A search engine or search service is a program designed to help find information stored on a computer system such as the World Wide Web, inside a corporate or proprietary network or a personal computer. The search engine allows one to ask for content meeting specific criteria (typically those containing a given word or phrase) and retrieves a list of references that match those criteria. Search engines use regularly updated indexes to operate quickly and efficiently. Without further qualification, search engine usually refers to a Web search engine, which searches for information on the public Web. Other kinds of search engine are enterprise search engines, which search on intranets, personal search engines, which search individual personal computers, and mobile search engines. However, while different selection and relevance criteria may apply in different environments, the user will probably perceive little difference between operations in these. Some search engines also mine data available in newsgroups, large databases, or open directories like DMOZ.org. Unlike Web directories, which are maintained by human editors, search engines operate algorithmically. Most web sites which call themselves search engines are actually front ends to search engines owned by other companies.

History

---

The very first tool used for searching on the Internet was Archie. (The name stands for "archive" without the "v", not the character from the 'Archie' comic book series). It was created in 1990 by Alan Emtage, a student at McGill University in Montreal. The program downloaded the directory listings of all the files located on public anonymous FTP (File Transfer Protocol) sites, creating a searchable database of filenames.

While Archie indexed computer files, Gopher indexed plain text documents. Gopher was created in 1991 by Mark McCahill at the University of Minnesota. (The program was named after the school's mascot). Because these were text files, most of the Gopher sites became Web sites after the creation of the World Wide Web.

More on [ Search engine ]

Search Engines - Twitter Search

If the success or failure of your online business depends on the whims of the search engines, you need this http://bit.ly/24EX2L
DaisydaChi (Daisy May) Thu, 31 Dec 2009 17:10:46 -0000
If the success or failure of your online business depends on the whims of the search engines, you need this http://bit.ly/24EX2L
risk being banned by the major search engines with no...
DesBoss (Desmo Boss) Thu, 31 Dec 2009 17:10:29 -0000
risk being banned by the major search engines with no...
is not tolerated by the major search engines, and furthermore...
DesBoss (Desmo Boss) Thu, 31 Dec 2009 17:09:50 -0000
is not tolerated by the major search engines, and furthermore...
Major search engines concludes that if your website is popular with many back-linked websites...
DesBoss (Desmo Boss) Thu, 31 Dec 2009 17:07:52 -0000
Major search engines concludes that if your website is popular with many back-linked websites...
In general, the more high quality in bound – backlinks, to you website, the higher the website will rank in the major search engines.
DesBoss (Desmo Boss) Thu, 31 Dec 2009 17:07:19 -0000
In general, the more high quality in bound – backlinks, to you website, the higher the website will rank in the major search engines.
2010 New Year Logos from Search Engines: Yahoo, Bing, Ask.com & Google (Coming Soon) http://bit.ly/66sg33
mercylivi (mercylivi) Thu, 31 Dec 2009 17:06:16 -0000
2010 New Year Logos from Search Engines: Yahoo, Bing, Ask.com & Google (Coming Soon) http://bit.ly/66sg33

Subscribe to Search_Engines RSS feed