BookTác giả : Michael Duck (2003)
A broad introductory text written for computer scientists and engineers, focusing on the fundamental aspects of data communications and computer networks. This second edition has been thoroughly revised to cover current networking issues and technologies. Specific updates include those on networks and their management, transmission technologies, security and encryption. This text is appropriate for modular courses in data communications as well as computer science. It is also a useful source for professionals in related disciplines. 
