Typically, a university is further divided into schools or colleges. Within each school or college, several related departments are housed. For example, a university that offers arts, sciences, business, and engineering might assign a college/school for each of these areas. Within the college of sciences, you will find departments such as physics, chemistry, biology etc. However, there are some exceptions that you will find. For example: Department of Math and Computer Science or Department of Electrical Engineering and Computer Science. These exist because of history within the university and their internal organization.