That's the first time for me to take the course in English. It's unexpected for me, because my English is poor.
In this course, the teacher is Yao-Jen Chang. He introduced the history of communication in the world from 1876 to 2006. In my memories, there is a dail telephone in my grandfather's home. When I was young, I liked to listen the sound for that telephone. I also remember the fact that I fell out with my young brother when I studied in university, because I lost the phone call and did not take him by motorcycle when he went to bus station. However, I have two mobile phone device until now. My life is changed from improved technology.
