"This comprehensive text provides a clear and concise explanation of communications technology and the key telecommunications and computing concepts. Considerable attention has been paid to making the topics comprehensible and to convey understanding, not just data." "Essential reading for ANYONE who needs to appreciate the breadth of communications technology; it is a clear guide to this whole area. It is also aimed at the project manager, system analyst and software designer. Recommended reading for students in computer science, electrical & electronic engineering, IT and telecommunications courses."--Jacket.