Final answer:
The key invention that made the World Wide Web possible is the Hypertext Transfer Protocol (HTTP). HTTP is the protocol that allows for the transfer of hypertext documents, enabling users to browse and access websites on the internet. The development of HTTP by Tim Berners-Lee, along with the invention of other web technologies such as HTML and URLs, revolutionized the way information is shared and accessed over the internet.
Step-by-step explanation:
The key invention that made the World Wide Web possible is the Hypertext Transfer Protocol (HTTP). HTTP is the protocol that allows for the transfer of hypertext documents, enabling users to browse and access websites on the internet. It is the foundation for the communication between web servers and web browsers, allowing for the retrieval and display of web pages.
The development of HTTP by Tim Berners-Lee, along with the invention of other web technologies such as HTML (Hypertext Markup Language) and URLs (Uniform Resource Locators), revolutionized the way information is shared and accessed over the internet.
For example, when you type a URL into your web browser's address bar and press enter, the browser sends an HTTP request to the corresponding web server. The server then responds with the requested web page, which is displayed to you by the browser.