Search Engines Articles
Search engines are programs that are designed to search for information on the World Wide Web (WWW). Included in this list of information would be web pages, information, images, directories, audio and video files, and other types of files. These files could be found in the WWW, and search engines will retrieve the inputted keywords from the WWW itself.
When users enter keywords into search engines, the search engines will send a command to the indexer to find sites with the inputted keywords. The indexers will search through search engines' databases for matching keywords, and will then provide the user with an index. A search engine's database is compiled by web crawlers, or what others refer to as spiders. These spiders are sent out by search engines even though they are not requested. The spiders could be likened to surfers, with the only difference that they are not humans. The web crawlers would enter a website and follow link after link, while inputting the gathered data into the search engine's database. Sometimes the spiders will find links by guessing from common words, another is based on previous terms which were already explored in the site, the third is from keywords which were inputted by the users, and lastly, a combination of the three.
There are millions of web pages in the World Wide Web, and search engines categorise which pages are more popular, relevant, accurate, or authoritative than others. A majority of search engines utilize methods that rank which pages would be shown first. The order of results that should be shown first varies, depending on which search engines are handling the search. The methods utilized by search engines also often change as the Internet usage develops and new techniques evolve.
History of search engines
Search engines were introduced to the people during 1993. In the following years, several search engines were set up. To this date, there are several search engines available in the World Wide Web.
Why search engines are important
A decade ago, research was only possible by browsing through piles and piles of books, sorting through old newspaper, and checking magazines, pamphlets, and other printed materials. In this digital age, there is an easier method of researching. Search engines enable faster and more accurate research, giving the user many sources for cross reference for the given information. It saves valuable time. Search engines could also help users in domestic chores, such as shopping, and finding help online, such plumbers, carpenters, helpers, butlers, and the likes. Recipes are also available.
Over all, when it comes to research, there is no better way than using search engines. Directories, shops, items, and everything a person needs is available online. With the right keywords, the world is at the tips of a user's fingers.