chapter 7: the web and e-mail1 the web and e-mail chapter 7

Chapter 7: The Web and E-mail 1

The Web and E-mail

Chapter 7

Chapter 7: The Web and E-mail 2

Web Basics• The Web

• Web site

• Podcasts

• RSS

• Atom

• Web 2.0

Chapter 7: The Web and E-mail 3

Web Basics• Web Server

• Web page

• Web browser

• URL

Chapter 7: The Web and E-mail 4

HTML• HTML

• Markup language

• HTML tags

• XHTML

• DHTML

• Ajax

Chapter 7: The Web and E-mail 5

HTML

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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Web Browsers

• Helper applications

– Plug-in

– Player

Chapter 7: The Web and E-mail 8

Cookies

• Cookie

• Your computer does not have to accept cookies

Chapter 7: The Web and E-mail 9

Web Page Authoring

• Text editor• HTML conversion tool• Online Web authoring

tools• Web authoring

software

Chapter 7: The Web and E-mail 10

HTML Scripts

• HTML scripts can perform complicated tasks and respond to user actions

Chapter 7: The Web and E-mail 11

Search Engines

• Search Engine Basics

• Formulating Searches

• Citing Web-based Source Material

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Search Engine Basics

• Web search engine

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Search Engine Basics• Web crawler

• Search engine indexer

• Search engine’s query processor

• Link popularity

• Meta keyword

• Keyword Stuffing

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Formulating Searches

• Most search engines work with keyword queries in which you enter one or more words, called search terms

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Formulating Searches

• Boolean operator

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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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Citing Web-Based Source

Chapter 7: The Web and E-mail 18

E-commerce

• E-commerce Basics• Online Shopping• Online Auctions• Online Payment

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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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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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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Online Shopping

Chapter 7: The Web and E-mail 23

Shopping Carts

Chapter 7: The Web and E-mail 24

Online Auctions

• Online auction

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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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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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Online Payment• Person-to-person

payments are an alternative to credit cards

• Electronic wallet

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Online Payment

An electronic wallet can transfer your billing and shipping information to aparticipating site’se-commerce Web server when you check out.

Chapter 7: The Web and E-mail 29

E-mail

• E-mail Overview

• Netiquette

• E-mail Technology

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E-Mail Overview

• Any person with an e-mail account can send and receive e-mail messages

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E-Mail Overview

• Basic e-mail activities– Writing– Reading– Replying– Forwarding

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E-Mail Overview

• E-mail attachments

• HTML-compliant e-mail software

• Additional e-mail features

Chapter 7: The Web and E-mail 33

E-Mail Overview

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

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

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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E-mail Technology

• Web-based

Chapter 7: The Web and E-mail 38

E-mail Technology

• POP server

– E-mail client software– SMTP server

Chapter 7: The Web and E-mail 39

Web and E-mail Security

• Cookie Exploits

• Fake Sites

• Spam

• Phishing

Chapter 7: The Web and E-mail 40

Cookie Exploits

• Ad-serving cookie

Chapter 7: The Web and E-mail 41

Cookie Exploits• Flash cookie

• Web bug

• Antispyware

Chapter 7: The Web and E-mail 42

Cookie Exploits

• Anonymous proxy service

Chapter 7: The Web and E-mail 43

Fake Sites

• Fake Web site

• Pharming

• Spoofing

• Anti-spoofing Software

Chapter 7: The Web and E-mail 44

Spam

• Spam

• Spam filter

• Sender ID and DomainKeys

Chapter 7: The Web and E-mail 45

Spam

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

Chapter 7: The Web and E-mail 47

Phishing

Chapter 7: The Web and E-mail 48

Chapter 7 Complete

The Web and E-mail