  I feel that I have been very lucky since I have experienced the most dynamic
30 years on electronics in the past. I think that the most visible change in
our daily life over the past 30 years is communications. From computer modems,
to internet, and to smart phones, people now feel much less lonely or bored
since they are always connected. In this article, I would like to share with
you on my own experience working on communications in the past decades.
