Search Engine is a special software program. The search engine searches the information required by the user with an unlimited spat of information available on the Internet. Search Engine does its search with a specific keyword or phrase, and displays results related to these Keyword or Phrase in the list, which are called Search Engine Result Page (SERPs).
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Must Read – Guide to setup custom domain in blogger.
Search engines are playing a vital role in providing the content to us. Without them, we can’t even imagine our life. It helps to locate information on the World Wide Web server. Users can search for any information by passing query in the form of keywords or phrase. The search engines apps search for relevant information in its database and return to the user.
Components of a Search Engine
As listed below, there are three basic components of a search engine
1. Web Crawler – It is also known as a spider or bots. It is a software component that traverses the web to gather information.
2. Database – All the information on the web is stored in the database. It consists of huge web resources.
3. Search Interfaces – This component is an interface between the user and the database. It helps the user to search through the database.
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The functioning of a Search Engine
Web crawler database and the search interface are the major components of a search engine that actually makes search engine work. Search engines make use of Boolean expressions AND, OR and NOT to restrict and widen the results of a search. Following are the steps that are performed by the search engine:
1. The search engine looks for the keyword in the index for the predefined database instead of going directly to the web to search for the keyword.
2. It then uses software to search for the information in the database. This software component is known as web crawler.
3. Once web crawler finds the pages, the search engine then shows the relevant web-pages as a result. These retrieved web-pages generally include the title of the page, size of text portion, first several sentences, etc.
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List of Most Popular Search Engines
No need tor further introductions. The search engine giant holds the first place in search with a stunning difference of 44% from second in place Bing. Google also dominates the mobile / tablet search engine market share with 89%.Google Search Engine is the most commonly used Web Search. Google was launched in 1997. Google’s Founder has two college friends Mr. Larry Page and Sergey Brin.
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Bing is trying to challenge Google in the field of Microsoft search, but despite his efforts, he still did not manage to convince users that their search engine could produce better results than Google.
Bing is the second popular search engine. Bing has been created by Microsoft. Bing Search Engine was launched in 2009.
Since October 2011, Yahoo is powered by the search engine Bing. Yahoo is still the most popular e-mail provider and puts the third position in search according to the reports.
Yahoo! Search Engine is the world’s third popular search engine. Yahoo! Search was launched in 1995.
Ask.com is a Question-Answer Website. Here users find answers to their questions. Ask.com is a Search Engine almost 20 years old. Its special point is that Ask.com searches answers to questions. And you can find your answers here by category.
According to net market share, the old-time famous OL is still in the top 10 search engines with a market share that is lost to 0.6%. The AOL Network includes many popular web sites like engadget, techchrunch and huffingtonpost.
Baidu was founded in 2000 and is the most popular search engine in China. Its market share is increasing and according to Wikipedia, Baidu is serving billions of queries per month.
7. Wolfram Alpha
Wolfram Alpha is different from all the other search engines. They market it as a computational knowledge engine which can give us facts and data for a number of topics. It can do all sorts of calculations, for example, if we enter 'mortgage 2000' as. input it will calculate our loan amount, interest paid, etc. based on a number of assumptions
It has a number of advantages over the other search engines. It has a clean interface, it does not track users, it is not fully loaded with ads and has a number of very nice features.
9. Internet Archive.
archive.org is the Internet archive search engine. We can use it to find out how a web site looked since 1996. It is a very useful tool if we want to trace the history of a domain and examine how it has changed over the years.
ChaCha has gained popularity over the last few years. It is similar to ask.com where users can ask or answer a particular question. They also have a number of quizzes that can help us decide on a number of topics.
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I have mentioned how search engines work and the top 10 search engines of all time. You must be familiar with all of them and if not please give a try to them also. Not only Google rules the market every search engine has its special place in terms of its features and functionality.