"The book on the role of communication in computer science gives an in-depth information about the roles of communication in computer science. The process of transmitting data, instructions, and information from one computer to another or between several computers is referred to as ""computer communications."" The process of transmitting data, instructions, or information is started by the devices that are doing the sending.This textbook offers an understandable introduction to the concepts, rules, and, in particular, the sophisticated instrumentation techniques used in computer communication, making it ideal for students and researchers just starting in the field. This book also comprehensively reviews the current and future developments in computer communications. This book differs significantly from previous standard works on computer communications in numerous ways. To understand computer communications, t he first step is to learn the fundamentals of computer communication, which is heavily influenced by human interaction. The second step is to apply these concepts in increasingly realistic scenarios. The approach of this textbook has various advantages, but arguably the most important is that it provides information that will remain relevant for decades."