Cloud computing is a type of computing that relies on sharing computer resources rather than having local sources or personal devices handle applications. The word cloud is supposed to be a metaphor for the Internet. Different services are delivered to computers and devices through the Internet. Cloud computing applies supercomputing to perform trillions of computations per second in a variety of areas. These areas include delivering personal information, providing data storage, or powering computer games. To do this, cloud computing uses networks of large groups of servers to spread data-processing evenly among them.
There are a few ways that businesses can utilize cloud computing. First, it can be used in free and paid for e-mail services, such as Gmail. It is also used for backup and file sharing. This allows files to be accessed by logging in from any location and on any computer, such as with Dropbox. Cloud computing has also been used to make customer relationship management system less expensive, because now one can just log in and use it rather than downloading it themselves. It also allows people to rent servers, rather than buying a server that they may only use for a short amount of time. Lastly, cloud computing can be used by businesses to edit documents. For example, people can access Google Docs for word processing any time and on any computer.
References:
http://www.webopedia.com/TERM/C/cloud_computing.html
http://www.itdonut.co.uk/it/networking/how-do-businesses-use-cloud-computing-
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