Welcome Welcome to the Information Technology Orientation for New Users (O4NU) site. This is the starting point for learning about the technology here at Chatham. This site covers the basics on your way to learning all that Chatham has to offer. Contact Information Information Technology Chatham University Woodland Road Pittsburgh, PA 15232 helpdesk@chatham.edu (412) 365-1112 (phone) (412) 365-2741 (fax)