THE INTERNET AND THE WORLD WIDE WEB. INTERNET INTERNET - short term for interconnected networks, is a global network of computers tied together to share.

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Presentation transcript:

THE INTERNET AND THE WORLD WIDE WEB

INTERNET INTERNET - short term for interconnected networks, is a global network of computers tied together to share information and other resources. Also called as the net, the web, the cyberspace or the information highway.

Internet Roots U.S. Defense Advanced Research Projects Agency - linked four computers using telephone wires and call it DARPANET (and soon called ARPANET). Robert Kahn (1972) - exhibits the first public demonstration of the ARPANET at the International Computer Communication Conference. SNDMSG and READMAIL - Ray Tomlinson

Internet Roots National Science Foundation - linked 5 supercomputer centers and called it NSFNET. ARPANET splits in two separate entities: MILNET to serve the needs of national defense and military communication; ARPANET which is primarily utilized by academics and researchers. Domain Name System - Paul Mockapetris, Jon Postel and Craig Partridge. Host names (x.com) and User names ARPA six domain names:.edu,.gov,.mil,.com,.net,.org.

Internet Usage Knowledge Navigation Electronic Mail File Exchange or Transfer Discussion Groups or Chat Live Conferencing Online Gaming Shopping

WORLD WIDE WEB Web – multimedia-based collection of information, services, and sites supported by the Internet – Interface you see and work with Internet – vast network of computers that connects millions of people all over the world – Infrastructure that makes the Web possible

Web Sites, Addresses, and Pages Web site – Web location where you visit, gather information, order products, etc – USA Today Web site address – unique name for a Web site – – Also called a domain name

Web Sites, Addresses, and Pages Web site address or domain name

Top-Level Domains com – commercial or for- profit business coop – cooperative edu – educational institution gov – government agency mil – military organization net – Internet administrative organization int – International treaties organization info – general information biz – business museum – accredited museum name – personal pro – Accountant, doctor, lawyer, etc. Many more

Web Browser Software Web browser software – enables you to surf the Web Three most popular – Internet Explorer (Microsoft) – Firefox (Mozilla) – Chrome (Google)

Web Browser Software

WEB 2.0 Web 2.0 (Live Web) – second generation of the Web; focuses on online collaboration, users as both creators and modifiers of content, dynamic and customized information feeds, etc. – Wikis – Social networking sites – Blogs – RSS feeds – Podcasting – Many others

Internet Technologies Internet Service Provider (ISP) – provides access to the Internet – PLDT – Globe – Smart – Digitel

Internet Servers

Connecting To The Internet You do it through an ISP ISPs can be free, charge a monthly fee, charge a per- minute fee, etc Many offer Web space – storage area where you keep your Web site

Communications Software Connectivity software – connect to your ISP Web browser software – to surf the Web – electronically communicate with

Telecommunications Hardware Telephone modem – connects your computer via a phone line (slow) DSL – uses phone lines but supports simultaneous phone calls (fast) Cable modem – uses your cable TV service (fast) Satellite modem – Internet access through satellite dish (fast)

Telecommunications Hardware