The University of Cambridge is one of the world’s oldest universities and leading academic centres, and a self-governed community of scholars. Cambridge comprises 31 Colleges and over 150 departments, faculties, schools and other institutions. The Computer Laboratory is an academic department within the University of Cambridge that encompasses Computer Science, along with many aspects of Engineering, Technology and Mathematics. It consists of 38 full-time academic staff, 25 support staff, 40 post-doctoral research workers and 154 PhD students. The Computer Laboratory, Systems Research Group has been a pioneer in the design and study of multimedia applications for the Internet, and has also developed recently a strong expertise on challenging networks. Systems is the largest research area in the Computer Laboratory covering hardware, communications hardware and software, operating systems and distributed systems.