
Data Analysis has been the source of learning for every field from psychology, biology, astronomy to very recent social networking and online shopping. The customer who has always been the center for any business is even more important to businesses all over the world. The actions, reactions and responses of the customer today can be captured very easily. This is possible due to the widespread use of the computer like devices (PC, laptop, mobile, tablet etc) and networking. Current businesses have seen a steep increase in growth through the use of data mining, analysis and customer behavior predictability. In this paper we present the existing system of computer networks and explore them to understand the significance of each entity, their behavior, scope and limitations. The in-depth learning of computer networks brings the realization as to how frugally the network data has been comprehended. The data about the activities of the users of the computer networks has been studied and used to gain insights of behavior. The data related to the devices themselves remains unexplored to benefit both the user and the provider.