Search Engines
Search Engines
A search engine is not a directory or address list. Directories like Yahoo! are collections of links to websites reviewed and edited by person like you and me.
A search engine, on the other hand, uses a particular program (called a crawler or a spider) to waves the Web repeatedly, copying all the data into a gigantic database (an index or list of information).
So when you are searching the web using one of the search engines like google, yahoo and msn, you are not penetrating the Web at all, but the information this search engine has gathered on its computer.
Not one of the varieties of search engines has more information that covers the whole Web sites. Nor are all the results up to date. That is why you should use more than one of the search engines.
AltaVista
AltaVista was formerly recognized as a platform for the Digital Equipment Corporation. They wanted to reveal the superiority and speed of their Alpha 8400 TurboLaser Computer by indexing every single word on the World Wide Web.
In 2003 the AltaVista search engine was bought by Overture, which again was bought by Yahoo! In March 2004 the AltaVista search engine was discontinued. The AltaVista site is now powered by the Yahoo! Search Engine.
Yahoo
In 2003 Yahoo! bought both the Overture and Inktomi with its two search engines, AlltheWeb and AltaVista. In March 2004 Yahoo! introduced the new search engine based on these technologies.
The Yahoo! search engine now powers both the Yahoo! portal, the AlltheWeb site and a variety of sites beforehand motorized by AlltheWeb (Lycos included).
The Yahoo! search engine is a very powerful tool, and can almost positively be compared with Google as regards superiority, even though not as regards scope.
A search engine is not a directory or address list. Directories like Yahoo! are collections of links to websites reviewed and edited by person like you and me.
A search engine, on the other hand, uses a particular program (called a crawler or a spider) to waves the Web repeatedly, copying all the data into a gigantic database (an index or list of information).
So when you are searching the web using one of the search engines like google, yahoo and msn, you are not penetrating the Web at all, but the information this search engine has gathered on its computer.
Not one of the varieties of search engines has more information that covers the whole Web sites. Nor are all the results up to date. That is why you should use more than one of the search engines.
AltaVista
AltaVista was formerly recognized as a platform for the Digital Equipment Corporation. They wanted to reveal the superiority and speed of their Alpha 8400 TurboLaser Computer by indexing every single word on the World Wide Web.
In 2003 the AltaVista search engine was bought by Overture, which again was bought by Yahoo! In March 2004 the AltaVista search engine was discontinued. The AltaVista site is now powered by the Yahoo! Search Engine.
Yahoo
In 2003 Yahoo! bought both the Overture and Inktomi with its two search engines, AlltheWeb and AltaVista. In March 2004 Yahoo! introduced the new search engine based on these technologies.
The Yahoo! search engine now powers both the Yahoo! portal, the AlltheWeb site and a variety of sites beforehand motorized by AlltheWeb (Lycos included).
The Yahoo! search engine is a very powerful tool, and can almost positively be compared with Google as regards superiority, even though not as regards scope.
posted by Seo Services India at 9:24 PM
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