Chapter 2 the internet and world wide web
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Chapter 2 The Internet and World Wide Web. Chapter 2 Objectives. Describe the types of e-commerce. Next. Explain how to access and connect to the Internet. Explain how to view pages and search for information on the Web.

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Chapter 2 the internet and world wide web

Chapter 2The Internet and World Wide Web


Chapter 2 objectives

Chapter 2 Objectives

Describe the types of e-commerce

Next

Explain how to access andconnect to the Internet

Explain how to view pages and searchfor information on the Web

Explain how e-mail, FTP, newsgroupsand message boards, mailing lists, chat rooms,Instant messaging, and Internet telephony work

Describe the types of Web sites

Identify the rules of netiquette

Identify the steps requiredfor Web publishing


The internet

The Internet

Next

  • What are some services found on the Internet?

p. 50 - 51 Fig. 2-1


The internet1

The Internet

Goal:To allow scientists at different locations to share information

Goal:To function if part of network were disabled

Became functional September 1969

Next

  • How did the Internet originate?

p. 50


The internet2

The Internet

Today

More than 350 million computer linked hosts

1984

More than 1,000 hosts

1969

Four hosts

Next

  • How has the Internet grown?

p. 50


The internet3

The Internet

World Wide Web Consortium (W3C)

  • Oversees research, sets standards and guidelines

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

then click W3Cbelow Chapter 2

Next

  • Who controls the Internet?

  • No onec—cit is a public, cooperative, andindependent network

  • Several organizations set standards

p. 51


How the internet works

How the Internet Works

Next

  • How can you connect to the Internet?

Slow-speed technology

High-speed connection

Dial-up accessmodem in your computer uses a standard telephone line to connect to the Internet

DSL, cable modem,fixed wireless, Wi-Fi, and satellite modems

Connection must be established each time you log on. Slow but inexpensive

Connection is always on—whenever the computer is running

p. 51 - 52


How the internet works1

How the Internet Works

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

then click Wireless Internet Service Providers below Chapter 2

Next

  • What are ways to access the Internet?

  • ISP, regional or national

  • OSP (AOL and MSN, for example)

  • Wireless Internet Service Provider

p. 52


How the internet works2

How the Internet Works

Next

  • How might data travel the Internet using acable modem connection?

p. 53 Fig. 2-2


How the internet works3

How the Internet Works

Next

  • What is a domain name?

  • Text version ofInternet protocol (IP) address

  • Number that uniquely identifies each computer or device connected to Internet

p. 53 - 54 Figs. 2-3 – 2-4


The world wide web

The World Wide Web

A worldwide collection of electronic documents

Also called the Web

Each electronic document is called a Web page

Can contain text, graphics, audio, video, and built-in connections

A Web site is a collection of related Web pages

Next

  • What is the World Wide Web (WWW)?

p. 54


The world wide web1

The World Wide Web

MicrosoftInternetExplorer

Firefox

Netscape

Opera

Safari

Next

  • What is a Web browser?

  • Program that allows you to view Web pages

p. 54


The world wide web2

The World Wide Web

Step 2.Web browser looks up the home page setting

Step 1.Click the Web browser program name

Step 4.The home page displays in the Web browser

Next

  • How does a Web browser display a home page?

Step 3.The Web browser communicates with the access provider’s server to retrieve the IP address. The IP address is sent to your computer.

p. 55 Fig. 2-5


The world wide web3

The World Wide Web

Next

  • What is a home page?

  • The first page that a Web site displays

  • Often provides connections to other Web pages

  • What is downloading?

  • The process of a computer receiving information

  • Depending upon connection speed, downloading can take from a few seconds to several minutes

  • What is tabbed browsing?

  • The top of the browser displays a tab for each Web page you open

p. 55


The world wide web4

The World Wide Web

Next

  • What is a URL?

Unique address for a Web page

  • A web server delivers the Web page to your computer

p. 56 Fig. 2-6


The world wide web5

The World Wide Web

Next

  • What is a hyperlink (link)?

  • Built-in connection to another related Web page

  • Item found elsewhere on same Web page

  • Different Web page at same Web site

  • Web page at a different Web site

p. 57


The world wide web6

The World Wide Web

Next

  • How can you recognize links?

  • Pointer changes to a small handwhen you point toa link

  • A link can be text or an image

  • Text links areusually underlinedand in a differentcolor

p. 57 Fig. 2-7


The world wide web7

The World Wide Web

Next

  • What is a search engine?

  • Program used to find Web sites and Web pages by entering words or phrases called search text

p. 57 - 60 Fig. 2-8


The world wide web8

The World Wide Web

Next

  • What is a subject directory?

  • Search tool with organized set of topics and subtopics

  • Lets you find information by clicking links rather than entering keywords

p. 58 – 59


The world wide web9

The World Wide Web

Next

  • What is a hit?

  • Any Web site name that is listed as the result of a search

p. 60 Fig. 2-10


The world wide web10

The World Wide Web

Next

  • What are the twelve basic types of Web sites?

Portal

News

Informational

Business/Marketing

Educational

Entertainment

Advocacy

Blog

Wiki

SocialNetwork

ContentAggregator

Personal

p. 61 – 63


The world wide web11

The World Wide Web

Next

  • What are the guidelines for evaluating the value of a Web site?

Affiliation

Audience

Authority

Content

Currency

Design

Objectivity

p. 63 Fig. 2-12


The world wide web12

The World Wide Web

Next

  • What is multimedia?

  • Application integrating text with other media elements

  • Graphics

  • Animation

  • Audio

  • Video

  • Virtual reality

  • Plug-ins

p. 64 - 66 Fig. 2-13


The world wide web13

The World Wide Web

Next

  • What is a thumbnail?

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

  • Usually click on thumbnail to display larger image

p. 64


The world wide web14

The World Wide Web

Next

  • What is animation?

  • Appearance of motion created bydisplaying a series of still imagesin sequence

p. 64


The world wide web15

The World Wide Web

Next

  • What is audio?

  • 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

p. 64 - 65 Fig. 2-14


The world wide web16

The World Wide Web

Next

  • What is streaming audio?

  • Transfers data in a continuous and even flow

  • Enables you to listen to the sound as it downloads to your computer

p. 64


The world wide web17

The World Wide Web

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

then click YouTubebelow Chapter 2

Next

  • What is video?

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

  • MPEG (Moving Pictures Experts Group) is popular video compressionstandard

p. 65


The world wide web18

The World Wide Web

CLICK TO START

Next

Video: Tell Your Stores via Vlog


The world wide web19

The World Wide Web

Next

  • What is virtual reality (VR)?

  • 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

p. 65


The world wide web20

The World Wide Web

Next

  • What are plug-ins?

  • Programs that extend the capability of a browser

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

p. 66 Fig. 2-15


Web publishing

Web Publishing

Step 2.Analyze and design the Web site

Step 1.Plan the Web site

Step 3.Create the Web site

Step 5.Maintain the Web site

Step 4.Deploy the Web site

Next

  • What is Web publishing?

  • Development and maintenance of Web pages

p. 66 - 67 Fig. 2-16


E commerce

E-Commerce

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

then click PayPalbelow Chapter 2

Next

  • What is E-Commerce?

  • Short for electronic commerce

  • Business transaction that occurs over the Internet

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

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

Business to business (B2B)Business providing goods andservices to other businesses

p. 67 - 68 Fig. 2-17


Other internet services

Other Internet Services

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

then click E-Mail below Chapter 2

Next

  • What is e-mail?

  • 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, or audio/video clips

    • Internet access providers usually provide an e-mail program

p. 69 - 70


Other internet services1

Other Internet Services

Next

  • How do you send an e-mail message?

p. 69 Fig. 2-18


Other internet services2

Other Internet Services

Next

  • What is an e-mail address?

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

p. 70 Fig. 2-19


Other internet services3

Other Internet Services

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

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

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 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

Next

  • How does an e-mail message travel?

p. 70 Fig. 2-20


Other internet services4

Other Internet Services

Next

  • What is FTP?

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

p. 71


Other internet services5

Other Internet Services

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

then click Newsgroups and Message Boards below Chapter 2

Next

  • What are newsgroupsandmessage boards?

  • Newsgroup

  • Online area where users discuss a particular subject

  • Message board

  • Type of discussion group

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

p. 71 Fig. 2-21


Other internet services6

Other Internet Services

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

then click Mailing Listsbelow Chapter 2

Next

  • What is a mailing list?

  • 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

p. 71


Other internet services7

Other Internet Services

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

then click Chat Roomsbelow Chapter 2

Next

  • What is a chat?

  • 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

p. 71 - 72 Fig. 2-22


Other internet services8

Other Internet Services

Next

  • What is instant messaging (IM)?

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

p. 72 Fig. 2-23


Other internet services9

Other Internet Services

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

then click Internet Telephonybelow Chapter 2

Next

  • What is internet telephony?

  • Enables users to speak to other users over the Internet using their computer

p. 73 Fig. 2-24


Netiquette

Netiquette

Next

  • What is netiquette?

  • Code of acceptable behaviors users should follow while on the Internet

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

p. 73


Summary of the internet and world wide web

Summary of the Internet and World Wide Web

History and structure of the Internet

Newsgroups and Message Boards

Chat Rooms and Instant Messaging

The World Wide Web

Internet Telephony

E-Mail

FTP

Netiquette

Chapter 2 Complete


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