11

11-1Internet Internet

Internet IAB (Internet Architecture Board)IETF (Internet Engineering Task Force) IRTF (Internet Research Task Force) ISOC (Internet Society)InterNIC (Internet Network Information Center) ICANN (Internet Corporation for Assigned Names and Numbers)

11-2Internet

11-3TCP/IP

11-4Internet InternetIP (IP address)IPIPv4IPv6IP32100011001110000001111000101108140.112.30.22

IP32 (Network ID) (Host ID)

(subnet) Class ABClass BIP140.112.x.x50IP5050IP66506626 (64)

255.255.252.0/22 (/2222)140.112.4.1140.112.8.1IP140.112.7.2AND140.112.4.0

IP142.50.140.22142.50.185.57IP

1. IP

IP142.50.140.22255.255.224.0AND142.50.128.0IP142.50.185.57255.255.224.0AND142.50.160.0

IPIPv6IPv416IP1000:0000:0000:0000:1234:5648:9ABC:DEF0 (multicast)

11-4-2 (DNS) Internet (domain name) (DNS)DNScomedugovmilintnetorg

11-4-3 Internet (user account) (E-mail address) @ mail.ht.net.twjeanchenjeanchen@mail.ht.net.tw

11-5World Wide Web World Wide WebWWWW3WebWeb (for MACX WindowMS Windows) NCSA MosaicWebNCSA httpd

11-5-1 (hyperlink)

11-5-2URL ://[:]/[/ 2...]/

http://www.xbook.com.tw:100/Windows/project.html

(protocol)

Web

11-6 11-6-1 Web

11-6-2

11-6-3 HTMLXMLXSLCSS

VRMLDHTMLXHTMLJava Applet

ActiveX Control ()Script ()JavaScriptVBScript

ScriptCGI (Common Gateway Interface)PHP (PHP:Hypertext Preprocessor)JSP (JavaServer Pages)ASP (Active Server Pages)