Fog computing is extending cloud computing by transferring computation on the edge of networks such as mobile collaborative devices or fixed nodes with built-in data storage, computing, and communication devices. Fog gives focal points of enhanced proficiency, better security, organize data transfer capacity sparing and versatility. With a specific end goal to give imperative subtle elements of Fog registering, we propose attributes of this region and separate from cloud computing research. Cloud computing is developing innovation which gives figuring assets to a specific assignment on pay per utilize. Cloud computing gives benefit three unique models and the cloud gives shoddy; midway oversaw assets for dependable registering for performing required errands. This paper gives correlation and attributes both Fog and cloud computing differs by outline, arrangement, administrations and devices for associations and clients. This comparison shows that Fog provides more flexible infrastructure and better service of data processing by consuming low network bandwidth instead of shifting whole data to the cloud.

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Cloud Computing is a field of IT that can revolutionize the traditional computing facilities. Cloud Computing gives a new view to our hardware and software facilities by making them elastic rather than scalable. The system can be scaled up or down according to a user's need. The use of open source technology is a turning point in providing cloud computing infrastructure to reduce the cost by a large magnitude. We can build our own private clouds and share resources viz. hardware and software without making any investment. The aim of this paper is to provide open source solution to build a private cloud. Iaas(Infrastructure as a service) implementation means to implement a private cloud wherein we can share hardware resources so as to reduce the cost of IT services of an organization.

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