7 1 What is Embedded System University of Electronic Science Technology of China(UESTC) Pervasive Computing(Ubiquitous Computing) Pervasive computing is the trend towards increasingly ubiquitous,connected computing devices in the environment,a trend being brought about by a convergence of advanced electronic(particularly wireless) technologies and the Internet. Real-Time System Lab LIAO Yong7 Real-Time System Lab LIAO Yong University of Electronic Science & Technology of China (UESTC)  Pervasive Computing(Ubiquitous Computing) Pervasive computing is the trend towards increasingly ubiquitous, connected computing devices in the environment, a trend being brought about by a convergence of advanced electronic (particularly wireless) technologies and the Internet. …… 1 What is Embedded System