This was initially possible only on a desktop computer but in recent years, many online casinos have become mobile, allowing players to enjoy their games on smartphones and tablets. Hundreds of virtual gambling operators have launched websites where casino fans can play for real money and earn huge monetary prizes. Thanks to the advancement of computer technologies, casinos have transitioned from gambling hubs like Las Vegas and Monte Carlo to the World Wide Web. Gambling has become the preferred means of entertainment for people from all walks of life, who would visit casinos to put their money on stake in hopes of earning even more if lucky. The gambling industry has been one of the most popular and rapidly expanding industries over the last century.