The internet is a worldwide network of computer networks that connects billions of devices. It was developed in the 1960s when computers were first connected to share information. By the 1970s, the term "internet" was used to describe the network of networks. The world wide web was invented in 1989, allowing users to access pictures, videos and other multimedia online. It is estimated that by 2020, over 30% of the world's population will be internet users. While it provides a quick way to access and share information globally, the internet also poses privacy and security risks.