2. Lectures and Practicals Mon 8-10 SC1222 TUE 13-15 SC1222 Office: SC1421 email: ksinmai@hotmail.comksinmai@hotmail.com Website: mis.csit.sci.tsu.ac.th/kanida

5. Why?

6. History of the internet

9. WWW

10. Internet map https://en.wikipedia.org/wiki/File:Internet_map_1024.jpg

11. Internet Internet is a network of computer networks Data is transmitted by packet switching using the standard Internet Protocol (IP) Packet – a unit of information carriage Packet switching – process of moving packets from one node (computer device) to another

12. Internet Services Email Web (World Wide Web) FTP (File Transfer Protocol) Instance massaging etc.

15. Major Components Web Clients: web browsers e.g. IE, Chrome, Firefox Web Servers: IIS, Apache DNS (Domain Name System): – IP Address HTTP (HyperText Transfer Protocol) Protocol for the web HyperText Static and dynamic content

16. DNS working

17. URLs (Uniform Resource Locator) Web Address https://en.wikipedia.org/wiki/Domain_Name_System DNS: en.wikipedia.org

18. URLs (Uniform Resource Locator) The elements in a URL:Protocol://server's address/filename Hypertext protocol: http://www.aucegypt.edu Gopher protocol: gopher://gopher.umm.tc.edu File Transfer Protocol: ftp://ftp.dartmouth.edu Telnet Protocol: telnet://pac.carl.org