The Web and the Browser

Alessia S. Fitz Gibbon

INFO 340

In this video...

  • The Internet: Clients and Servers

  • What the browser does

The Internet

  • Servers: "host" the web pages and provide it upon request

  • Clients (browsers): request web pages

protocol

domain

resource

"Hi Wikipedia, I'd like you to send me the Informatics page!"

two

t
 

(how to handle info)

(who has info)

(what info you want)

Web Server

Response

Request

Web Requests

+

=

What's in a request?

en.wikipedia.org?

198.35.26.96

"wiki/Informatics"?

<!DOCTYPE html><html><head>...

What's in a response?

<html>
<head>
  <title>My Fancy Title</title>
  <meta charset="UTF-8">
  <link rel="stylesheet" href="styles.css">
  <script src="script.js"></script>
</head>
<body>
      <h1>Hello world!</h1>
</body>
</html>