In May 2012, Google introduced a Knowledge Graph semantic search feature in the U.S.Īnalysis of the frequency of search terms may indicate economic, social and health trends. In June 2011, Google introduced ' Google Voice Search' to search for spoken, rather than typed, words. It was originally developed in 1997 by Larry Page, Sergey Brin, and Scott Hassan. The main purpose of Google Search is to search for text in publicly accessible documents offered by web servers, as opposed to other data, such as images or data contained in databases. Google Search also provides many different options for customized searches, using symbols to include, exclude, specify or require certain search behavior, and offers specialized interactive experiences, such as flight status and package tracking, weather forecasts, currency, unit, and time conversions, word definitions, and more. The order of search results returned by Google is based, in part, on a priority rank system called ' PageRank'. It is also the most-visited website in the world. Handling over 3.5 billion searches per day, it has a 92% share of the global search engine market. Google Search (known simply as Google), is a search engine provided by Google.
