Summary - The Internet is a very powerful weapon that has evolved over the years since its origin in the early 1960s. The Internet has evolved from military use only to daily use. The Internet is the largest and most powerful computer network. Internet use has grown rapidly over the past decade. There are billions of Internet users around the world and their numbers are growing by the second. Keywords: communication, computer network, decoding, ARPANET, packet switching, security, I. IntroductionCommunication has become much more convenient thanks to the invention of the Internet. The Internet has now become an integral part of people's daily lives in general. The advantages of the Internet1. Online Shopping Thanks to the Internet, it's easier than ever for people to view and purchase things from the comfort of their own home, with just the press of a button. You can buy a wide variety of things, from books to clothes to cars, on the Internet. The Internet has made it easier to advertise one's brand to a wide variety of consumers through popular websites and also on social media. With the convenience of accessing information from anywhere, stores can now easily keep up with the latest trends and styles to meet the wants and needs of the consumer. Websites like eBay, Amazon, Wal-Mart, and Best Buy have thrived in the online shopping industry. business. 2. Social Media Websites like Facebook, Twitter, YouTube and other social media sites have emerged through the Internet and have had a huge impact on the entire world. These are now sites and apps that allow people to communicate more quickly and view each other's information, photos and interests. Facebook especially had the most users. At the end of 2015, its monthly active users represented approximately 1.6 billion of the total population. And this is just the number of active users in the last 30 days of the statistic. Other mobile social apps are Vine and Snapchat, which many young people now use. There are also dating sites where people post photos of themselves and can potentially meet.