What is Search Engine and How its work

Search Engine are program that search documents for specified keywords and return a list of documents where the keyword were found. A search engine is really a general class of programs, However term is often used to specifically  describe system like google,bing, yahoo search that enables user to search for documents on the world wide web.

How Search Engine Works

  1. The Search Engine use robots (also known as spiders) to search the internet for websites.
  2. The result of spiders travels are put in an data base which is then indexed based on words found and where these words were found.
  3. The user of search Engine search for words or phrases related to what they are looking for and the search engine index return related sites.

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