Basics of Data Communications

Fülszöveg

Basics of Data Communications Edited by Harry R. Karp Editor-in-Chief, Data Communications
Focusing on the present state of the art of today's networks, this volume is aimed at the data communications specialist and manager. It covers all the major aspects of current practice and contains practical solutions to many problems in modern data communications systems.
The book puts in perspective and then explains in clear detail the many considerations that have to be weighed in setting up a data communications system, from the role of management to the intricacies and impact of error control. Every major type of equipment—from modems to programmable front-end processors—is discussed and its place In the overall system Is pinpointed.
Because companies who need data communications systems cannot wait for future improvements, the book concentrates on current equipment and methodology. However, significant future trends are covered, especially in the light of potential or emerging... Tovább

Fülszöveg

Basics of Data Communications Edited by Harry R. Karp Editor-in-Chief, Data Communications
Focusing on the present state of the art of today's networks, this volume is aimed at the data communications specialist and manager. It covers all the major aspects of current practice and contains practical solutions to many problems in modern data communications systems.
The book puts in perspective and then explains in clear detail the many considerations that have to be weighed in setting up a data communications system, from the role of management to the intricacies and impact of error control. Every major type of equipment—from modems to programmable front-end processors—is discussed and its place In the overall system Is pinpointed.
Because companies who need data communications systems cannot wait for future improvements, the book concentrates on current equipment and methodology. However, significant future trends are covered, especially in the light of potential or emerging technological breakthroughs. Here is a sampling of the useful information you'll find in this up-to-date volume
• how costs can be out by concentrating traffic from many low-speed lines onto one higher-speed line
• how the programmable front-end processor serves as a line controller and relieves the host computer of most of its data communications overhead
• how a programmable front end can be more efficient than a larger main frame in a computer-based network
• how the remote data concentrator reduces line costs and improves host-computer usage
• how operating with voice and data channels on the same private line can lead to significant economies
• how an advanced data communications network, a hierarchy of memories, memory mapping, and a unique operating system combine into a retrieval and update system
• how a layered approach toward network design permits data transfer between dissimilar operating systems
• how methodical analysis and a few calculations locate optimum places to invest in redundancy and better maintenance
• how serious errors In data streams can be avoided at the receiving terminal
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• how a network-management center can simplify diagnosis of faults and aid rapid restoration of service
• how a leased-line network with 176 sites is designed so that faults can be handled by a single operator—and without requiring remote intervention
• how changing the boundaries between hybrid communications and hybrid data processing can create new services
Clearly, this book contains a lot of highly practical information that will help you with many on-the-job problems. The material in it is based on selected articles from Data Communications, arranged into cohesive units with a logical progression of information and depth.
A highly useful feature is the book's discussion of costs, which are so "important in the design and operation of any data communications network. However, because costs are always changing, they are presented for information and comparison, rather than being a true reflection of prices for today's equipment and services.
Filled with charts, diagrams, tables, and other quick comprehension aids, this volume will help you explore, contribute to, and participate in one of the most dynamic areas of electronics. Vissza