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         How exactly does Go ogle return all those search results?





              oogle's name is synonymous with   every single corner of the internet, but the   spider will have compiled your search results by
              internet search and browsing. The   company's indexes are pretty darn good. In fact,   visiting will be www.marmite.com, so no rocket
         G  Google homepage has become the   they are among the biggest databases on the   science as yet. This first stage of website search is
         gateway into the world wide web and its plainly   planet. We're talking about many billions of   known as the 'seed' level.
         presented, mostly blank starting screen is no   webpages stored on thousands of machines   After we pass the seed level we start to branch
         accident- it is meant to represent an open page   around the world.   out. The spiders will then crawl outwards further
         just waiting to be filled with search results based   But how does Google build this index- and   and follow links from the initial pages that it
         on your area of query.            how does it 'populate' it with accurate and   finds and start to weave a web of interconnected
          Google understands that cyberspace is   meaningful results data that will be useful to   websites that share relevance in terms of
         massive and it is expandingjust about as fast as   users? Even Google has to start somewhere, so it   content. The spider builds up a pattern of pages
         the universe itself. just like our own cosmos   uses software programs known as spiders, also   linked to pages, which must be recursively
         there are chunks of matter out there in the form   commonly referred to as crawlers or Googlebots.   revisited in order to ensure they still contain
         of huge planets of data ilet's call them web   These useful little crawlers are sent out initially   content relating to the original search. Pages are
         portals in this instance) with their own   to the most logical places on the web. If you   revisited based on frequency 'policies' that are
         ecosystems inside of which users interact.   search for 'Marmite', most likely the first site the   set by software that resides on Google's servers.
          The problem is, no one has been able to create                      But what we need to remember is that the web is
         an accurate and definitive map of the universe,                      so vast and changeable that no spider will ever
         or cyberspace for that matter, due to the   '' Coogle                capture all the information out there.
         constantly changing dynamic shape of both                             So let's start with a search. Say we want to look
         worlds. But Google is there to guide us with some   understands that   up 'toasted cheese sandwiches'. We type in
         clever technologies and more than a couple of                        those three words and press Return. Google's
         nifty tricks, which you may not even be aware of  cyberspace is massive   query processor software then gets to work
         as you surf the web.                                                 filtering through its indexes to decide which
          What's really clever about Go ogle's search   and it is expanding   links to present. But hang on-what's to stop us
         function is that when most ofususe itwe think                        getting results on cheese making, results on
         that we're searching the internet itself. In fact   just about asfastas   toaster-buying advice and results on the Earl of
         we're not. We're searching Google's index of                         Sandwich? Well, Go ogle asks questions. More
         the web. Google doesn't have connections to   the universe itself''   than zoo questions in fact. You could say that

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