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Difference between Search Engine and Portal


Search Engine

The Search engine is a program which is designed to enable the users to browse information or content on World Wide Web. It helps retrieve the desired information in minimum time. It allows you to input specific keywords or phrases and retrieves a list of items matching those keywords and phrases. Thus, it does not provide information straight away; it just retrieves pages which are related to keywords or other search terms. Some of the popular search engines are Google, Bing, and Yahoo! Search.

Portal


Portal is a private location on the internet which acts as a point of access to the information available on the World Wide Web. A portal is accessed through a unique URL, unique username and password, i.e. apart from URL, personal login is required to see the content on a portal. Some of the popular portals are facebook.com, gmail.com and twitter.com.





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History of the World Wide Web:

The World Wide Web was invented by a British scientist, Tim Berners-Lee in 1989. He was working at CERN at that time. Originally, it was developed by him to fulfill the need of automated information sharing between scientists across the world, so that they could easily share the data and results of their experiments and studies with each other. CERN, where Tim Berners worked, is a community of more than 1700 scientists from more than 100 countries. These scientists spend some time on CERN site, and rest of the time they work at their universities and national laboratories in their home countries, so there was a need for reliable communication tools so that they can exchange information. Internet and Hypertext were available at this time, but  no one thought how to use the internet to link or share one document to another. Tim focused on three main technologies that could make computers understand each other, HTML, URL, and HTTP. So, the objective behind the invention of WWW ...
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