In common parlance, the Internet of Things refers to a new kind of world where almost all the devices and appliances that we use are connected to a network. We use these capabilities to query the state of the object and to change its state if possible. defines the Internet of Things as a paradigm in which computing and networking capabilities are embedded in any kind of conceivable object. The digital world interacts with the physical world using a plethora of sensors and actuators. define the Internet of Things as simply an interaction between the physical and digital worlds. Let us look at two of the most popular definitions. This term has been defined by different authors in many different ways. We are entering an era of the “Internet of Things” (abbreviated as IoT). We are now entering an era of even more pervasive connectivity where a very wide variety of appliances will be connected to the web. Today the Internet has become ubiquitous, has touched almost every corner of the globe, and is affecting human life in unimaginable ways. As compared to similar survey papers in the area, this paper is far more comprehensive in its coverage and exhaustively covers most major technologies spanning from sensors to applications. This survey paper proposes a novel taxonomy for IoT technologies, highlights some of the most important technologies, and profiles some applications that have the potential to make a striking difference in human life, especially for the differently abled and the elderly. In this paper, we survey state-of-the-art methods, protocols, and applications in this new emerging area. The Internet of Things (IoT) is defined as a paradigm in which objects equipped with sensors, actuators, and processors communicate with each other to serve a meaningful purpose.