computer fundamentals 2
TRANSCRIPT
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The Internet, the Web,
and ElectronicCommerce
Chapter 2
Copyright 2011 by The McGraw-Hill Companies, Inc. All rights reserved.2-1
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Competencies (1 of 2)
Discuss the origins of the Internet and the Web
Describe how to access the Web using providers
and browsers
Discuss Internet communications, including e-mail,instant messaging, social
networking, blogs,
microblogs, and wikis.
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Describe search tools, including search engines,metasearch engines, and specialized search
engines.
Evaluate the accuracy of information on the Web.
Discuss electronic commerce, including B2C, C2C,B2B, and security issues.
Describe Web utilities:
Web-based applications,
FTP, plug-ins, and filters,
Internet security, and file
transfer utilities.
Competencies(2 of 2)
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The Internet is often referred to as the Information
Superhighway because it connects millions of
people across the globe.
Unlike a typical highway, the Internet moves idea
and information.
The Web provides an easy-to-use, intuitive interface
to connect to the Internet and is used by millions of
people every day.
Competent end users need to be aware of the
resources available on the Internet and the Web.
Introduction
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Large network that connects smaller
networks globally
The Internet was Launched in 1969 National computer network
US funded project
called ARPANET
World Wide Web orWWW was intro-
duced in 1991 at
CERN
The Internet and the Web
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Common Internet Uses
Communicating
Exchange e-mail
Discussion Groups Online shopping Searching
Virtual Libraries
Entertainment Education ore-learning
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Access
Common way to access the Internet is through a
Commercial Internet Service Providers (ISP)
Regional Service Provider
Wireless service
providers
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Browsers
Programs that provide access to Webresources
Allow you to surfthe Internet
Three well-known browsers Mozilla Firefox
Apple Safari
Microsoft Internet Explorer
Google Chrome
Address orlocation of the resource must bespecified
URL
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URLs
Uniform Resource Locators
All URLs have at least two parts
Protocol
Domain name
Locates Web sites
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More on Browsers
Browsers interpret HTML commands Hypertext Markup Language
Contained in a document
Display document as a
Web page
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Most popular Internet activity
Types of communication
Electronic Mail (E-Mail)
Instant Messaging
Social Networking
Communication
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Spam
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Junk and/or unwanted Email
Computer viruses or destructive programs are oftenattached to unsolicited email
CAN-SPAM Act
Spam blockers incorporate a myriad of approachedto identify and control spam
Spam blockers are also referred to as:
Junk mail filters
Anti-spam programs
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Blogs, Microblogs, and Wikis
Web logs or blogs postings thatare timestamped and arranged with
the newest item first
Microblog publishes short
sentences Answer the question - What are
you doing?
Twitter is a microblog
Wiki a Web site speciallydesigned to allow visitors to fill in
missing information
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Search engines
Metasearch engines
Specialized search engines Content Evaluation
Search Tools
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Also known as e-commerce
Buying and selling of goods over the Internet
Business-to-consumer(B2C)
Consumer-to-consumer (C2C) Web auctions
Business-to-business (B2B)
Electronic Commerce
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Involves the sale of a product or service from one
business to another (B2B)
Primarily a manufacturer supplier relationship
Business to Business
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Business to Consumer
Fastest growing type of e-commerce
Three most widely used B2C applications:
Online banking
Financial trading
Shopping
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Consumer to ConsumerWeb Auctions
Consumer-to-consumer e-commerce (C2C)
Similar to traditional auctions
Types
Auction house sites
Person-to-person
auction sites
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Security
Payment methods must be fast, reliable, andsecure
Three basic options
Checks
Credit card
Digital cash
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Specialized utility programs that make usingthe internet & web safer and easier
Web-based applications
Plug-Ins Filters
FTP
Internet Security Suites
Web Utilities
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Plug-Ins
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Return
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Filters
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Internet Security Suites
Collection of utility programs designed to maintain
your security and privacy while on the web
McAfee
Norton
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Careers In IT - Webmasters
Develop & maintain
websites
Back-up of the company
website, updatingresources, and
development of new
resources
Work with the marketing
department to increase the
site traffic flow
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Smart appliances in homes will have theirown Web page
Refrigerators know what food they contain
Appliance could send an e-mail to thegrocery store to restock
Downsides?
A Look to the FutureWeb-Accessible Refrigerators
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Discuss the uses of the Internet. Whichactivities have you participated in? Whichone do you think is the most popular?
Explain the differences between the threetypes of providers.
What are the basic elements of an e-mailmessage?
Open-Ended Questions (Page 1 of 2)
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What is social networking? Describe the
three types of social networking sites.
Describe the different types of searchengines. Give an example of the type of
search each engine is best for.
Open Ended Questions (Page 2 of 2)