There is a requirement to deal with hardware, both at the simple level of cables and phone cords, and up through modems, multiplexers and PADs. Most, however, stop short at the phone jack. Some, however, may actually want to know. There are remarkably few sources outside of professional or engineering references. Thus, it is very heartening to find that this book is not merely a source of information, but is written clearly and presented well.
Illustrations are illustrative and organization is thorough.
We data mavens are remembered with chapters on digital transmission, modem and facsimile. The material is lucid and, at all points, within reach of the intelligent novice. This is, by no means, written specifically for the data professional. Anyone with an curiosity for what is inside a telephone will be interested.