Fundamental of Business Data Communications (13版)

類似書籍推薦給您

書名：Fundamental of Business Data Communications 13/e 作者：FitzGerald 出版社：John Wiley 出版日期：2018/00/00 ISBN：9781119923763 內容簡介 As the world grows increasingly interconnected, data communications has become a critical aspect of business operations. Wireless and mobile technology allows us to seamlessly transition from work to play and back again, and the Internet of things has brought our appliances, vehicles, and homes into the network; as life increasingly takes place online, businesses recognize the opportunity for a competitive advantage. Today’s networking professionals have become central to nearly every aspect of business, and this book provides the essential foundation needed to build and manage the scalable, mobile, secure networks these businesses require. Although the technologies evolve rapidly, the underlying concepts are more constant. This book combines the foundational concepts with practical exercises to provide a well-grounded approach to networking in business today. Key management and technical issues are highlighted and discussed in the context of real-world applications, and hands-on exercises reinforce critical concepts while providing insight into day-to-day operations. Detailed technical descriptions reveal the tradeoffs not presented in product summaries, building the analytical capacity needed to understand, evaluate, and compare current and future technologies. 目錄 PART ONE: INTRODUCTION Chapter 1: Introduction to Data Communications PART TWO: FUNDAMENTAL CONCEPTS Chapter 2: Application Layer Chapter 3: Physical Layer Chapter 4: Data Link Layer Chapter 5: NETWORK AND TRANSPORT LAYERS PART THREE: NETWORK TECHNOLOGIES Chapter 6: Network Design Chapter 7: Wired and Wireless Local Area Networks Chapter 8: Backbone Networks Chapter 9: Wide Area Networks Chapter 10: The Internet PART FOUR: NETWORK MANAGEMENT Chapter 11: Network Security Chapter 12: Network Management Appendices (Online) Glossary (Online) Index

Fundamental Physics of Sound

類似書籍推薦給您

This is a textbook on the basic sciences of sound. It contains sufficient latest information on the subject and is divided into four parts that fit into the semester structure. The first part deals with basic Newton's second law of motion, simple harmonic oscillation, and wave properties. Newton's second law, "the net force is equal to the rate of change of momentum," is used to derive the speed of waves in a medium. The second part focuses on the psychoacoustics of our perception of three attributes of sound: loudness, pitch and timbre. The third part discusses the basic physics of some musical instruments and human voice. From the point of view of physics, musical instruments and human speech are similar. They are composed of a sound source and a resonator. Human ingenuity has produced various aesthetic-looking and ear-pleasing instruments for musicians to perform. Magical human evolution has also shaped our vocal folds and vocal tract so that we can dynamically change loudness, pitch, and timbre in an instant, in a manner that no other musical instrument can emulate. The fourth part includes electricity and magnetism, room acoustics, digital technology in acoustics, effects of noise on human hearing, and noise regulations for hearing protection that are relevant to sound wave production, transmission, storage, and human ear protection. Our ears are extremely sensitive. Without proper protection, loud noise including loud music can damage our ears. Government regulation and education serve as a first line of protection in working environments. This small book is comprehensible, understandable and enjoyable to all eager students.