Computer Science is the study of computers and the work they do. We need a science of computers because, unlike other machines, computers are general purpose; the same machine can perform many different tasks and the same tasks can be done equally well by different computers.
Because of this, the study of what a computer can do is more than the study of a particular machine. It is the study of what can be done by a device which processes information. Naturally Computer Science papers deal with the practical matter of making the computer do what we want it to (programming). But we also deal with many other questions about computing and computers. How do they work? How are they used? How do they fit into our society? What are their limitations?
Today computers are used not only as a tool in commerce and science, but also for research in many disciplines, such as Anthropology and Linguistics. Computer Science can be taken as a major for both the Bachelor of Arts and Bachelor of Science degrees and can also be included as a supporting subject in a Bachelor of Commerce degree. Some knowledge of computing is useful to all science students and many arts and business students even if you do not intend to major in Computer Science.
