Search results
Google Search (also known simply as Google or Google.com) is a search engine operated by Google. It allows users to search for information on the Internet by entering keywords or phrases. Google Search uses algorithms to analyze and rank websites based on their relevance to the search query.
- History
Google was officially launched in 1998 by Larry Page and...
- Timeline
Google Search, offered by Google, is the most widely used...
- List of search engines
Search engines, including web search engines,...
- Wikipedia
Wikipedia is a free online encyclopedia, created and edited...
- History
Then Chairman and CEO Eric Schmidt (left) with co-founders Sergey Brin (center) and Larry Page (right) in 2008. Google LLC (/ ˈ ɡ uː ɡ ə l / ⓘ GOO-ghəl) is an American multinational corporation and technology company focusing on online advertising, search engine technology, cloud computing, computer software, quantum computing, e-commerce, consumer electronics, and artificial ...
Wikipedia is a free online encyclopedia, created and edited by volunteers around the world and hosted by the Wikimedia Foundation.
- Search Engine
- Functionality
- Search Products
- Related Pages
- Further Reading
- Other Websites
PageRank
Google's rise to success was in large part due to a patented algorithm called PageRank that helps rank web pages that match a given search string.Previous keyword-based methods of ranking search results, used by many search engines that were once more popular than Google, would rank pages by how often the search terms occurred in the page, or how strongly associated the search terms were within each resulting page.The PageRank algorithm instead analyses human-generated links, assuming that we...
Search results
The exact percentage of the total of web pages that Google indexes is not known, as it is very hard to actually calculate.Google not only indexes and caches web pages but also takes "snapshots" of other file types, which include PDF, Word documents, Excel spreadsheets, Flash SWF, plain text files, and so on. Except in the case of text and SWFfiles, the cached version is a conversion to (X)HTML, allowing those without the corresponding viewer application to read the file. Users can customize t...
Non-indexable data
Despite its immense index, there is also a considerable amount of data available in online databases which are accessible by means of queries but not by links. This so-called invisible or deep Web is minimally covered by Google and other search engines. The deep Web contains library catalogs, official legislative documents of governments, phone books, and other content which is dynamically prepared to respond to a query. Privacy in some countries forbids the showing of some links. For instanc...
Google search consists of a series of localized websites. The largest of those, the google.com site, is the top most-visited website in the world.Some of its features include a definition link for most searches including dictionary words, the number of results you got on your search, links to other searches (e.g. for words that Google believes to b...
In addition to its tool for searching webpages, Google also provides services for searching images, Usenet newsgroups, news websites, videos, searching by locality, maps, and items for sale online. In 2006, Google has indexed over 25 billion web pages, 400 million queries per day, 1.3 billion images, and over one billion Usenet messages. It also ca...
Google Hacks from O'Reilly is a book containing tips about using Google effectively. Now in its third edition. ISBN 978-0-596-52706-8.Google: The Missing Manual by Sarah Milstein and Rael Dornfest (O'Reilly, 2004). ISBN 978-0-596-00613-6How to Do Everything with Google by Fritz Schneider, Nancy Blachman, and Eric Fredricksen (McGraw-Hill Osborne Media, 2003). ISBN 978-0-07-223174-8Google Power by Chris Sherman (McGraw-Hill Osborne Media, 2005). ISBN 978-0-07-225787-8Google was officially launched in 1998 by Larry Page and Sergey Brin to market Google Search, which has become the most used web-based search engine. Larry Page and Sergey Brin, students at Stanford University in California, developed a search algorithm first (1996) known as "BackRub", with the help of Scott Hassan and Alan Steremberg.
Google Search, offered by Google, is the most widely used search engine on the World Wide Web as of 2023, with over eight billion searches a day. This page covers key events in the history of Google's search service.
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Which search engine has a search facility for online databases?
Search engines, including web search engines, selection-based search engines, metasearch engines, desktop search tools, and web portals and vertical market websites have a search facility for online databases.