18. DNS Domain Name Server
DNS Domain Name
Server
IP
Address
DNS
19. DNS Domain Name Server
.com commercial
.edu education
.int International Organization
.org Organization
.org Organization
20. DNS Domain Name Server
th
.ac.th Academic Thailand
.co.th Company Thailand
.go.th Government Thailand
.net.th Network Thailand
.or.th Organization Thailand
21. WWW World Wide Web
World Wide Web WWW
World Wide Web
(Multimedia) ,
, , , Hypertext