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Transcript of Evans Martin * Mary Anne Poatsy Chapter 3 - Cerritos...
Copyright © 2018, 2017, 2016 Pearson Education, Inc. All Rights Reserved
TECHNOLOGY IN ACTION
Chapter 3
Using the Internet: Making the Most of
the Web’s Resources
Alan Evans * Kendall Martin * Mary Anne Poatsy
Copyright © 2018, 2017, 2016 Pearson Education, Inc. All Rights Reserved
Collaborating and Working on the Web
• The Internet and How It Works
• Collaborating and Communicating on the Web
• Conducting Business on the Web
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The Internet and How It Works
Objectives
3.1 Describe how the Internet got its start.
3.2 Explain how data travels on the Internet.
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Collaborating and Communicating
on the Web
Objectives
3.3 Evaluate the tools and technologies used to
collaborate on the web.
3.4 Summarize the technologies used to
communicate over the web.
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Conducting Business on the Web
Objectives
3.5 Describe how business is conducted using
the Internet.
3.6 Summarize precautions you should take
when doing business online.
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The Internet and How it WorksThe Origin of the Internet (Pg. 86)
• The Internet is an international network of networks
– What is a “network”?
– Is this the same as the “web”?
• U.S. Dept. of Defense needed a network, not easily disrupted, to address to major concerns
– Established a secure form of communications
– Created a means of communication for all computers
• Advanced Research Projects Agency Network (ARPANET)
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The Internet and How it WorksHow the Internet Works (Pg. 88)
• Client/Server network
– What is a Client/Server?
– Client asks for data
– Server receives request and returns data
• Internet Protocol (IP) address
– What is a “Protocol”?
– How computers identify each other
– Websites have unique IP addresses
– Text versions of IP addresses
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Collaborating and Communicating
on the Web with Web Technologies (Pg. 89)
• Web 2.0– Social Web
– Collaboration
tools
– Social media
• Social Networking– Facebook
– Privacy
precautions
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Collaborating and Communicating
on the Web with Web Technologies
• Project Collaboration and File Sharing Tools
– Wikis: Collaborative Web-based documents
– Project Mgt. Tools
• Blogs
– Blog (weblog)
– Video log (vlog)
– Create your own blog
– Problems with blogs
– Microblogs
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Collaborating and Communicating
on the Web with Web Technologies (pg. 92)
• Podcasts
– Audio/video files delivered via Really Simple
Syndication (RSS)
– RSS sends content to an “aggregator” (e.g. iTunes)
– Aggregator downloads new content to
computers/media players
• Webcasts– Broadcast of audio or video content over the Internet
– Usually live one-time only broadcast
• Media Sharing Platforms– YouTube, Flickr, Instagram, Sound Cloud
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Communicating on the Web (pg. 94)
• E-mail– Primary means of communication
– Written message sent or received
– Asynchronous?
– Convenient
– Not private!
– Etiquette
• Web-based E-mail– Managed thru
browser & internet
connection
• E-mail client– Program installed on
personal computer
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Communicating on the Web (pg. 96)
• Communicate in real
time
– Instant Messaging: IM
(synchronous)
– Texting (asynchronous)
▪ Uses SMS/MMS?
– VOIP: Voice Over Internet
Protocol
▪ Digital internet phone
service
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Conducting Business on the Web
• Business-to-consumer (B2C)
– Business sells to consumers
– Amazon.com
• Business-to-business (B2B)
– Businesses sell to other businesses
– Omahapaper.com
• Consumer-to-consumer (C2C)
– Consumers sell to other consumers
– Ebay.com; Craigslist.com
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E-Commerce Safeguards• Guidelines to make shopping safer
•Secure website
•SSL (Secure Sockets Layer)
•standard security technology
•establishes encrypted link between a web
server and a browser.
•Attempt to ensure that all data passed
between the server and browsers remain
private and integral.
•Well-known, reputable sites
•Pay by credit card, not debit card
•Return policy
•Avoid using public computers
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Guidelines to make shopping safer
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Using the Web Effectively
• Accessing and Moving Around the Web
• Searching the Web Effectively
• Using the Web Ethically
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Accessing and Moving Around the
Web
Objectives
3.7 Explain what web browsers are, and describe
their common features.
3.8 Explain what a URL is, and discuss its main
parts.
3.9 Describe tools used to navigate the web.
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Searching the Web Effectively
Objectives
3.10 Describe the types of tools used to search
the web, and summarize strategies used to
refine search results.
3.11 Describe how to evaluate a website to
ensure it is appropriate to use for research
purposes.
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Using the Web Ethically
Objectives
3.12 Demonstrate an understanding of the
ethical issues regarding digital activism.
3.13 Demonstrate an understanding of the
ethical issues regarding location tracking
applications and devices.
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Accessing and Moving Around the WebWeb Browsers (Pg. 105)
• Web browsers
• Graphical
browsers
• Features
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Accessing and Moving Around the WebURLs(?), Protocols, and Domain Names (Pg. 107)
• URL: Uniform Resource Locator
– Standard System to locate resources
on the “web”
– composed of parts to identify the web
document
– Not an “address”
• Every website has a unique URL
• Protocols: standards/rules for
communication
– Hypertext Transfer Protocol
– File Transfer Protocol
• Domain Name
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Accessing and Moving Around the WebNavigating the Web (Pg. 105)
• Hyperlinks
• Breadcrumb trail
• Bookmarks
• History
• Tagging
– Social bookmarking
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Searching the Web EffectivelyUsing Search Engines (Pg. 110)
• Keywords
• Components
– Spider
– Indexer
– Search engine software
• Specialized search engines
• “Metasearch engines” search other search
engines
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Searching the Web EffectivelyUsing Search Engines (Objective 3.10)
• Obtaining better search results
– Boolean operators
– Search for a phrase
– Search within a website
– Use a wild card
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Searching the Web EffectivelyEvaluating Websites (Objective 3.11)
• Internet resource considerations
– Authority
– Bias
– Relevance
– Audience
– Links
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Using the Web EthicallyDigital Activism (Objective 3.12)
• Digital Activism
– Raise awareness about specific issues
▪ #IceBucketChallenge
▪ #BringBackOurGirls
• Ethical question: Is digital activism effective
or does it foster a false sense of
involvement?
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Using the Web EthicallyGeolocation (Pg. 115)
• Smartphones use a GPS chip to calculate
your position
• Geolocation
– Targeting consumers by their location
– Used by third party advertising networks
– Can be a violation of privacy rights
– No specific laws yet to address privacy issues
• Ethical Question: Are geolocation devices a
threat to privacy?
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