Web Clients and Servers - jude-lindale/Wiki GitHub Wiki
Web content lives on web servers.Web servers speak the HTTP protocol, so they are often called HTTP servers. These HTTP servers store the Internet’s data and provide the data when it is requested by HTTP clients. The clients send HTTP requests to servers, and servers return the requested data in HTTP responses.
The most common client is a web browser, such as Microsoft Internet Explorer or Netscape Navigator. The server tries to find the desired object (in this case, “/index.html”) and, if successful, sends the object to the client in an HTTP response, along with the type of the object, the length of the object, and other information.