The World Wide Web and the Internet

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The World Wide Web and the Internet

• How Vast Is Your Virtual Imagination?
• Chapter 2

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Student Learning Outcomes

• Describe electronic commerce, the two primary
  types of e-commerce businesses, and the three
  primary e-commerce activities.
• Describe the relationships between Web terms,
  including Web site, Web page, Web site address
  (domain name), Web page address (URL), and
  top-level domain.
• Contrast the use of directory search engines and
  true search engines.

3
Student Learning Outcomes

• Describe the various types of Web multimedia
  formats and the software you need to enjoy Web
  multimedia.
• Identify four main options for an Internet
  service provider and your four choices for a
  modem.

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Introduction

• Electronic commerce allows businesses to reach
  more customers, distribute information quickly,
  establish strong and lasting relationships, and
  be innovative in how they perform all types of
  commerce. However, without the World Wide Web
  and the Internet this would not be possible.

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2.1 Electronic Commerce

• Technology enables you to
• Reach more customers
• Distribute information quickly
• Establish relationships
• Be innovative in commerce functions
• E-commerce is commerce that is facilitated and
  enhanced by technology

• SimNet Concepts Support CD
• Introduction to the Internet and the World Wide
  Web

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Types of E-Commerce Business

• Brick-and-Mortar Businesses
• Physical location only
• Performs no e-commerce functions
• Click-and-Mortar Businesses
• Presence in the physical world and a Web site
• Web site that supports e-commerce
• Example JCPenney

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Types of E-Commerce cont.

• Click-and-Order Business (pure plays)
• Exists solely on the Web with no physical
  presence
• Example
• Amazon.com

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Click-And-Mortar BusinessJCPenney
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Click-And-Order BusinessCD Quest
p.2.37 Fig. 2.1
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Types of E-Commerce Activities
Business to consumer (B2C)- Sale of products and
services to customers who are primarily
individuals
Business to business (B2B)- Sale of products and
services to customers who are primarily other
businesses
Consumer to consumer (C2C)- Individual sells
products and services to another person or
individual
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Business to Business (B2B)
p. 2.38 Fig 2.2
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Consumer to Consumer (C2C)

• Individuals sell products and services to other
  individuals
• Example eBay
• Click-and-order business
• Provides an electronic marketplace

• SimNet Concepts Support CD
• B2B and E-Commerce and E-Commerce and Shopping
  Online

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2.2 The World Wide Web

• Internet
• A vast network of computers that connects
• millions of people all over the world.

• World Wide Web (Web)
• A multimedia-based collection of information,
• services, and Web sites supported by the Internet.

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How Old is the Internet?

• Began with military research in 1957
• Connected computers formed ARPANet in 1969
• World Wide Web browsers created in 1991

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Web Sites, Pages, and Addresses

• Web browser software used to surf the Web
• Web site specific location on the Web
• Web page specific portion of a Web site
• Web site address unique name (domain name) for an
  entire Web site
• Web page address unique name (URL) for a Web page
  within a Web site

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Web Browser Software

• Two most popular Web browsers are

• SimNet Concepts Support CD Web Browsers

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USA Today Web Site
Web Site
Web Pages
p. 2.39 Fig 2.3
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Web Site Hierarchy
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The Anatomy of a URL

• SimNet Concepts Support CD Web Pages

p. 2.40 Fig 2.4
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Some Top-Level Domains
p.2.40 Fig. 2.4
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Using Search Engines

• Search Engine
• Facility on the Web
• Finds Web sites by key word or words
• Two main types
• Directory search engine
• Yahoo!
• True search engine
• Ask Jeeves

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True Search Engine Ask Jeeves
p. 2.41 Fig. 2-5
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Search Engines

• Mamma.com www.mamma.com
• AltaVista www.altavista.com
• HotBot www.hotbot.com
• Lycos www.lycos.com
• Webcrawler www.webcrawler.com

• SimNet Concepts Support CD Searching for
  Information on the Internet

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Enjoying Web Multimedia

• Web Multimedia
• The use of audio, video, animation, and other
  elements
• Allows interactivity on a Web site or page
• Helps businesses attract and retain customers

• SimNet Concepts Support CD Web Utilities
  Plug-Ins and Helper Applications

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Plug-Ins and Players

• Plug-Ins
• Software that works within your browser to play
  multimedia
• If not installed, will get a message
• Macromedia Flash, Shockwave

• Players
• Viewers
• Software that works outside your browser to play
  multimedia
• Windows Media, Player, RealNetworks RealPlayer

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Plug-Ins Players
p. 2.44 Fig. 2.7 2.8
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Multimedia Formats

• Web Audio
• Web audio all the sounds and music on the Web.
• Sounds are .wav (wave) or .au (audio) files
• Current browsers come equipped with plug-ins.

• Web Video
• Web video all the video footage on the Web
• QuickTime file formats or Windows AVI format
• Can view with plug-ins, QuickTime Media Player,
  or Windows Media Player

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Multimedia Formats

• Streaming Media
• Continually sends small parts of a large file to
  your Web browser
• Don't have to wait until entire file has been
  downloaded
• Works for audio or video files
• Use Windows Media Player, RealNetworks
  RealPlayer, or QuickTime Player

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Interactive Web Multimedia Flash Plug-In

• Flash is software that helps you create animated
  and interactive Web pages
• Flash plug-in enables you to view and interact
  with Flash-based Web pages
• Designed by Macromedia

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Interactive Web Multimedia Shockwave Player

• Shockwave is software that helps you create Web
  pages with significant interactivity through
  multimedia
• Designed by Macromedia
• Shockwave player enables you to view and interact
  with Shockwave-based Web pages (shocked pages)

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Interactive Web MultimediaVirtual Reality
Modeling Language

• VRML allows you to
• Participate in a virtual world in which you have
  the illusion that you are physically
  participating in the presentation of the Web
  multimedia
• Displays three-dimensional images, and a VRML
  player provides you with controls that allow you
  to turn the 3-D images and view them from
  different perspectives

• SimNet Concepts Support CD
• Virtual Reality and Artificial Intelligence

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2.3 The Internet Behind the Web

• Internet makes the Web possible
• Internet Technology
• Network
• Internet backbone
• Network access point (NAP)
• Network service provider (NSP)

• SimNet Concepts Support CD
• Introduction to the Internet and World Wide Web

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Internet Backbone
p. 2.47 Fig. 2.10
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Computers on the Internet

• Internet server computer (host computer)
• Computer that provides information and services
  to other computers and Internet users
• High-end work station, minicomputer, or mainframe
• Web client computer
• Computer used to surf the Internet and access
  information and services on a server computer
• Desktop, notebook, smart phone, PDA, or tablet PC

• SimNet Concepts Support CD Internet Appliances

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Types of Servers on the Internet

• Web server provides information and services to
  Web surfers
• FTP server maintains a collection of files that
  can be downloaded
• IRC server supports use of discussion groups and
  chat rooms
• Mail server provides e-mail services and accounts

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FTP Server ZDNet
p. 2.48 Fig. 2.11
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Information on the Internet

• Communications protocol
• A set of rules that every computer follows to
  transfer information
• Different types of computers handle information
  in different forms
• To communicate effectively, computers must have
  common protocols for moving information among
  themselves on the Internet

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Internet Protocols
TCP/IP
http
FTP
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Protocols

• TCP/IP (Transfer Control Protocol/Internet
  Protocol)
• Basic protocol that makes the Internet work
• Hypertext transfer protocol (http)
• Supports movement of info over the Web
• To access a Web site, you use TCP/IP and http
• File transfer protocol (FTP)
• Transfer files from one computer to another
• Can download a variety of file types

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2.4 Getting Connected
Four things required to get connected to the
Internet
Software
Computer
Internet
Modem
ISP

• SimNet Concepts Support CD Connecting to the
  Internet

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Options for Internet Service Providers

• SimNet Concepts Support CD Internet Service
  Providers and Connecting to the Internet

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Commercial ISPs

• Charge a monthly fee
• May place a limit on Internet time
• Provides Web space for your Web site
• Can offer 24-hour technical support
• Offers free e-mail, chat rooms, and instant
  messenger
• MSN, AOL, and ATT WorldNet

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Commercial ISPATT WorldNet
p. 2.51 Fig. 2.12
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Free ISPs

• Absolutely free
• May display advertising banners
• No or limited Web space
• Limited technical support
• Popular free ISPs
• Freelane, FreeInternet, and Juno

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Free ISPJuno
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Different Types of Modems
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Telephone Modem

• A telephone for your computer
• A device that connects your computer through a
  phone line to a network

• Changes the digital computer signal to an analog
  phone-line signal
• To access the Internet
• Telephone modem
• Phone line
• Internet Service Provider
• Connectivity software

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Telephone Modems
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More on Telephone Modems

• Usually built into the motherboard or is an
  expansion card
• Generally has two RJ-11 telephone jacks
• Slowest type of Internet connection
• Fastest speed is 56Kbps
• To get a faster connection use DSL, a cable or
  satellite modem, or wireless

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Digital Subscriber Line (DSL)

• A high-speed Internet connection using the phone
  line
• Can talk on the phone while surfing the Internet

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DSL Modems

• 100 times faster than a phone modem
• Always on
• Can use the same phone line for voice connections
• If you have a home network with a router, can use
  the same DSL connection for multiple computers
• Must live within range of phone company

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Cable Modem

• Use cable TV wiring
• Both cable TV and Internet connection travel on
  one wire
• Splitter in home router directs signal
• Cable modem attaches to Ethernet card or USB port
• Between 20 and 100 times faster than a telephone
  modem

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DSL Cable
p. 2.52-2.53 Fig. 2.13 2.14
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Satellite Modem

• Modem that allows you to get Internet access
  using a satellite dish (antenna)
• Some satellite dishes can give both Internet
  access and TV reception
• Satellite modem usually uses a USB port
• Software comes with the satellite modem

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Connectivity Software for Surfing the Web

• Software
• Connectivity software
• Web browser

p. 2.54 Fig. 2.15
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E-mailMicrosoft Outlook

• E-mail addresses are unique
• Typical format is username_at_orgname.orgtype

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(No Transcript)
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2.5 Consumer QA

• What is the Format of an E-mail Address?
• How Fast Can I Surf the Web?
• Can I Spend Too Much Time Surfing the Web?
• How Can I Get My Business Online?
• Can I Take Advantage of Web E-commerce Using a
  PDA or Smart Phone?

• SimNet Concepts Support CD Using E-Mail and
  Web Hosting

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2.6 Key Terms

• Click-and-order business
• Connectivity software
• Directory search engine
• Domain name
• Digital Subscriber Line (DSL) modem
• File transfer protocol (FTP)

• Brick-and-mortar business
• B2B e-commerce
• B2C e-commerce
• C2C e-commerce
• Cable modem
• Click-and-mortar business

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2.6 Key Terms

• Flash
• FTP server
• Internet
• Internet server computer
• Internet service provider
• Internet relay chat
• Mail server

• Player
• Plug-in
• Satellite modem
• Shockwave
• Steaming media
• TCP/IP
• Telephone modem

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2.6 Key Terms

• True search engine
• Uniform resource locator
• Virtual Reality Modeling Language (VRML)
• Web audio
• Web browser software

• Web page
• Web server
• Web site
• Web site address
• Web video
• World Wide Web

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Review of Concepts

• Identifying Servers on a Web Page
• Matching Technical Terms
• Comparing the Real World to the Web Internet
• What is the equivalent of the yellow pages?
• Dissecting a Web Page Address

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Hands On ProjectsE-Commerce

• Setting Up a Business on the Web
• How do Web hosts advertise your site?
• Participating in E-Commerce Auctions
• Got eBay?
• Finding an ISP
• How much Web space do you need?

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Hands On ProjectsEthics, Security Privacy

• Finding Social Security Numbers on Deceased
  People
• The law requires it
• Finding Personal Information on the Web
• Could someone find your shoe size?
• Finding E-Mail Addresses on the Web

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Hands On Projectson the Web

• Registering a Domain Name
• www.whatsyourname.com
• Finding Maps and Directions
• Never be lost again
• Your Schools Web Site Structure

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Hands On ProjectsGroup Activities

• Learning about Web Space at Your School
• Managing Your Cookies
• Are Oreos good for your computer?
• Finding a Regional ISP
• Connecting to the Web through Your School
• How easy is it?