The Internet is a global network connecting millions of computers across over 190 countries for sharing data, news, and opinions. No single entity owns or controls the entire Internet, which relies on physical infrastructure connecting networks. Most people use the Internet for information, leisure, socialization, shopping, and business, and the author personally spends four hours per day using it for leisure, information, and socialization, having become reliant on the Internet as it facilitates tasks like shopping and bill paying.