Page 129 - How It Works - Book of Amazing Answers To Curious Questions, 12

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The user's search goes off to the nearest available Google __ ........... _ ..... .....
web server to plug in to the catalogue of information
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Google looks up relevant information related to your search
by accessing its records of billions of webpages stored on .,.. ...... ,
thousands of its machines around the world
Search preferences can be tweaked to
Google's query processor software then gets to work filtering provide greater accuracy in results
through its indexes to decide which links to present

Google's query software asks over 200 questions to wade
through vast lumps of data as it tries to apply almost human
logic to reason why this search has been made

Depending on the language used to make the search, the
analysis engines will be working away to check for
possible synonym usage that might provide the user
with a more useful and more accurate set of results

Pages are then classified by their 'page rank', a formula-based
score derived from Google's own calculations

Google's Page Rank formula goes to work
PR(A) = (1-d) + d(PR(tl)/C(tl) + ... + PR(tn)/C(tn))

The user can now click on the links, try a different search
term - or possibly even play with Google's Options
controls to change the how the search function operates

The user's search becomes one of 'hundreds of millions'
of searches handled each day by Google alone

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WorldMags.net How It Works 129