Abstract—Understanding consciousness and implementing it in manmade machines has interested researchers for a long time. Despite the amount of research efforts, the measurable development in this field is very small. Among various technical, philosophical and ethical reasons, the primary reason is the difficulty in understanding consciousness. Most researchers assume that consciousness is a meta-physical phenomenon. In this paper, we consider various perspectives related to cognitive and information science to conclude that consciousness is a physical phenomenon. We also discuss the role of information in making machines conscious and present our own views on consciousness