Electronic devices designed to perform dedicated tasks are classified as embedded systems. Temperature controller of an AC or engine control unit of an automobile are examples of embedded systems. Therefore Ethernet or a WiFi interface can be found virtually in any embedded device. Embedded systems evolved in a disconnected world or these were required to perform in a disconnected domain. Embedded systems were typically developed with limited available resources of RAM, ROM and Processing power. The growth in microprocessors has fueled the development in embedded domain. The launch of operating systems like Android has changed the landscape of embedded domain altogether. Embedded systems are entering into a connected world regime called Internet of Things.
IoT regime will see an exponential increase in the number of connected devices in the next few years. By year 2020 the number of connected devices will surpass 30~40 billion.
Internet-of-Things (IoT) regime, where virtually every device will be connected and communicating over the internet will be using primarily SSL/TLS to secure communication.
Gartner's 2014 Hype Cycle for Emerging Technologies Maps the Journey to Digital Business puts Internet of Things (IoT) at the peak hype-curve.
The Internet of things and the technology ecosystem surrounding it are expected to be a $8.9 trillion market in 2020, according to IDC. According to IDC, the Internet of things will change everything and be "a new construct in the information and communications technology world." IDC put the Internet of things technology and services spending at $4.8 trillion in 2012 and expects the market to be $8.9 trillion in 2020 and have a compound annual growth rate of 7.9 percent.
