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The Internet and the World Wide Web Renee Roland, Dan Waters, Amelia Wright The Internet Internet (aka the Net) Usage More than half a billion users Most common uses World Wide Web and e-mail History 1969: ARPANET Linked scientists and academic researchers

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The internet and the world wide web l.jpg

The Internet and the World Wide Web

Renee Roland, Dan Waters, Amelia Wright


The internet l.jpg
The Internet

  • Internet (aka the Net)

  • Usage

    • More than half a billion users

  • Most common uses

    • World Wide Web and e-mail


History l.jpg
History

  • 1969: ARPANET

    • Linked scientists and academic researchers

  • 1986: NSFnet connected to ARPANET

  • Together the two became the Internet

  • Until 1995

    • NSFnet handled most traffic

    • 1995: terminated its network and returned to a research network


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The Internet Today

  • Public, Cooperative, and Independent

    • World Wide Web Consortium sets standards

  • Internet 2

    • Focus is on improving current internet

    • Develops and tests advanced technologies

      • Professionals able to communicate over long distances


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Connecting

  • Dial-up

    • Modem and telephone line

  • Cable modem

    • Through cable television network

  • DSL and ISDN

    • Copper telephone lines


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Accessing

  • Access provider

    • Free or for a fee

  • Internet Service Provider (ISP)

    • Regional or national access

  • Online Service Provider (OSP)

    • Internet access plus member only features

  • Wireless Internet Service Provider (WISP)

    • Wireless modems and mobile devices


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IP Address

  • IP Address

    • Unique number, identifies each connected computer

  • Domain name

    • Text version of IP Address

  • DNS server

    • Translates domain name into IP address


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World Wide Web Components

  • WWW

    • Worldwide collection of electronic documents

  • Web page

    • Each single document

  • Web address (URL)

    • Unique address for each web page


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Web Browser

  • Web Browser

    • Allows users to access and view web pages

  • Web Server

    • Computer that delivers web pages to your computer

  • Link

    • Built-in connection to related web page


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Searching for Information

  • Search engine

    • Program that finds web pages and web sites

  • Search text

    • Typed keywords in search engine’s text box

  • Hits

    • Web pages that contain the search text

  • Web Site

    • Collection of related web pages and associated items


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Types of Web Sites

  • Portal

    • Offers variety of services from one location

  • News

    • Contains newsworthy material

  • Informational

    • Contains factual information

  • Business/Marketing

    • Promotes or sells products or services


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Types of Web Sites Cont.

  • Educational

    • Offers avenues for formal and informal teaching

  • Entertainment

    • Interactive and engaging environment

  • Advocacy

    • Describes cause, opinion, or idea

  • Personal

    • Maintained by private individual or family


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Evaluating a Web Site

  • Not all information is true and accurate!

  • What to look for:

    • Affiliation

    • Audience

    • Authority

    • Content

    • Currency

    • Design

    • objectivity


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Web Page Multimedia

  • Multimedia

    • Combines text with graphics, animation, audio, video, and/or virtual reality

  • Graphic

    • Digital representation of non-text information

    • Ex: drawing, chart, photograph

  • Animation

    • Appearance of motion


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Web Page Multimedia Cont.

  • Audio

    • Music, speech, or any sound

  • Video

    • Full-motion images

  • Virtual Reality

    • Use of computers to simulate real or imagined environment

    • 3D


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Downloading Music

  • Go to a music website

    • Search for, select, and pay for the music

  • Download the music to your hard disk

  • Listen to the music from your hard disk


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Plug-ins

  • Plug-in: extends capability of a browser

  • Popular Plug-ins:

    • Acrobat Reader

    • Flash Player

    • QuickTime

    • RealOne Player

    • Shockwave Player

    • Windows Media Player


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Types of E-Commerce

  • E-Commerce

    • Business transaction over an electronic network

  • Business to Consumer

    • Sale of goods and services to general public

  • Consumer to Consumer

    • One consumer sells directly to another

    • Ex: E-bay

  • Business to Business

    • Businesses exchange goods


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Web Page Communication

  • E-mail

    • transmission of messages and files via the computer network

  • FTP ( File Transfer Protocol)

    • An Internet standard that permits file uploading and downloading with other computers

  • Newsgroup

    • an online area where users have written about a certain subject

  • Message Board

    • a popular Web-based type of discussion group


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Communication Continued

  • Mailing List

    • a group of e-mail names and addresses given a single name so all can receive the message

  • Chat Rooms

    • A location on the internet server that permits users to chat or conduct real-time typed conversations

  • Instant Messaging

    • Real-time internet communications service that notifies you when one or more people are online


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Netiquette

  • Netiquette or Internet Etiquette

    • a code of acceptable behaviors to be followed on the Internet.

  • Rules of Netiquette

    • Keep messages short

    • Be polite

    • Do not assume material is accurate or up to date

    • Never read someone’s private E-mail


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What is Web Publishing?

  • Web publishing is the development and maintenance of Web Pages.

  • Webmaster or Web developer maintains a Web using software products

  • Five major steps to web publishing


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Plan a Website

  • Identify the purpose of the website

  • Characteristics of the people who would want to visit the website

  • Determine ways to differentiate your website from others


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Analyze and Design a Web Site

  • Determine specific way to meet the goals identified in planning

  • Design layout

    • Text, graphics, audio, video, and virtual reality

  • Obtain required hardware


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