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The Internet—Illustrated Introductory, Fourth Edition 3 Understand Web Browsing When you connect to the Internet, your computer becomes part of a worldwide client/server network. As a Web client, your computer makes requests of Web servers on the Internet.
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The Internet, Fourth Edition--Illustrated
1
The InternetThe Internet––Illustrated Illustrated Introductory, Fourth EditionIntroductory, Fourth Edition
Unit BUnit BUnderstanding Browser BasicsUnderstanding Browser Basics
The Internet—Illustrated Introductory, Fourth Edition 2
U n i t O b j e c t i v e sU n i t O b j e c t i v e s
Understand Web browsingUnderstand Web browsingUnderstand Hypertext Markup Understand Hypertext Markup Language (HTML)Language (HTML)Understand Web site addressesUnderstand Web site addressesCopy text and graphics from a Web pageCopy text and graphics from a Web page
The Internet—Illustrated Introductory, Fourth Edition 3
Understand Web BrowsingUnderstand Web Browsing
When you connect to the When you connect to the Internet, your computer becomes Internet, your computer becomes part of a worldwide client/server part of a worldwide client/server network. network.
As a Web client, your computer As a Web client, your computer makes requests of Web servers makes requests of Web servers on the Internet.on the Internet.
The Internet—Illustrated Introductory, Fourth Edition 4
Understand Web BrowsingUnderstand Web Browsing
Client/server structure of the WWWClient/server structure of the WWW
The Internet—Illustrated Introductory, Fourth Edition 5
Understand Hypertext Markup Understand Hypertext Markup Language (HTML)Language (HTML)
An An HTML document HTML document is a text file that contains the Web is a text file that contains the Web page content and the instructions in HTML tags for page content and the instructions in HTML tags for formatting that content. formatting that content.
A Web page is the result of a browser reading the tags in A Web page is the result of a browser reading the tags in an HTML document and displaying the content by an HTML document and displaying the content by evaluating the tags.evaluating the tags.
An An HTML anchor tagHTML anchor tag links multiple HTML documents links multiple HTML documents together. together.
The Internet—Illustrated Introductory, Fourth Edition 6
Understand Hypertext Markup Understand Hypertext Markup Language (HTML)Language (HTML)
<b>Welcome to the <i>Danville Animal Shelter</i></b>
Welcome to the Danville Animal Shelter
opening HTML tags closing HTML tags
what the browser displays
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Understand Hypertext Markup Understand Hypertext Markup Language (HTML)Language (HTML)
Linked Web pagesLinked Web pages
The Internet—Illustrated Introductory, Fourth Edition 8
Understand Web Site AddressesUnderstand Web Site Addresses
An IP address consists of a four-part An IP address consists of a four-part number. number. Each part is a number ranging from 0 to 255. A possible IP address is 106.29.242.17.
Most people use a domain name to Most people use a domain name to identify a Web site. identify a Web site. Domain names are words and abbreviations
associated with specific IP addresses. IP addresses can be difficult to remember.
The Internet—Illustrated Introductory, Fourth Edition 9
Understand Web Site AddressesUnderstand Web Site Addresses
Common top-level domainsCommon top-level domains
The Internet—Illustrated Introductory, Fourth Edition 10
Understand Web Site AddressesUnderstand Web Site Addresses
A A Uniform Resource Locator (URL)Uniform Resource Locator (URL) tells the Web browser the following tells the Web browser the following information:information: the transfer protocol to use when transporting
the file (usually HTTP) the domain name of the computer on which
the file resides the path name of the folder or directory on the
computer on which the file resides the file name
The Internet—Illustrated Introductory, Fourth Edition 11
Understand Web Site AddressesUnderstand Web Site Addresses
The Internet—Illustrated Introductory, Fourth Edition 12
Navigate Through a Web SiteNavigate Through a Web Site
Going to a previously visited Web pageGoing to a previously visited Web page
The Internet—Illustrated Introductory, Fourth Edition 13
Copy Text and Graphics Copy Text and Graphics from a Web Pagefrom a Web Page
To copy text from a Web To copy text from a Web page:page:Drag the mouse pointer over the
text you want to copyClick Edit on the menu barClick Copy
The Internet—Illustrated Introductory, Fourth Edition 14
Copy Text and Graphics Copy Text and Graphics from a Web Pagefrom a Web Page
To copy graphics from a Web To copy graphics from a Web page:page:Right-click the image you want
to copyClick Save Picture As or
Save Image As on the shortcut menu
The Internet—Illustrated Introductory, Fourth Edition 15
Terms to UseTerms to Use
Internet Protocol address (IP address): the unique number that identifies each
computer, like 197.144.51.1
Domain name: the equivalent of an IP address that uses
words and abbreviations, like ccsf.edu
Top-level domain: the last part of a domain name, like .com
The Internet, Fourth Edition--Illustrated
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The InternetThe Internet––Illustrated Illustrated Introductory, Fourth EditionIntroductory, Fourth Edition
Unit CUnit CUsing E-MailUsing E-Mail
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E-Mail AddressE-Mail Address
user name host name
@ sign
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Clues to UseClues to Use
E-mail messages can have viruses, worms, and E-mail messages can have viruses, worms, and Trojan horses in attached filesTrojan horses in attached files
Don’t open attachments from people you don’t Don’t open attachments from people you don’t knowknow
If you know the sender, make sure the message If you know the sender, make sure the message makes sense and is specific to youmakes sense and is specific to you some worms reproduce by sending themselves out as
attachments to everyone in a victim’s Address Book or Contacts list
Install anti-virus software that protects your Install anti-virus software that protects your computer from malicious programscomputer from malicious programs Hotmail checks for viruses in attachments automatically
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Terms to UseTerms to Use
Mail client software:Mail client software: a program that lets you send and receive e-mail allows you to store e-mail on your computer you can read e-mail that you’ve received even after
disconnecting from the Internet
Web-based e-mail service (Webmail):Web-based e-mail service (Webmail): allows you to send and receive e-mail by using a Web
browser and the service’s Web site lets you read your stored e-mail messages from different
computers you can only access your stored e-mail messages when
you’re connected to the Internet
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Terms to UseTerms to Use
User name:User name:in an e-mail address, the name
your ISP uses to identify you
Host name:Host name:in an e-mail address, the computer
that stores the e-mail
