Internet is a wide ocean of information. Its size doubles every year and so does the number of users. Under such circumstances the information retrieval can be a tedious task, though available. Hence there exists a need to simplify this process. This need is fulfilled by search engines. Search engines give any information regarding the required subject available on internet, based on the keywords. Almost everyone of us is using search engines but never bothered How does a search engine work ?.
To tell the working methodology of a search engine simple words:
They send crawlers, which send the links related to the keywords as hits. Search Engines analyze these links and display results based on PageRank.
Introduction::
The World-Wide Web is moving rapidly from text-based towards multimedia content, and requires more personalized access. The amount of information on the web increases vigorously and so do the number of new users, inexperienced in the art of web search.
Search engines use automated software programs known as Spiders or Robots to survey the Web and build their databases. Web documents are retrieved by these programs and analyzed. Data collected from each web page are then added to the search engine index . When you enter a query at a search engine site, your input is checked against the search engine’s index of all the web pages it has analyzed .
More >>How does a search engine work ??
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