The Internet and the World The Internet and the World Wide WebWide Web

Renee Roland, Dan Waters, Renee Roland, Dan Waters, Amelia WrightAmelia Wright

The InternetThe Internet

Internet (aka the Net)Internet (aka the Net)

UsageUsage– More than half a billion usersMore than half a billion users

Most common usesMost common uses– World Wide Web and e-mailWorld Wide Web and e-mail

HistoryHistory

1969: ARPANET1969: ARPANET– Linked scientists and academic researchersLinked scientists and academic researchers

1986: NSFnet connected to ARPANET1986: NSFnet connected to ARPANET

Together the two became the InternetTogether the two became the Internet

Until 1995Until 1995– NSFnet handled most trafficNSFnet handled most traffic– 1995: terminated its network and returned to a 1995: terminated its network and returned to a

research network research network

The Internet TodayThe Internet Today

Public, Cooperative, and IndependentPublic, Cooperative, and Independent– World Wide Web Consortium sets standardsWorld Wide Web Consortium sets standards

Internet 2Internet 2– Focus is on improving current internetFocus is on improving current internet– Develops and tests advanced technologiesDevelops and tests advanced technologies

Professionals able to communicate over long Professionals able to communicate over long distancesdistances

ConnectingConnecting

Dial-upDial-up– Modem and telephone lineModem and telephone line

Cable modemCable modem– Through cable television networkThrough cable television network

DSL and ISDNDSL and ISDN– Copper telephone linesCopper telephone lines

AccessingAccessing

Access providerAccess provider– Free or for a feeFree or for a fee

Internet Service Provider (ISP)Internet Service Provider (ISP)– Regional or national accessRegional or national access

Online Service Provider (OSP)Online Service Provider (OSP)– Internet access plus member only featuresInternet access plus member only features

Wireless Internet Service Provider (WISP)Wireless Internet Service Provider (WISP)– Wireless modems and mobile devicesWireless modems and mobile devices

IP AddressIP Address

IP AddressIP Address– Unique number, identifies each connected Unique number, identifies each connected

computercomputer

Domain nameDomain name– Text version of IP AddressText version of IP Address

DNS serverDNS server– Translates domain name into IP addressTranslates domain name into IP address

World Wide Web ComponentsWorld Wide Web Components

WWWWWW– Worldwide collection of electronic documentsWorldwide collection of electronic documents

Web pageWeb page– Each single documentEach single document

Web address (URL)Web address (URL)– Unique address for each web pageUnique address for each web page

Web BrowserWeb Browser

Web BrowserWeb Browser– Allows users to access and view web pagesAllows users to access and view web pages

Web ServerWeb Server– Computer that delivers web pages to your Computer that delivers web pages to your

computercomputer

LinkLink– Built-in connection to related web pageBuilt-in connection to related web page

Searching for InformationSearching for Information

Search engineSearch engine– Program that finds web pages and web sitesProgram that finds web pages and web sites

Search textSearch text– Typed keywords in search engine’s text boxTyped keywords in search engine’s text box

HitsHits– Web pages that contain the search textWeb pages that contain the search text

Web SiteWeb Site– Collection of related web pages and Collection of related web pages and

associated itemsassociated items

Types of Web SitesTypes of Web Sites

PortalPortal– Offers variety of services from one locationOffers variety of services from one location

NewsNews– Contains newsworthy materialContains newsworthy material

InformationalInformational– Contains factual informationContains factual information

Business/MarketingBusiness/Marketing– Promotes or sells products or servicesPromotes or sells products or services

Types of Web Sites Cont.Types of Web Sites Cont.

EducationalEducational– Offers avenues for formal and informal Offers avenues for formal and informal

teachingteaching

EntertainmentEntertainment– Interactive and engaging environmentInteractive and engaging environment

AdvocacyAdvocacy– Describes cause, opinion, or ideaDescribes cause, opinion, or idea

PersonalPersonal– Maintained by private individual or familyMaintained by private individual or family

Evaluating a Web SiteEvaluating a Web Site

Not all information is true and accurate!Not all information is true and accurate!What to look for:What to look for:– AffiliationAffiliation– AudienceAudience– AuthorityAuthority– ContentContent– CurrencyCurrency– DesignDesign– objectivityobjectivity

Web Page MultimediaWeb Page Multimedia

MultimediaMultimedia– Combines text with graphics, animation, Combines text with graphics, animation,

audio, video, and/or virtual realityaudio, video, and/or virtual reality

GraphicGraphic– Digital representation of non-text informationDigital representation of non-text information– Ex: drawing, chart, photographEx: drawing, chart, photograph

AnimationAnimation– Appearance of motionAppearance of motion

Web Page Multimedia Cont.Web Page Multimedia Cont.

AudioAudio– Music, speech, or any soundMusic, speech, or any sound

VideoVideo– Full-motion imagesFull-motion images

Virtual RealityVirtual Reality– Use of computers to simulate real or imagined Use of computers to simulate real or imagined

environment environment – 3D3D

Downloading MusicDownloading Music

Go to a music websiteGo to a music website– Search for, select, and pay for the musicSearch for, select, and pay for the music

Download the music to your hard diskDownload the music to your hard disk

Listen to the music from your hard diskListen to the music from your hard disk

Plug-insPlug-ins

Plug-in: extends capability of a browserPlug-in: extends capability of a browser

Popular Plug-ins:Popular Plug-ins:– Acrobat ReaderAcrobat Reader– Flash PlayerFlash Player– QuickTimeQuickTime– RealOne PlayerRealOne Player– Shockwave PlayerShockwave Player– Windows Media PlayerWindows Media Player

Types of E-CommerceTypes of E-CommerceE-CommerceE-Commerce– Business transaction over an electronic Business transaction over an electronic

networknetwork

Business to ConsumerBusiness to Consumer– Sale of goods and services to general publicSale of goods and services to general public

Consumer to ConsumerConsumer to Consumer– One consumer sells directly to anotherOne consumer sells directly to another– Ex: E-bayEx: E-bay

Business to BusinessBusiness to Business– Businesses exchange goodsBusinesses exchange goods

Web Page CommunicationWeb Page Communication

E-mailE-mail– transmission of messages and files via the computer transmission of messages and files via the computer

networknetwork

FTP ( File Transfer Protocol) FTP ( File Transfer Protocol) – An Internet standard that permits file uploading and An Internet standard that permits file uploading and

downloading with other computersdownloading with other computers

NewsgroupNewsgroup– an online area where users have written about a an online area where users have written about a

certain subjectcertain subject

Message BoardMessage Board– a popular Web-based type of discussion groupa popular Web-based type of discussion group

Communication ContinuedCommunication Continued

Mailing ListMailing List– a group of e-mail names and addresses given a a group of e-mail names and addresses given a

single name so all can receive the messagesingle name so all can receive the message

Chat RoomsChat Rooms– A location on the internet server that permits users to A location on the internet server that permits users to

chat or conduct real-time typed conversationschat or conduct real-time typed conversations

Instant MessagingInstant Messaging– Real-time internet communications service that Real-time internet communications service that

notifies you when one or more people are onlinenotifies you when one or more people are online

NetiquetteNetiquette

Netiquette or Internet Etiquette Netiquette or Internet Etiquette – a code of acceptable behaviors to be followed a code of acceptable behaviors to be followed

on the Internet.on the Internet.

Rules of NetiquetteRules of Netiquette– Keep messages shortKeep messages short– Be polite Be polite – Do not assume material is accurate or up to Do not assume material is accurate or up to

datedate– Never read someone’s private E-mailNever read someone’s private E-mail

What is Web Publishing?What is Web Publishing?

Web publishingWeb publishing is the is the developmentdevelopment and and maintenancemaintenance of Web Pages. of Web Pages.

WebmasterWebmaster or Web developer maintains or Web developer maintains a Web using software productsa Web using software products

Five major steps to web publishingFive major steps to web publishing

Plan a WebsitePlan a Website

Identify the purpose Identify the purpose of the websiteof the website

Characteristics of the Characteristics of the people who would people who would want to visit the want to visit the websitewebsite

Determine ways to Determine ways to differentiate your differentiate your website from otherswebsite from others

Analyze and Design a Web SiteAnalyze and Design a Web Site

Determine specific way to meet the goals Determine specific way to meet the goals identified in planningidentified in planning

Design layoutDesign layout– Text, graphics, audio, video, and virtual realityText, graphics, audio, video, and virtual reality

Obtain required hardwareObtain required hardware