speaking and writing 6_26

1. How Internet Search Engines Work
How to use of search engine
●
How To Index
●
How to use of search engine
●
Search engine's mechanism
●

2. The search engine's introduction
● A Web search engine is a tool
designed to search for
information on the World Wide
Web.
● The search results are usually
presented in a list and are
commonly called hits. The
information may consist of web
pages, images, information and
other types of files.
● Some search engines also mine
data available in databases or
open directories.

3. How To Index
● The indexing software
gathers URLs of the
documents from the
crawlers or spider.
● The software extracts
information from them
and puts it into a
database.
● The extracted information
depends on the types of
the software.

4. How to use of search engine
● When you visit a search
engine and want to search
the Internet for information,
you type words on a web
page.
● Depending on the search
engine, more than just
keywords can be used.
● Example of search engines
are Yahoo!, Google, Joy
and so on.

5. Search engine's mechanism
● The database receives
user request, it is
searched based on the
criteria user have set.
● The search engine
returns results in a
different way.
● I am set direct to that
document, when I click a
link to one of the
documents that I
interested in.

6. References
http://www.b2bm.biz/blog/SEO/HowSearchEnginesWork.jpg
●
http://www.library.southernct.edu/search.gif
●
http://www.google.co.jp/intl/ja_jp/images/logo.gif
●
http://www.seomoz.org/img/upload/google-algorithm-serp.gif
●