The University of Illinois at Urbana–Champaign is often regarded as a world-leading magnet for engineering and sciences (both applied and basic).  Having been classified into the category comprehensive doctoral with medical/veterinary and very high research activity,  by The Carnegie Foundation for the Advancement of Teaching , Illinois offers a wide range of disciplines in undergraduate and postgraduate programs. It is also listed as one of the Top 25 American Research Universities by The Center for Measuring University Performance .  Beside annual influx of grants and sponsored projects, the university manages an extensive modern research infrastructure.  The university has been a leader in computer based education and hosted the PLATO project, which was a precursor to the internet and resulted in the development of the plasma display . Illinois was a 2nd-generation ARPAnet site in 1971 and was the first institution to license the UNIX operating system from Bell Labs.