Lecture Business data communications: Chapter 1 - Behrouz A. Forouzan

Chapter 1 - Introduction. This chapter addresses four issues: data communications, networks, protocols and standards, and standards organizations. First, we give a broad definition of data communications. We then define networks as a highway on which data can travel. We also discuss different types of protocols and the difference between protocols and standards. Then, we give a brief review of the standards organizations that we refer to throughout the book. Finally, we discuss network models.