Web search engines work by storing almost all of the information page web, which is taken directly from www. These pages are retrieved automatically. contents each page and then analyzed to determine how it should be indexed (for example, the words taken from the title, subtitle, or special fields called meta tags).data about web pages are stored in an index database for use in The next quest. Some search engines, like Google, store all or the page source (called a cache) as well as information about a web page itself.When a user visits a search engine and enter a query, usually by entering keywords, search engines index and provide a list of pages web that best fits the criteria, usually accompanied by a brief summary of the title documents and sometimes some text. Another search engine that uses real-time processes, such as Orase, not use the index in the way it works [4].
Information required machine collected only if there is a new search. When compared to systems based index used engines like Google, real-time system is superior in such things as information is always up to date, (almost) no broken links, and more little system resources as needed (Google uses almost 100,000 computers, Orase only one.). However, there are also disadvantages of a longer search completion.
Information required machine collected only if there is a new search. When compared to systems based index used engines like Google, real-time system is superior in such things as information is always up to date, (almost) no broken links, and more little system resources as needed (Google uses almost 100,000 computers, Orase only one.). However, there are also disadvantages of a longer search completion.
Source :(Fauzan Azmi) http://www.ilmukomputer.com
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