ewheat
Forennoob
Joined: 15 Nov 2012
Posts: 11
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 Posted: Fri Nov 16, 2012 3:17 pm Post subject: search engine |
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is designed to search for information on the World Wide Web. The search results are generally presented in a line of results often referred to as search engine results pages (SERPs). The information may be a specialist in web pages images, information and other types of files. Some search engines also mine data available in database or open directories Unlike web directories which are maintained only by human editors, search engines also maintain real-time information by running an algorithm on a web crawler
The very first tool used for searching on the Internet was Archie The name stands for "archive" without the "v". It was created in 1990.Later Magellan, Excite Infoseek Inktom, Northern Light and AltaVista . Yahoo was among the most popular ways for people to find web pages of interest. rather than full-text copies of web pages. Information seekers could also browse the directory instead of doing a keyword-based search.
Around 2000, Google's search engine rose to prominence. The company achieved better results for many searches with an innovation called PageRank. This iterative algorithm ranks web pages based on the number and Page Rank of other web sites and pages that link there. By 2000, Yahoo! was providing search services based on Inktomi's search engine. Yahoo! Acquired Inktomi in 2002, and Overture(which owned AlltheWeb and AltaVista) in 2003. Yahoo! switched to Google's search engine until 2004, when it launched its own search engine based on the combined technologies of its acquisitions. Microsoft first launched MSN Search in the fall of 1998 using search results from Inktomi. In early 1999 the site began to display listings from Looksmart blended with results from Inktomi except for a short time in 1999 when results from AltaVista were used instead. In 2004, Microsoft began a transition to its own search technology, powered by its own web crawler (called msnbot).
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