A system-on-a-chip (SoC) is a microchip with all the necessary electronic circuits and parts for a given system, such as a Smartphone or wearable computer, on a single integrated circuit (IC). Let say for example for an Iris scanner, it includes a microcontroller, an encoder and a decoder, memory, Input output logic control for a user on a single chip. Intel’s Curie, a SoC based on the Intel Quark SE, is the size of a shirt button but includes everything required to provide compute power for wearable devices.