The University of Rochester (U of R, UR, or URoc) is a private, nonsectarian, research university located in Rochester, New York. It is often described as a small, liberal arts college in a big, research university. The University grants undergraduate, graduate, doctoral, and professional degrees through six schools and various interdisciplinary programs. The University is home to several noted schools and programs, including the number one ranked Eastman School of Music and The Institute of Optics, the oldest optics program in the United States. The University enrolls approximately 4,600 undergraduates and 3,900 graduate students. The University of Rochester with its affiliated Strong Health System is the largest employer in the Greater Rochester area and the sixth largest employer in New York.