Microsoft Office Tutorials and References
In Depth Information
Search Engines and Uniform Resource Locators
Search Engines and Uniform Resource Locators
Finding information on the Internet is made easier through the power of search engines,
which search the Web for the words or expressions you enter as search criteria. Some
popular search engines include Google, Bing (the default search engine for Internet
Explorer 8), and Yahoo!, which is now powered by Microsoft Bing technology.
Using a Search Engine
To search the Internet, enter your search criteria , keywords that relate to the topic for
which you want to fi nd information, into the Search box and then click the Search
button to begin the search. If you want to select a different search engine, click the Search
box arrow and then select the search engine you want to use. You can also change the
default search engine if you prefer a different one. Internet Explorer displays the results
of a search in a Web page that contains hyperlinks to other Web pages. You’ll search for
information on B&Bs in central Pennsylvania.
To search the Internet using a search engine:
1. Click in the Search box, type B&Bs in central PA as the search criteria, and
then click the Search button at the top-right of the window.
Trouble? The AutoComplete dialog box might open as you are typing.
AutoComplete is a feature that tries to anticipate what you will type based on
previous entries. Click Yes to turn on this feature, unless instructed otherwise.
2. On the results page, find a Web page you want to explore, and click its link.
3. Check out the links available on the Web page. Use the Back button
to return
to the results page to explore other Web pages.
Trouble? If you click a link that opens a Web page that appears in its own window,
click the Close button
to close the window.
4. Navigate to at least two or three Web pages. Use the Back button
and the
Forward button
to move between the Web pages.
5. Click the Home button
on the Command bar to return to your home page.
As you click different links, the URL in the Address box changes. Web browsers use
URLs to identify where Web pages are stored on the Internet. A URL consists of a
fourpart addressing scheme—the protocol, the address of the Web server that stores the Web
page, the path of the folder containing the Web page, and the fi lename of the Web page.
For example, the URL for the Department of Recreation at the University of Pennsylvania
is: http://www.upenn.edu/recreation/index.html
The fi rst part of the URL, http:// , is the protocol , which is a standardized
procedure that computers use to exchange data. Hypertext Transfer Protocol (HTTP) and File
Transfer Protocol (FTP) are two of the most common protocols used on the Internet.
The second part of the URL, www.upenn.edu , is the location of the server; www
indicates the server is a Web server, upenn is the name of the Web site, and .edu indicates
the site belongs to an educational institution. Other categories for Web servers include
.com (commercial enterprises), .gov (government agencies), .mil (U.S. military units or
agencies), .net (network service providers or resources), and .org (organizations, usually
not-for-profi t). The server address corresponds to an Internet Protocol (IP) address. An
IP address is a unique number consisting of four sets of numbers from 0 to 255,
separated by periods (such as 216.35.148.4), that identifi es the server or computer connected
to the Internet. Because IP addresses can be diffi cult to remember, Web addresses use
a domain name, which is upenn.edu in the previous example. A domain name is easy
 
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