Search engines work by using crawlers to build an index of web pages which is stored in a database, allowing users to search for keywords to retrieve relevant information from the index. The index enables fast searching across websites and collects data from pages to build the database. Search engines function to retrieve internet information and come in different types like robot, directory, and meta search engines.

1. How Internet Search Engins Work
● When we want to search the Internet
● About the index of search engine
● What is Search Engines
● database

2. When we want to search the Internet.
● You type words on a
web page.
● Please describe the
information you want.
● Depending on the
search engine.
● Just keywords can be
used.

3. About the index of search engine
The index of search engine is a data of web page,
and it enables to seek information, fast and collect.
This index is made by program called by crawer, and
a database of each search engines stores its data.

4. What is “Search Engines”?
●Function to retrieve
information that exists on the
Internet and the program.
●The search engine is
classified into the robot type
search engine, the directory
type search engine, and the
meta search engine, etc.

5. database
Database gathers particular data.
It manages, retrieves and extracts data easier.
And it is able to reuse.
Actually it has address, search engine , music
database and so on.

6. References
● http://ja.wikipedia.org/wiki