AbstractThe recent progress in the Internet of things (IoT) has brought in a change by setting up an environment in which not simply computers or mobiles devices but also everyday electronic and as well as domestic household items like lights, cars, refrigerators, washing machines etc. are capable enough to join in the internet and can sense, collect and even exchange data. The Internet of Things employs a flexible and distinct architecture which enables various millions and millions of devices to effortlessly join on the internet, which is resulting in the production of huge information every other day.

It is getting quite difficult for Internet of Things applications to manage this huge information which is generated every day at large scale by making use of cloud alone, so a different sort of computing called Fog computing is suggested which when implemented along with cloud computing easily takes care of the information management in an Internet of Things environment. The report aims to highlights that, why fog computing is needed in the Internet of Things and explains briefly how to implemented Fog in Internet of Things along with cloud computingKey Words – Internet of Things, Cloud Computing, Information, Fog Computing. IntroductionThe recent evolution and the ever changing requirements in technology triggered the development and widespread use of cloud computing over the last few years for efficiently storing and managing data (Subhadeep Sarkar, 2015). Cloud Computing is actually a model of computing that provides on demand pool of sharable resources.

Nonetheless making use of cloud computing in an Internet of Things environment or in an Internet of Things application for managing and storing data is not always the right choice to make (Erik Elmroth, 2017), with each passing day there is an increase in the number of devices that join the internet owing to the booming development of Internet of Things, for cloud data centers to manage all this information and quickly process it is getting difficult day by day.    Due to its popularity and unique architecture that allows every “thing” to join a network and be a part of internet, Internet of Things is producing a bizarre amount and range of data. It is estimated by the Cisco IBSG that by the year 2020 there will be around 50 million devices connected in IoT (Evans, 2011).

The current problem that is faced by the Internet of things is the variety of abnormal volume of data that is produced at large scale in the various environments of internet of things, which day by day is getting difficult to be managed by the cloud and other traditional systems. Traditionally Cloud computing have been used in Internet of Things for managing and storing information,  where in the information produced by the Internet of Things devices is saved in the cloud data centers, but cloud has certain challenges associated to it. The processing of data in cloud takes time since cloud is centralized and is not convenient for environments where quick processing is required (Cisco, 2015). Internet of things requires a new infrastructure to overcome this problem and manage the big data that is being generated; the models of clouds that are ready for use in the market today are not capable of handling the huge volume and the variety of data that is generated by the Internet of Things.

Every day billions of devices are getting connected to Internet of Things environments generating two exabytes of data in just a single day and in such situations moving this huge volume of data to cloud for further analysis will require huge amount of bandwidth which is costly as cloud computing model works on the principle of “pay as you go” (Flavio Bonomi, 2014).

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