Chapter 7: The Web and E-mail1 The Web and E-mail Chapter 7.
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Transcript of Chapter 7: The Web and E-mail1 The Web and E-mail Chapter 7.
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Chapter 7: The Web and E-mail 1
The Web and E-mail
Chapter 7
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Chapter 7: The Web and E-mail 2
Web Basics• The Web
• Web site
• Podcasts
• RSS
• Atom
• Web 2.0
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Chapter 7: The Web and E-mail 3
Web Basics• Web Server
• Web page
• Web browser
• URL
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Chapter 7: The Web and E-mail 4
HTML• HTML
• Markup language
• HTML tags
• XHTML
• DHTML
• Ajax
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Chapter 7: The Web and E-mail 5
HTML
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Chapter 7: The Web and E-mail 6
Web Browsers
• Help you access Web pages
• Popular browsers:– Internet Explorer– Mozilla Firefox– Apple Safari– Google Chrome
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Chapter 7: The Web and E-mail 7
Web Browsers
• Helper applications
– Plug-in
– Player
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Chapter 7: The Web and E-mail 8
Cookies
• Cookie
• Your computer does not have to accept cookies
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Chapter 7: The Web and E-mail 9
Web Page Authoring
• Text editor• HTML conversion tool• Online Web authoring
tools• Web authoring
software
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Chapter 7: The Web and E-mail 10
HTML Scripts
• HTML scripts can perform complicated tasks and respond to user actions
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Chapter 7: The Web and E-mail 11
Search Engines
• Search Engine Basics
• Formulating Searches
• Citing Web-based Source Material
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Chapter 7: The Web and E-mail 12
Search Engine Basics
• Web search engine
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Chapter 7: The Web and E-mail 13
Search Engine Basics• Web crawler
• Search engine indexer
• Search engine’s query processor
• Link popularity
• Meta keyword
• Keyword Stuffing
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Chapter 7: The Web and E-mail 14
Formulating Searches
• Most search engines work with keyword queries in which you enter one or more words, called search terms
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Chapter 7: The Web and E-mail 15
Formulating Searches
• Boolean operator
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Chapter 7: The Web and E-mail 16
Citing Web-Based Source
To copy a passage of textfrom a Web page, highlightthe text, click the Editmenu, then select Copy.Next, switch to your owndocument and use thePaste option.
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Chapter 7: The Web and E-mail 17
Citing Web-Based Source
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Chapter 7: The Web and E-mail 18
E-commerce
• E-commerce Basics• Online Shopping• Online Auctions• Online Payment
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Chapter 7: The Web and E-mail 19
E-commerce Basics
• Business transactions conducted electronically over a computer network– B2C– C2C– B2B– B2G
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Chapter 7: The Web and E-mail 20
E-commerce Basics
• Enhances traditional business models
• Styles of online advertisements– Banner ad– Hover ad– Pop-up ad
• Ad-blocking software prevents ads from appearing on screens
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Chapter 7: The Web and E-mail 21
Online Shopping
In a typical shoppingsession, you connect toan online storefront anduse navigation controlsto browse through themerchant’s catalog. Asyou browse, you candrop items into yourelectronic shopping cart.At the checkout counter,you enter the informationnecessary to pay for theitems you selected.
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Chapter 7: The Web and E-mail 22
Online Shopping
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Chapter 7: The Web and E-mail 23
Shopping Carts
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Chapter 7: The Web and E-mail 24
Online Auctions
• Online auction
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Chapter 7: The Web and E-mail 25
Online Payment
• Online payments
• You should make sure your data is protected to prevent the e-commerce transaction data from being “hijacked” and used inappropriately
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Chapter 7: The Web and E-mail 26
Online Payment• A secure connection encrypts the data
transmitted between your computer and a Web site
• SSL • TLS• S-HTTP• HTTPS
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Chapter 7: The Web and E-mail 27
Online Payment• Person-to-person
payments are an alternative to credit cards
• Electronic wallet
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Chapter 7: The Web and E-mail 28
Online Payment
An electronic wallet can transfer your billing and shipping information to aparticipating site’se-commerce Web server when you check out.
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Chapter 7: The Web and E-mail 29
• E-mail Overview
• Netiquette
• E-mail Technology
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Chapter 7: The Web and E-mail 30
E-Mail Overview
• Any person with an e-mail account can send and receive e-mail messages
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Chapter 7: The Web and E-mail 31
E-Mail Overview
• Basic e-mail activities– Writing– Reading– Replying– Forwarding
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Chapter 7: The Web and E-mail 32
E-Mail Overview
• E-mail attachments
• HTML-compliant e-mail software
• Additional e-mail features
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Chapter 7: The Web and E-mail 33
E-Mail Overview
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Chapter 7: The Web and E-mail 34
Netiquette
• Internet etiquette– Meaningful subject– Use uppercase and lowercase letters– Check spelling– Be careful what you send– Be polite– Be cautious with sarcasm and humor
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Chapter 7: The Web and E-mail 35
Netiquette
– Use smileys and text messaging shorthand cautiously
– Use the Bcc function for group mailings
– Don’t send replies to all recipients unless appropriate
– Don’t send huge attachments
– Explain attachments– Stay alert for viruses– Notify recipients of viruses
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Chapter 7: The Web and E-mail 36
E-mail Technology
• E-mail systems carry and manipulate e-mail messages– E-mail servers– Store-and-forward
• Three types of e-mail systems widely used today:– POP– IMAP– Web-based e-mail
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Chapter 7: The Web and E-mail 37
E-mail Technology
• Web-based
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Chapter 7: The Web and E-mail 38
E-mail Technology
• POP server
– E-mail client software– SMTP server
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Chapter 7: The Web and E-mail 39
Web and E-mail Security
• Cookie Exploits
• Fake Sites
• Spam
• Phishing
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Chapter 7: The Web and E-mail 40
Cookie Exploits
• Ad-serving cookie
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Chapter 7: The Web and E-mail 41
Cookie Exploits• Flash cookie
• Web bug
• Antispyware
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Chapter 7: The Web and E-mail 42
Cookie Exploits
• Anonymous proxy service
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Chapter 7: The Web and E-mail 43
Fake Sites
• Fake Web site
• Pharming
• Spoofing
• Anti-spoofing Software
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Chapter 7: The Web and E-mail 44
Spam
• Spam
• Spam filter
• Sender ID and DomainKeys
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Chapter 7: The Web and E-mail 45
Spam
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Chapter 7: The Web and E-mail 46
Phishing
• Phishing
• If you don’t want to become a phishing victim, be suspicious of e-mail messages that supposedly come from banks, ISPs, online payment services, operating system publishers, and online merchants
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Chapter 7: The Web and E-mail 47
Phishing
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Chapter 7: The Web and E-mail 48
Chapter 7 Complete
The Web and E-mail