The second edition contains updated and expanded chapters and many new illustrations. It places increased emphasis on digital technology and provides a new chapter on services.
"Introduction to Telephones and Telephone Systems" provides a non-technical, easy-to-understand explanation of every major aspect of today's telecommunications systems perfect for telephone system managers, telecommunications sales professionals, and students. The book gives readers a comprehensive coverage of the four major areas of telephone systems--station apparatus, transmission, switching, signaling--plus fiber optics, PCS systems, regulatory issues and more.
Annotation 'In his study of the telephone in American society, Fishcer confronts the most significant, but also the most difficult, question we can ask about a new technology--what differences did it make in the lives of its users?'Roland Marchand
Mobile devices outnumber desktop and laptop computers three to one worldwide, yet little information is available for designing and developing mobile applications. Mobile Design and Development fills that void with practical guidelines, standards, techniques, and best practices for building mobile products from start to finish. With this book, you'll learn basic design and development principles for all mobile devices and platforms. You'll also explore the more advanced capabilities of the mobile web, including markup, advanced styling techniques, and mobile Ajax. If you're a web designer, web developer, information architect, product manager, usability professional, content publisher, or an entrepreneur new to the mobile web, Mobile Design and Development provides you with the knowledge you need to work with this rapidly developing technology. Mobile Design and Development will help you: Understand how the mobile ecosystem works, how it differs from other mediums, and how to design products for the mobile context Learn the pros and cons of building native applications sold through operators or app stores versus mobile websites or web apps Work with flows, prototypes, usability practices, and screen-size-independent visual designs Use and test cross-platform mobile web standards for older devices, as well as devices that may be available in the future Learn how to justify a mobile product by building it on a budget
Here's an easy-to-comprehend book that gives you a complete introduction to communication technologies and systems, offering you a solid understanding of the fundamentals, history and future direction of this ever-changing field. Geared towards non-technical business professionals and students, this unique resource integrates human physiology and factors, important inventors and business people, and basic technological principles to explain the key concepts and developments of modern communications.