The first part of this essay discusses Friedrich Kittler's media theory to analyze the development of media from writing, through analog technology, and finally to digital technology. The focus is on the character of the computer as technological media and the meanings it represents: computers themselves becoming subjects, as well as being the medium to rule and end all media. When computers develop in this manner, Kittler's media theory puts emphasis on how computers operate upon humans, and this situation faced by humans. Thus, the second part of the essay discusses the hardware operation and software function of computers, and their relations with humans in Kittler's media theory, as Kittler demonstrates how computers "determine our situation." Moreover, the essay deliberates on how the concepts of power and ethics relate to Kittler's media theory that regards computer as technological media. Kittler's media theory brings significant insight into how human beings define themselves and interact with machine/ technology in the 21st century.