A program that searches documents for specified keywords and returns a list of the documents where the keywords were found. Although search engine is really a general class of programs, the term is often used to specifically describe systems like Google, Alta Vista and Excite that enable users to search for documents on the World Wide Web and USENET newsgroups.
Spider-Based Search Engines. Directory-Based Search Engines. Link-Based Search Engines.
The popular engines are yahoo, google and msn
Simple. You can find definition in dictionary. If not search in the search engines like google.
The 4 most popular search engines in the are: Google Bing Yahoo DuckDuckGo
search engines
The search engine visits billions of websites and creates a database or repository of sorts of the various sites. As it turns out a search engine that searches multiple sites but not the entire web is also known as a meta search engine (although the definition is not very popular). Google Custom Search Engines (CSE's) are an excellent example of such search engines. The part of meta search engine includes Meta tag, Meta description, Meta data etc.
Google is the most popular search engine on the internet, followed by Yahoo. Other search engines include Bing, AOL search, AltaVista, Excite and Emlsearch
A meta search engine (or aggregator) is a search instrument that uses another search engine's information to deliver their own particular results from the Internet. Meta search engines take data from a client and all the while convey inquiries to outsider search engines for results.
Google is the most popular search engine. Apart from it there are lot more search engines likes: Yahoo Bing Ask.com Altavista Lycos Dogpile Excite Alltheweb Clusty etc
There are many popular search engines. The most major include:GoogleYahoo!Ask (with Ask Jeeves and Ask for Kids)There are many other minor ones too though. See the Related Link, an article from Wikipedia about search engines, for a list of the current search engines in operation and when they were launched. The list is on the right side at the top of the article.
The 4 most popular search engines, in terms of the amount of searches performed on them daily are as follows:GoogleYahooBing (MSN)Ask
Search engines are like websites where you type in what you are looking for and it finds you different sites on the Internet that may be what you are looking for. Some popular search engines include Google and Ask.