Define: Search Engine
A Search Engine enables users to find information on the World Wide Web. Search engines use keywords entered by users to find Web sites which contain the information sought. Some search engines are specifically designed to find Web sites intended for children.
Why use search engines
There are lots of great and useful information and billions of Web pages on the Internet, but it's impossible to examine all this information. The search engines and directories help you go through all those web pages to find the information you need.
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