2. 2
Web Browser)
Microsoft Internet Explorer (IE), Mozilla Firefox, Opera
HTML
HTML Hypertext Markup Language
Domain Name)
Domain Name)
sanook.com yahoo.com
com
edu
gov
mit
net
Commercial)
Education)
Government)
www.ibm.com
www.chula.edu
www.whitehouse.gov
www.dtic.mil
www. pnfa.net