Chapter 5. Data Communications Basics
This chapter explores some of the basics of data communications. It starts with a discussion of the evolution of data communication and then discusses the terminology used to describe different aspects of data networking. It’s important to have a good grasp of these basics before wading into deeper waters.
The Evolution of Data Communications
Data communication, or data networking, is the exchange of digital information between computers and other digital devices via telecommunications nodes and wired or wireless links. To understand the evolution of networking services, it is important to first understand the general computing architectures and traffic types, both of which have changed over time.