The document provides an overview of the key components and applications of the Internet. It discusses: - The TCP/IP protocol and origins of the ARPANET - Popular applications including email, Telnet, FTP, the World Wide Web, Usenet, chat, e-commerce, and entertainment - Common internet elements like web browsers, servers, clients, and how they interact - Methods of connecting to the internet including corporate dial-in, lease lines, modems, and routers

1. INTERN
ET

2. INTERNET
•INTERNET

3. :
•
•

4. • protocol)
TCP/IP

5. •
(ARPAnet)
•

6. • E-mail
• Telnet,SSH
• FTP
• www
• Usenet
• Chat
• E-Commerce
• Entertain

7. E-mail :
Electronic Mail
•
E-mail (Electronic Mail)

8. Telnet
• ,ssh(Secure Shell
(Telnet)
Tunneling)
•

9. •
FTP
FTP (File
Transfer Protocol)
•

10. World Wide
• World Widewww
Web : Web : www
•
Web Server
www
www.thaisakon.com

11. Usenet
• Usenet
•

12. Chat
•Chat

13. E-Commerce
• E-Commerce : Electronic
Commerce
• -

14. Enterta
• Entertain
in

15. E-Auction

16. IP ADDRESS)
Domain Name)
IP Address)

17. Domain Name)
IP Address)
- pwwk.ac.th
- sanook.com
- google.co.th

18. Domain
Name)
.com
.gov
.net
. Org
.ac

19. Web Browser)
-Internet Explorer (IE)
-Mozilla Firefox
-Netscape

20. - E-
learning,Digital-library
- E-Commerce
-
Internet banking

21. •Server
•Client
•

22. Server
Server
•Web Server
•Mail Server
•News server
•FTP Server
•

23. Client
•Client

24. •
Client
Server
Server

25. •
•
Coperate dial-in
•
Coperate lease line

26. •
• Modem
•
•

28. Username
Password

29. MODEM

30. MODEM

32. • Username
Password
•
•
•

33. Cooperate dial-in
•
•

34. •
• Modem
•
Server
•
•

36. Server

37. MODEM

38. MODEM

40. • Username Password
•
•
Server
•
•

41. Cooperate lease line
•
•
•

42. • Lease line
• Modem
• Router
•
Server
•

44. Server
Internet Server
Web Server
Mail Server

45. Router

46. MODEM

47. . UCOM
DATANET

48. MODEM

49. Router

50. Internet
Server
Web
Server
Mail
Server

51. •
Server
•

52. HUB
Modem
Windows
wingate
Teleport
Windows / / /XP+Web server
Download

53. HUB
Modem
Windows Linux server
XP+Web
Gateway+Proxy+Intranet

54. HUB
Modem
Linux
Windows / /XP+Web serv
Intranet