What+a+Search+Engine+is

=What is a Search Engine? =

A search engine is a "software program that searches a database and gathers and reports information that contains or is related to specified terms" (Search Engine Definitions).
media type="custom" key="3875561" ===The video was trying to tell you exactly what a search engine is "in plain English" and how to use it more effectively. So the search engine will find information all over the entire web and put it into a list, which you can find what you are looking for. So when you search the word, take for example "dog." First, the search engine will try to find if the word or phrase is misspelled. Then, the search engine will look for sites that is incorporated with the word "dog" and the sites with the word dog used the most will be on top of the search list given. This found with the use of a "Web Crawler." This is a software that goes around the web to find the web pages linked. This list isn't those measly lists with only the sites with the word being used so many times, but it gives a very long list from sites using the word 100 times to one time. Sometimes, like said in the video, people complain that there is too much information given and never too little. The search engine finds information all around the world web and brings it into a list great for people to use. However, there is one catch. The search engine does not go out and find every site in the little time that the page loads, but uses an index. This means that the sites might be outdated a bit.===

===Search engines were things that kept developing since the start of the internet in the 1960's. Gerard Salton was the one who started the foundation to build a search engine. He made up the Salton's Magic Automatic Retriever of Text (SMART) system. This wasn't perfected and wasn't used by anyone, but had a big effect on future development of search engines. Later on, the World Wide Web was formed and many new websites were being developed. However, before many of these sites were formed, "Archie" (first online search engine) was formed(Search Engine History). This was the first step to make more search engines on the internet. As time passed by many more were created like Yahoo! and Google (look at the photo above). Now many users use these search engines for research or to get there web page viewed more.=== ===However, search engines are also paid to place some sites above another so they can have their site viewed by many other people when someone looks it up off a search engine. And the order of the sites are also chosen by the companies Artificial Intelligence (Evaluation).===

Extra information IF you wish to become an expert
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