What is a Search Engine?
A search engine is a service which works on world wide.This service is used to search any type of information on the internet .The search engine works on the base of any keyword. A keyword is a special word which is the source of that information With the help of this keyword we receive any detail about the specified topic.
Categories of Search Engines
Mostly we use Google.com for general searches.Ping can also be used but Google is mostly commonly used search engine.