Definition of the Internet of Things
One should look at some of these claims with a degree of skepticism. It is nearly impossible to quantify the exact number of devices that are Internet-connected. Additionally, we have to separate those devices that are naturally Internet-connected like smartphones, PCs, servers, network routers, and IT infrastructure. We should also not include in the realm of IoT those machines that have had presence in offices, homes and workplaces for decades that are essentially connected through some form of networking. We do not include office printers, copiers, or scanners as part of the IoT spectrum.
This book will examine IoT from the perspective of connecting devices that have not necessarily been connected to each other or the Internet. These devices may have historically not had much if any computational or communication abilities. By that, we imply that devices historically have had cost, power, space, weight, size, ...
