the games themselves. For example, some betting chips have built-in microcircuitry that interacts with the table’s electronic systems to oversee the exact amounts wagered minute by minute; and roulette wheels are electronically monitored regularly to discover statistical deviations from their expected results.
  Casinos are often located in or combined with hotels, restaurants, retail shops, cruise ships and other tourist attractions. They are also known for offering comps, or complimentary goods and services, to their players. These are usually based on the amount of time and money a player spends at the casino. Examples of these include free hotel rooms, meals, tickets to shows and even limo service and airline tickets for big spenders.
  While casino gambling may seem like a fun way to pass the time, it’s important to remember that the house always wins in the long run. It has a number of built-in advantages, or “edges,” that ensure it will make a profit over the average player.