Author: ytianle

WWW

Introduction

WWW (World Wide Web) is a tremendous distributed system of interlinked hypertext documents and multimedia.

Resources of WWW are distributed across millions of web servers worldwide.

WWW works with client-server architecture. Web browsers (clients) request resources from web servers, which respond by delivering the requested content

Goal of WWW

WWW aims to address the following fundamental questions:

1. How to locate and access resources on the web?
2. How to ensure secure communication between web clients and servers?
3. How to let different web browsers interpret and display web content correctly?
4. How to deliver web content with high availability and performance?

Solution of WWW

• For question 1, we use URL to locate resources on the web.
• For question 2, we use HTTP protocol to structure communication between web clients and servers.
• For question 3, we use HTML, CSS, and JavaScript to define and render web content.
• For question 4, we use Proxy Servers and Cookies to optimize content delivery and enhance user experience.