Introduction to Computer Networks

"Introduction to Computer Networks: Step-by-Step Guide" is a comprehensive resource tailored for students, educators, and professionals seeking foundational and advanced knowledge in computer networking. The book presents a logical progression from basic networking principles to complex concepts, including OSI and TCP/IP models, transmission media, signal encoding, switching, routing, and various networking protocols. Through its structured chapters, it demystifies the intricacies of network layers, covering critical topics such as IP addressing, Ethernet standards, error control, and congestion management. Designed with clarity and pedagogy in mind, the book integrates real-world examples, detailed illustrations, and practical scenarios to foster a deeper understanding of both wired and wireless communication systems. From the physical layer to the application layer, readers are guided through the architecture and functioning of modern networks. This book is an essential guide for those pursuing computer science, electronics, IT, or preparing for careers in network administration, cybersecurity, or systems engineering.