Search
engine is a tool designed by the web developer to search information on the
World Wide Web. The result or the
information from the search is presented in a line of results called as search
engine result pages. The result may be
presented in various formats like web page, image, or a file type like .PDF or
so. Search engine is gaining importance
at jet speed nowadays due to increased use of internet based technology by
small and big businesses. Thus, a
business or an organization must get the most out of this tool by way of Search Engine Optimization.
Search
engines stores the information retrieved from the HTML pages, which is done by
a Web crawler (also called spider), an automated Web browser. There is an index stored in Web and the
engine uses the same in each document.
The search comprises of four major functions is Document processor, query processor, search
and matching function, and raking capability.
