“The Internet and the World Wide Web are the same thing”

It's a common modern mix-up to think that the vast global network (Review) connecting computers is the same thing as the collection of websites we browse daily. This misconception often stems from the World Wide Web's immense popularity and its role as the primary interface through which most people experience the online world. While the terms are frequently used interchangeably in everyday conversation, they represent distinct, though interconnected, technological concepts.

The Internet, a global network of interconnected computer networks, has roots stretching back to the late 1960s with projects like ARPANET, developed by the U.S. Department of Defense. It's the underlying infrastructure, a vast system of cables, routers, and servers that allows data to travel between devices worldwide, using protocols like TCP/IP. The World Wide Web, on the other hand, was invented much later in 1989 by Tim Berners-Lee at CERN. It is a service that runs on the Internet, providing a system of interlinked hypertext documents and other resources accessible via web browsers using the Hypertext Transfer Protocol (HTTP). Think of the Internet as the roads and highways, and the Web as just one type of vehicle, like a car, that travels on those roads, carrying specific kinds of information.

People commonly conflate the two because the Web is undeniably the most visible and widely used part of the Internet for most individuals. When someone says "the internet is down," they usually mean they can't access websites or check email, which are services facilitated by the Internet. However, other services like email, online gaming, and file transfer protocols (FTP) also utilize the Internet's infrastructure but are not part of the World Wide Web itself. The Web's user-friendly graphical interface and its explosive growth in the 1990s made it synonymous with online access for many, even though the Internet existed and was used for various purposes long before the Web was conceived.