ABOUT SEARCH ENGINE
A Search Engine is an online tool that searches for results in its database based on the search query (keyword) submitted by the internet user. The results are usually websites that semantically match with the search query.
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Search Engines find the results in their database, sort them and make an ordered list of these results based on the search algorithm. This list is called the search engine result page (SERP).
There are so many Search Engines on the market, while the most widely used is Google. Many website browsers such as Chrome, Firefox, Safari or Edge usually come with a default search set as a home page or starting page.
HISTORY
Before the arrival of the search engine, computers were linked together simply to let people transfer files between themselves. Those who had files to share set up a server, and those who wanted the files would come and get them. In time these servers clumped together, and having lots of files in one place made them easier to find. But even with clumping, files were spread out over the Internet. If you did not know the location of a file, it was very hard to track it down.
This was the problem facing Alan Emtage (b. 1964) , studying at McGill University in Monetreal. With funding for software limited, it was Emtage’s job to find free applications in the Internet for the university to use. At first he searched by hand, building a database of the software he had found, but eventually, being a computer scientist, he made a program to do the job.
In 1990 the first search engine was born. Emtage’s program was built to achieve, but the UNIX world standard for program names required them to be short and cryptic. So that he dropped the “v” in “archive” and named the program “Achie”. The software was a long way from modern search engines. It could help you find it, which was a massive leap forward.
Archie searched file names, but in 1991, Gopher was created-this could search the text contained within files. Search engine then began to use statistics to aid the search. Yahoo added descriptions of pages and lycos analyzed the closeness of words and gave you sites by relevance. By 1995, AltaVista had appeared, additionally capable of searching of pictures, music and videos.
“BY TYPING A KEYWORD, USERS COULD ACCESS THE NAMES OF FILES HELD IN ARCHIE’S DATABASE OF ARCHIVE SITES.”
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