The internet is the world’s most popular computer network that began as an academic research project in 1969 and became a global commercial network in the 1990s. Today it is used by more than 4.7 billion people around the world and has intertwined ever more deeply with our daily lives. Most people access internet content using a (worldwide) web browser like Chrome and Safari. Indeed, the web has become so popular that many people incorrectly treat the internet and the web as synonymous. But in reality, the web is just one of the many internet applications built on the internet. Other popular internet applications include email, BitTorrent, video games, chat or voice communication, and several others.