P.V.S. Rao, Formerly, Senior Professor and Head of the Computer Systems and Communications Group, Tata Institute of Fundamental Research (TIFR), Mumbai, is currently Adviser to Satyam Global Lifenet, Hyderabad. Earlier, he was with Tata Teleservices (Maharashtra) Ltd. He also served as Adviser to Tata Infotech and Tata Consulting Services (TCS). Professor Rao has been deeply involved in research and development in computer systems and information technology for well over 50 years. He is the Editor of the Journal of the Computer Society of India. Professor Rao is the recipient of the Padmashri Award (1987), the Om Prakash Bhasin Award (1987), the VASVIK (1987), and the Vikram Sarabhai Research Award (1976). He was awarded the Millennium Medal of The Institution of Electrical and Electronics Engineers. A distinguished Fellow of the IETE, Professor Rao has presented several papers at various conferences held in India and abroad and has also published a number of articles in national and international journals.