The World Wide Web (WWW) and web servers are fundamental components of the internet that enable the sharing and accessing of information.
World Wide Web (WWW):
- The World Wide Web is a system of interlinked hypertext documents and multimedia content that is accessed via the internet using web browsers.
- It was invented by Sir Tim Berners-Lee in 1989 and became publicly available in 1991. The WWW is often referred to simply as "the web."
Web Server:
- A web server is software or hardware that stores, processes, and serves web pages to users. It responds to requests from web browsers and delivers the requested web content.
- Web servers use the Hypertext Transfer Protocol (HTTP) to communicate with web browsers. The secure version, HTTPS, uses SSL/TLS encryption for added security.
- Common web servers include Apache HTTP Server, Nginx, Microsoft Internet Information Services (IIS), and others.
Working :
- When a user enters a web address (URL) into a browser, the browser sends a request to the appropriate web server.
- The web server processes the request, retrieves the requested web page or resource, and sends it back to the user's browser.
- The browser then renders the web page, displaying text, images, multimedia, and other content.
Components of a URL (Uniform Resource Locator):
- A URL is a web address that specifies the location of a resource on the internet. It typically consists of the following components:
- Protocol (e.g., http:// or https://)
- Domain name (e.g., www.ezexplanation.com)
- Path (optional, specifying the location of a specific resource on the server)
- Query parameters (optional, providing additional information to the server)