The University Library System (ULS) is the University of Pittsburgh's largest library organization and is administered by the Hillman University Librarian and Director, ULS. The organization in its current form dates back to 1982, when the University combined the administration of its libraries for the Graduate Schools of Business, Public and International Affairs, and the School of Library and Information Sciences with that of the Hillman Library and its branches. From the early 1980s the library system adopted many new services and resources alongside the evolution of computer technology including, most notably, the installation and unveiling of its first online catalog based on the NOTIS integrated library system.