The World Wide Web (WWW or Web) is a global information system that allows users to access and share interconnected documents, images, videos, and applications over the Internet using web browsers. Invented by Tim Berners-Lee in 1989, it operates through HTTP/HTTPS protocols, HTML-based web pages, and unique URLs, enabling seamless navigation via hyperlinks. Unlike the Internet (the underlying network), the Web focuses on user-friendly content delivery, powering everything from simple websites to complex web apps, e-commerce platforms, and cloud services. As the foundation of modern digital life, it continues to evolve with advancements like Web3, AI integration, and progressive web apps (PWAs).