Editorial Reviews Computer communications and networking may be the fastest growing technologies in world today. The importance of a network model based on layers and the importance of network standards are examined. The basic concepts of data communications shows how we have progressed from paper-based systems to modern computer networks. It begins by describing why it is important to study data communications and how the invention of the telephone, the computer, and the Internet has transformed the way we communicate. This book contains Five Chapters viz., Fundamentals & Link Layer, Media Access & Internetworking, Routing, Transport Layer and Application Layer. The topics are developed systematically for a through understanding of the subject. This books also contains Short Questions & Answers and Review Questions.