The document discusses how the internet works by explaining key concepts like URLs, IP addresses, domain name servers, HTTP protocols, and the infrastructure of submarine cables that connect the world. It notes that domain names like "djangogirls.org" are translated to IP addresses by servers, and that browsers send requests via HTTP to servers hosting websites, which then return responses to the browsers.

1. H O W T H E I N T E R N E T W O R K S ?
SharreChen

2. http://djangogirls.org/taipei

3. http://djangogirls.org/taipei
How? Where? What?
HyperText Transfer Protocol
Domain Name
path
URL

5. 104.28.6.74
IP address
Internet Protocol

6. addressIP104.28.6.74 ??

7. 電話簿

8. V
網路世界裡的電話簿 -> Domain Name Server
http://djangogirls.org/taipei
104.28.6.74
djangogirls.org’s IP?

9. djangogirls IP address

10.
HTTP
??

11. Internet

12. small part of Internet

13. •
• NB
• (Server)
•
&

14. V
http://submarinecablemap.com/

16. Django

18. • Django HTML, CSS
• HTML, CSS
• browser
• Browser
•
Django’s response)

19. • Server ( )
• Browser request
• http://localhost:8000
• localhost Domain Name

20. Django
Python