Search Engines / Search ServicesA search engine is a generic term for a method of searching a database by inserting keywords in a form. In addition to providing these forms for users to search their database, comprehensive search services use automated software to create their database.
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This software is called a robot, bot, spider or crawler; it
gathers data from web servers around the world and deposits it in the
service’s database where it is indexed. When the user fills out a form at
the service’s web site and hits the search button, the terms (query) are
sent to this database to see if they match the data it contains.
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