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A search engine on the Internet is a coordinated set of programs that includes:

  • A spider (also called a "crawler" or a "bot") that goes to every page or representative pages on every Web site that wants to be searchable and reads it, using hypertext links on each page to discover and read a site's other pages.

  • A program that creates a huge index (sometimes called a "catalog") from the pages that have been read, then receives your search request, compares it to the entries in the index, and returns results to you.

Basically you use a search engine to help you find information on the Internet. This is one way to "Surf the Internet", by continually clicking on hyperlinks on a listing to go to another web page, that a search engine gives you based on your search criteria.

We will be discussing many features of search engines in today's lesson. Let's get starting by clicking on the links below.








See ResourceRecommendations. Feel free to add additional resources to these lists, but please follow the guidelines on ResourceRecommendations including ResourceRecommendations#Guidelines_for_Rating_Resources.


  • () ValHaring - 12 Sep 2002
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