how search engines work, a simplified version
DESCRIPTION
this presentation explains how a search engine works. the content of this presentation is presented in a simple manner so that even a new internet user can understand the concept easily. in simpler words this is How Search Engines Work for Dummies !!TRANSCRIPT
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search engine is a complex algorithm [computerized program]
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these complex algorithms are called as spiders or bots who go out hunting websites on the internet.
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bots and spiders find new websites and pages by following links added on a website.
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once a new page is found the spider or bot reads the Content & also checks for Images.
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everything is stored in a huge online library called as “Index”.
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this indexed data is stored in encoded format to save space.
Image Source - http://web.mit.edu/nchernia/www/images/data.jpg
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the search engine goes back to its mammoth index library to fetch the required information.
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the search engine found millions of matching information, so it uses an algorithm to decide in which order to display the results.
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information is ready in less than 1 second and displayed on a SERP [Search Engine Result Page]
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regularly updated websites with unique content are given better positions on SERP.
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user analyzes the search result and reaches a website.
officechairs.c o m
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….that’s How a Search Engine Works.
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Popular search engines across the world are -
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we should also know that -
by 2010 there were 2 billion internet users. [30% of the world population]
77% of U.S citizens were online by the end of 2010.
Asia itself has 825 million internet users followed by Europe at 475 million users.
Google is the dominant search engine across the world since 2006.
55 Billion searches were conducted by Americans only in 2010.
By 2015 India, Brazail, China & Russia will have maximum internet users in the world.
Statistics Source - http://searchenginewatch.com/article/2048792/Top-Level-Trends-of-SEM-Worldwide-in-2010-and-2011
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