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Internet and World Wide Web
Internet
Global interconnection of
computer networks
Uses common communication
protocols
World Wide Web
One service of Internet
Primary audiovisual component of
Internet
Other services
E-mail, Gopher, FTP
The Internet
Began as a Cold War military
communications network for missile defense commands
The Defense Advanced Research
Projects Agency began work in 1958
ARPANET (first fully
interconnected nationwide computer network) was created with 37 nodes by 1972 (most @
colleges)
Growth
USENET began as a bulletin board
for a range of topics
At first ARPANET rerouted
discussions as a form of censorship
Within five months the USENET
discussions multiplied; ARPANET started carrying them
Today USENET newsgroups discuss
topics from soap operas to hip hop music to Barbie to weird sexual behaviors
Growth
Telnet gave users ability to
connect to and control various computers from remote locations
Ethernet allows array of
computers to be connected into a single LAN (local area network)
West GA
AOL
Growth
By 1983, ARPANET had grown to
such a point that it was subdivided into MILNET and ARPANET
By 1985, the National Science
Foundation got involved and created NSFNET (the current backbone for the US
Internet)--ARPANET phased out by 1990 ("a happy victim of its own overwhelming
success")
1986-Internet officially born
The Beginning
Teletext
Large U.S. newspapers tried this
to get their foot in on the new medium of information services
One-way system that sent data to
TV
Videotext
Knight-Ridder and Times-Mirror
tried to develop the electronic newspaper
Lost millions of $$ on this
venture
Wired in America
U.S. took longer to get wired
than places like Britain and France
Government pushed development in
Europe
U.S. development spurred by
entrepreneurs
Compuserve, Prodigy, and AOL
Competitors in on line services
Became much more than bulletin
boards
ISPs Grow, Plans Fail
Between 1989 and 1992
E-mail around the globe
WWW developed (Tim Berners-Lee)
Mosaic web browser introduced
Local ISPs appeared and
challenged AOL, Prodigy
Local ISPs giving customers
greater access to WWW
AOL, Prodigy had to keep
customers and get new ones
WWW Growth
WWW grew at a phenomenal rate
1993-Nearly 2 million computer
hosts
1996-Nine million
Web pages increased at
unbelievable rate
HTML: HyperText Markup Language
Just set up page in HTML and you
have web page
Search Engines developed
Excite, Yahoo, AltaVista
Internet Basics
URL: Universal Resource Locator
Type in address and a request for
information is made through ISP to specific server housing the requested information
www for World Wide Web
FTP for File Transfer Protocol
Also need secondary domain name
(nba)
Then a primary domain name (.com)
www.nba.com
Domains
Initial top-level domains
.com - business (originally)
.edu - education
.gov - federal government
.org - organizations (many
non-profit)
New domains
.arts - cultural and
entertainment entities
.nom - private individuals
.info - for information services
E-mail, Browsers, etc.
E-mail packages abound
Netscape Navigator and
Microsoft’s Internet Explorer are the top browsers
Plug-ins
Let you display unique graphics,
photos or animations
Java, Shockwave, Macromedia
Modems and Portals
Modems
Like pulling an elephant through
a straw
Download times have increased
ISDN (Integrated Services Digital
Network)
Ethernet connections
Cable modems (fastest)
Portals (entrance/gateway)
Starting place for your
cyberjourney
Ex. Your Home page, Yahoo!,
Netscape
Virtual Communities
Virtual community is a place
people congregate, chat, and share ideas
AOL chat rooms (leader)
Delphi (discussions without
special software)
Geocities.com (free Web sites and
e-mail)
Tripod.com (divided into 14 broad
categories-sports, travel, business, etc.)
Making Money
How to make $$ on the Web
Sell connections (ISPs)
Sell space for ads
Sell goods via catalog or auction
(e-bay)
Internet companies must diversify
into new areas to make $$
Old and New Media
A relationship has been
established between TV and the Web
Cross-promotion (nbc.com to learn
more)
Interactivity (Dawson’s
Creek-read his e-mail and find out what other characters think about episode happenings)
ABC promotes Enhanced TV
Old and New Media
Traditional radio listeners have
decreased
Internet radio listeners have
increased
Can hear stations in other
markets
Radio sites offer concert info,
feedback line
Old and New Media
Traditional radio listeners have
decreased
Internet radio listeners have
increased
Can hear stations in other
markets
Radio sites offer concert info,
feedback line
Video streaming has poor quality
Will be some time before
broadcast quality is seen on Web
© B.L. Yates 2000
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