Types of Search Engines

Search Engine

A program which is used to search information on the web is called search engine.

Search Engine Components and their working

Generally there are three basic components of a search engine as listed below:

1. Web Crawler

2. Database

3. Search Interfaces

1.Web crawler

It is also known as 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 database. It consists of huge web resources.

3.Search Interfaces

This component is an interface between user and the database. It helps the user to search through the database.

Types of Search Engines

1. Google

·       Its monthly Visitors are 1.6 billion

·       It is the No.1 search engine in the world

·       Google was founded in 1998 by Larry Page and Sergey Brin 

while they were Ph.D. students at Stanford University, California

·       Other service are

§  Google play store,

§  Google news,   

§  Google Puls,

§  Google Drive

§  Google map

§  Google translator

§  Google photos

§ 




Google earth

§  Google Docs

2. Bing

·       Its monthly Visitors are  400 million

·       Bing is a web search engine owned and operated by Microsoft

·       It was launched in 2009

·       Bing provides a variety of search services, including web, video, image and map search products

3. Yahoo

·       Its monthly Visitors are  300 million

·       It is a type of web portal

·       The original Yahoo! company was founded by Jerry Yang and David Filo in January 1994 

·      

Services including 

§  Yahoo! Directory

§  Yahoo! Mail

§   Yahoo! News

§   Yahoo! Finance 

§  Yahoo! Groups

§   Yahoo! Answers

§   Advertising

§   Online mapping

§  Video sharing

4. Ask.com

·       Its monthly Visitors are  245 million

·       It is developed by IAC (InterActiveCorp) is an American holding company

·       Ask.com (originally known as Ask Jeeves) is a question answering web search engine 

·       founded in 1996 by Garrett Gruener and David Warthen in Berkeley, California

·       The original idea behind Ask Jeeves was to allow users to get answers to questions  

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