This comprehensive text provides a clear and concise explanation of communications technology and the key telecommunications and computing concepts. Written in an accessible style, considerable attention has been paid to making the topics comprehensible and to convey understanding, not just data. * Enables the reader to extend their knowledge of communications technology * Details the ideas that are both current and evolving in communication systems * Allows the non-expert to question both accurately and in-depth whilst providing context for the specialist and detail for the generalist * Offers advice to the network and telecommunications specialist This is essential reading for anyone who needs to appreciate the breadth of communications technology. It is also aimed at the project manager, system analyst and software designer and will be a useful text for final year and postgraduate students on computer science, electrical engineering, IT and telecommunications courses..