3rd Summary

First, keypoints until now
1. When technologies connect or separate people, they become media.

2. Technologies embody social, political, cultural, economic and philosophical ideas and relationships.

3. When a medium is new, it is often used to simulate old media.

4. New media do not replace old media, they displace them.
and today's keypoints 'People make media and then media make people.'

Tim berners-lee?
tim berners-lee is father of the internet and then he has many employment. senior research scientist, laboratory for computer science (lcs), mit; and etc...

What is www?
1. A collaboratively authored hypertext.
2. It is a standard.
3. The www is a vast, heterogeneous network of people and machines.

www is World Wide Web. it looks like spider-web and connect another section.

I learned ISO, IETF, RFC, ETC...

ISO is International Organization for Standardization. and then a network of national standards institutes from 145 countries working in partnership with international organizations, governments, industry, business and consumer representatives. It acts as a bridge between public and private sector. It has created over 12,000 standards.

ietf is internet engineering task force. IETF is a large open international community of network designers, operators, vendors, and researchers concerned with the evolution of the Internet architecture and the smooth operation of the Internet. It is open to any interested individual.

rfc is request for comments. each distinct version of an Internet standards-related specification is published as part of the "Request for Comments" (RFC) document series. This archival series is the official publication channel for Internet standards documents and Internet community.

What is URI?
URI is Universal Resource Identifier. URI is include URL that we common know.
for example>>
http://www.naver.com/
mailto:mjm8903@nate.com
etc...

What is HTML?
HTML is hypertext markup language. HTML is derived from sgml and try [view] --> [source] in your web browser. but, at present, many site protect there's source.