1. What Is Search Engine?
Search Engine is a basically a platform from where you can gain information about any single topic with just entering a simple keyword in the search box. The search engines are basically established to fulfill the information need of people on the World Wide Web. Search engine provide results on the basis of your entered keywords and their already set database. They match your keywords with their already presented data and deliver you results accordingly. The result list you observe is known as Search Engine Results Pages.
A search engine has all sort of information from picture to company profile, web pages to PDF files, web directories to databases etc.
Now, you must be thinking how a particular search engine collects the extensive information easily? These search engines also sustain synchronized information by following particular algorithm by web flatterer.