The Internet and World The Internet and World Wide WebWide Web

By: Shilpa Phanse10/8/2008

The InternetThe InternetWorldwide collection of networksGoal was to:

◦Be able to share information◦Function at different locations

Host or Server◦A computer◦Provides services and connections

Connectivity of InternetConnectivity of InternetDial up access (telephone lines)DSL (digital subscriber line) (telephone

lines)A cable (cable television) Fiber to the premises (FTTP) (fiber

optics)Wi-Fi (Wireless fidelity) radio signal

transmission◦Hot Spot

Wireless modem (cellular network)Satellite (satellite dish communications)

Access ProvidersAccess ProvidersInternet Service provider (ISP)

◦AT&T, EarthLinkOnline Service Providers (OSP)

◦ Internet and other services◦News, weather, game software use, photo

sharing, IM’s, online calendars◦AOL and MSN

Wireless Internet Service Provider (WISP)◦Wireless Internet Access to PDAs, smart

phones

InternetInternetAddress

◦IP Address 123.123.12.12◦Domain name www.google.com

Electronic document◦World Wide Web (Service on

internet)◦Web page◦Web site: Collection of web

documents◦Web Server

WebWebBrowsing the web

◦Web Browser (IE, Firefox)◦Home Page◦URL (Uniform Resource Locator) or Web

Address◦Protocol, domain, file◦HTTP (Hypertext Transfer Protocol)◦Navigation

Hyperlink or link Tabbed browsing Search Engines Subject Directories

Types of Web SitesTypes of Web SitesPortalNews InformationalBusiness/MarketingEducationalEntertainmentAdvocacyBlogWiki (allows editing, collaborative)Media Sharing websiteContent Aggregator (RSS feed)Personal

Web PublishingWeb PublishingPlan a web siteAnalyze and design a web siteCreate a web siteDeploy a web siteMaintain a web site

The World Wide WebThe World Wide WebWhat is a thumbnail?

p. 64 Next

Small version of a larger graphic image—used to improve Web page display time Usually click

on thumbnail to display larger image

The World Wide WebThe World Wide WebWhat is animation?

p. 64 Next

Appearance of motion created bydisplaying a series of still imagesin sequence

The World Wide WebThe World Wide WebWhat is audio?

p. 64 - 65 Fig. 2-14 Next

Music, speech, or any other sound Individual compressed sound files

that you download from the Web to your computer

Once downloaded, you can play (listen to) the contents of the files

A podcast is recorded audio, usually an MP3 file, stored on a Web site that can be downloaded to a computer or a portable media player

The World Wide WebThe World Wide WebWhat is streaming audio?

p. 64 Next

Transfers data in a continuous and even flow Enables you to listen to the sound as it downloads to

your computer

The World Wide WebThe World Wide WebWhat is video?

p. 65 Next

Consists of full-motion images, most with sound,played back at various speeds

MPEG (Moving Pictures Experts Group) is popular video compressionstandard

The World Wide WebThe World Wide WebWhat is virtual reality (VR)?

p. 65 Next

Use of computers to simulate a real or imagined environment

Appears as a three dimensional (3-D) space Used for games and many

practical applications

The World Wide WebThe World Wide WebWhat are plug-ins?

p. 66 Fig. 2-15 Next

Programs that extend the capability of a browser

You can download many plug-ins at nocost from variousWeb sites

Web PublishingWeb PublishingWhat is Web publishing?

p. 66 - 67 Fig. 2-16 Next

Development and maintenance of Web pages

Business to business (B2B)Business providing goods and

services to other businesses

Consumer to consumer (C2C)One consumer sells directly to another

E-CommerceE-CommerceWhat is E-Commerce?

p. 67 - 68 Fig. 2-17 Next

Business to consumer (B2C)Sale of goods to general public

Short for electronic commerce Business transaction that occurs

over the Internet

Other Internet ServicesOther Internet ServicesWhat is e-mail?

p. 69 - 70 Next

Short for electronic mail The transmission of messages and files via a computer

network Messages can consist of simple text or can contain attachments,

such as documents, graphics, audio, or video clips Internet access providers usually provide an e-mail program

Other Internet ServicesOther Internet ServicesHow do you send an e-mail message?

p. 69 Fig. 2-18 Next

Other Internet ServicesOther Internet ServicesWhat is an e-mail address?

p. 70 Fig. 2-19 Next

Name that consists of a user name and domain name that identifies the user

Other Internet ServicesOther Internet ServicesHow does an e-mail message travel?

p. 70 Fig. 2-20 Next

Step 4.When recipient uses e-mail software to check for e-mail messages, the message transfers from incoming mail server to recipient’s computer

Step 2.Your software contacts software on your service provider’s outgoing mail server

Step 3.Software on outgoing mail server determines best route for data and sends message, which travels along Internet routers to recipient’s incoming mail server

Step 1.Using e-mail software, you create and send a message

Other Internet ServicesOther Internet ServicesWhat is a mailing list?

p. 71 Next

Group of e-mail names and addresses given a single name

When a message is sent to the mailing list, everyone on the list receives the message

To add your name to a mailing list you must subscribe to it; to remove your name you must unsubscribe

Click to view Web Link,click Chapter 2, Click Web Linkfrom left navigation, then click Mailing Listsbelow Chapter 2

Other Internet ServicesOther Internet ServicesWhat is instant messaging (IM)?

p. 71 Fig. 2-21 Next

A real-time Internet communications service that notifies you when one or more people are online and allows you to exchange messages or files

Other Internet ServicesOther Internet ServicesWhat is a chat?

p. 71 - 72 Fig. 2-22 Next

Real-time typed conversation that takes place on a computer

Chat room is a location on an Internet server that permits users to discuss topics of interest

Click to view Web Link,click Chapter 2, Click Web Linkfrom left navigation, then click Chat Roomsbelow Chapter 2

Other Internet ServicesOther Internet Services

What is VoIP? Enables users to speak to other users over the Internet using their computer

Nextp. 72 Fig. 2-23

Other Internet ServicesOther Internet ServicesWhat is FTP?

p. 72 Next

File Transfer Protocol—Internet standard that permits you to upload and download files with other computers on the Internet

Other Internet ServicesOther Internet ServicesWhat are newsgroups and message boards?

p. 73 Fig. 2-24 Next

Newsgroup

Many Web sites use message boards because they are easier to use

Online area where users discuss a particular subject

Message board Type of discussion group

NetiquetteNetiquetteWhat is netiquette?

p. 73 Fig. 2-25 Next

Golden Rule: Treat others as you would like them to treat you.

Code of acceptable behaviors users should follow while on the Internet