Search Engine Training Institute in Ambala!Batra Computer Centre

Ph. No.: 8222066670, 4000670 Website: www.batracomputercentre.com


What are Search Engines?

It is basically a type of program that uses keywords to search for documents that relate to these keyword and then puts the results found in the order of relevance to the topic that was searched for.

Examples:

-- Google-- Alta Vista


Importance of search engines

Search engine importance because with over 8 billion web pages available, it would be impossible to search for the information that is specifically needed. This is why search engines are used to filter the information that is on the internet and transform it into results that each individual can easily access and use within the matter of seconds.


Types of search engines

Crawler based search engines

Directories

Specialty search engines

Hybrid search engines

Meta search engines


Crawler based search engines

Are search engines that use software programs that are called, “Spiders”, “Crawler”, “Robots”, “Bots”. These program can access the web pages to categories and analyze them and then add them in the search engine data base, where any user can find the when searching. The crawler based searched engines are constantly updated with new webpage that would be available in their data base.

Example:-- Yahoo-- Ask.com


Google Google began in January 1996 as a research project Founded by Larry page and sergey Brin Most popular search engine Google’s homepage include a button labeled “I’m

feeling lucky” when the user type in the search and click on the button the user will be taken directly to the first search result

Beside the main search engine feature of searching for text, Google search has more than 22 “Special feature”


Yahoo

In January 1994, Jerry Yang and David Filo, Stanford University graduates, created a website called “David and Jerry’s Guide to the world wide web”, in Sunnyvale, California.

In April 1994, “David and Jerry’s Guide to the world wide web” was renamed to “yahoo!”

Yahoo! Provides internet communication service

Yahoo! Offers social networking service.


Ask.com

A question and answer focused search engine

Founded in 1998 by Garrett Gruener and David

Warthen in Berkeley, California.


Directories

Are websites sectioned in specific categories by human editors ad are then placed in the “Directories” database.

Example:--Yahoo directory ( www.yahoo.com)--Open Directory (www.dmoz.org)


Specialty search engine

They help the user search in different areas in specific types of lists that are specialized in specific topic that would be beneficial for narrowing down the searching process.

Example:--Askjeeves--Medhunt


Hybrid Search Engines

Are search engines that use both crawler based searches and directory searches to obtain their results.

Example:--yahoo.com--google.com


Meta Search Engines

Are search engines that combine all the results from

other search engines into one big list

Example:

--Metacrawler

--Dogpile


How to use Search Engines

Be specific:--When searching on search engine be more specific in wording.

Use the + symbol & - symbol:--If you wants to two words in search, you can use the + symbol

before each word so that only web pages that have both word appear. On the other hand you can use the – symbol if you are looking for a topic.

Use quotation marks Combining symbols: you can combine all the symbols explained

above to do the search your own way.


Boolean Searches

Boolean searches use the Boolean operators to

combine words and make the search topic more

specific and limited for the user.


Boolean Operators

And Is equal to the + symbol

Not is equal to the – symbol

Or means that the search engines automatically return

to the words that you type in.

Near is equal to putting quotes for a specific phrase

such as “Shakespeare sonnets”



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Education

Search Engine Training Institute in Ambala!Batra Computer Centre