Technological innovations have given boon to the cognitive development students. Societal interactions are done more with the digital methods due to the use of smart phones. The growth of technology is effecting the students to a great extent. Almost every activity of our life is controlled by electronic media like TVs, computers, smartphones, tablets etc. The televisions have now become smart, computers are updated with the technology even now and then, smartphones have adopted the technology of 5' generation. The day is not far when the technology will be so powerful that we will not be able to do anything without technology. With the help of social media many of the things have become easy. People can interact with each other very easily. Lot of exchange is possible through it. Digital technology is the use of computer and internet for the purpose of erchanging information, learning and understanding various things electronically. Young children are not the exception for this. They use the technology not only for educational purpose but for getting in touch with others, gaming. exchanging photographs and other information etc. thus the technology have positive as well as negative impact on their life. It is generally seen that computers increase the number of self-self interactions. If these computer related trends continue, and if technology makes it possible for children to engage in self-self interactions, mental growth will be heightened. This paper highlights the utilization of Digital technology on student's cognitive development. This paper studies the transformation of teaching learning process due to introduction of digital technology and its impact on Student's Cognitive development