Digital electronic circuits are the underlying basis of the computer. And analog electronic circuits are also essential to our daily life, which have been used in devices for human-computer interaction. There is no difference of physical characteristic between the both circuits if you look at the micro point of view. But looking at the macro point of view, the both circuits have clear differences. Analog circuits are designed focusing on the effective use of electricity as energy, while digital circuits are used for transmitting and processing of electrical information. This course trains students to learn the basics of both of the analog electronic circuit and the digital electronic circuit systematically, which are essentials to understand computer architecture, sensors and electronic actuators.