You may forget where you left your keys when you need them. In ubiquitous computing space your keys will find you and inform you where they are. Ubiquitous computing, the third generation of computing spaces, following mainframes and personal computers, is in its incipient evolution steps. In ubiquitous computing space, sensors and computing nodes are invisibly, inconspicuously, and overwhelmingly embedded in all real-world objects and are all connected to each other through omnipresent wireless networks. The goal is to make real-world objects seem intelligent and autonomous in providing users with electronic and Internet services with users not even noticing how they are provided with these services. The real world, cyberspace, modeling, and mathematics are identified as the main constituents of ubiquitous computing in this study. These four areas are investigated one-by-one and in combination to show how they create a solid foundation for ubiquitous computing. An application of ubiquitous computing in car navigation systems is used to indicate the reliability of the proposed framework.
