Search Engine
Search Engine
A search engine is a tool that helps users find information on the internet by crawling and indexing pages from websites and allowing users to enter keywords or phrases to retrieve relevant results.
What does Search Engine mean?
A search engine is a Software system that allows users to quickly find information on the World Wide Web. It uses a Set of algorithms to determine the relevance of web pages to a user’s query.
Search engines work by crawling the web, which means that they follow all the links on a Web Page and add them to their index. When a user enters a query, the search engine searches its index for pages that contain the keywords in the query. The search engine then ranks the pages based on their relevance to the query.
The relevance of a page is determined by a number of factors, including the number of times the keywords appear on the page, the location of the keywords on the page, and the overall quality of the page.
Applications
Search engines are used for a wide variety of purposes, including:
- Finding information on a specific topic
- Researching a product or service
- Comparing prices
- Finding directions
- Getting news and weather updates
- Watching videos
- Playing games
Search engines are an essential part of the modern Internet. They provide users with a quick and easy way to find information on any topic.
History
The first search engine was developed in 1990 by Alan Emtage at McGill University in Montreal, Canada. The search engine was called Archie and it allowed users to search for files on FTP servers.
In 1994, Sergey Brin and Larry Page developed BackRub, which was the first search engine to use backlinks to determine the relevance of web pages. In 1998, BackRub was renamed Google and it quickly became the most popular search engine in the world.
Since then, search engines have continued to evolve and improve. Today, search engines are able to understand natural language queries and provide users with more relevant and personalized results.