HTTP is the protocol that allows computers to exchange information over the web. It uses a client-server model where browsers act as clients that send HTTP requests to servers, which then return HTTP responses with HTML, CSS, and JavaScript files to display new web pages. When a user enters a URL in their browser, it sends an HTTP request to the designated server, which returns a response containing the files to render and display the requested page.

1. WhatisHTTP?
A step-by-step explanation

2. Howcomputersexchangeinformationontheweb
Question
ComputerA ComputerB

3. Howcomputersexchangeinformationontheweb
Question
Answer
ComputerA ComputerB

4. Howcomputersexchangeinformationontheweb
Client Server
Question
Answer

5. Howcomputersexchangeinformationontheweb
HTTPrequest
HTTPresponse
Client Server

6. Webbrowsers
HTTPrequest
HTTPresponse
Server

7. Webbrowsers
WhenyouenteranewURLinyourbrowserandpressEnter...
NewURL
Server

8. Webbrowsers
...yourbrowsersendsanHTTPrequesttotheserver...
HTTPrequest
Server

9. Webbrowsers HTTPresponse
...theserverreturnsaresponse withHTML,CSSandJavaScript...
Server

10. Webbrowsers
...whichyourbrowserrendersasanewpage.
Newpage
Server