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Computer and Communication Networks, Second Edition by Nader F. Mir

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Chapter 1. Packet-Switched Networks

Computer and communication networks provide a wide range of services, from simple networks of computers to remote-file access to digital libraries, voice over IP (VoIP), Internet gaming, cloud computing, video streaming and conferencing, television over Internet, wireless data communication, and networking billions of users and devices. Before exploring the world of computer and communication networks, we need to study the fundamentals of packet-switched networks as the first step. Packet-switched networks are the backbone of the data communication infrastructure. Therefore, our focus in this chapter is on the big picture and the conceptual aspects of this backbone highlighted as:

Basic definitions in networks ...

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