The document provides an overview of the internet and social media. It discusses how the internet was developed in the 1960s and became freely accessible in the 1990s. It connects devices globally and enables applications like email, search engines, ecommerce, education, communication, and social media. Social media allows sharing of ideas and building online communities but excessive use can replace real social interaction and lead to addiction. India has a large number of internet users, with 40% of its population now online.