How Google Search Works..?

Now a days Internet has become a comman term among people and in it Google is one of the most widely used searched engine. So now some people What really a Search Engine is..?  So Search Engine is basically a program or tools by which we are able to search anything on the Internet. There are many types of search engines available like... Google search, Yahoo Search, Bing, Duck Duck Go etc.. in them the Google is mostly used.
           So now the question arises How Does a Google Search  Works..? When you search anything on Google let us suppose you typed 'techtalksgroup'.
       Basically it works in many stages, the first stage includes of   

• Crawling . Crawling is a method of fetching a web page that contains the keyword that you types to search. For example i told you that if i search techtalksgroup on google it will find everywhere on the web where the word techtalksgroup is located and it will collect it all. Now the next stage is of managing the web page in particular order.
• Indexing.  Now under Indexing stage it will arrange the pages collected in a sequence like  the most searched page will be indexed first and , the pages which exactly matches with the keyword will indexed first etc.. Now the third stage is of just serving the page what you typed.
• Serving.  Now serving comprises of showing the pages and links infront of you what you have searched for.. So there is basically an AI based algorithm know as Page rank. PageRank is the measure of the importance of a page based on the incoming links from other pages. In simple terms, each link to a page on your site from another site adds to your site's PageRank. 

thats it guys...
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