Human’s life was totally changed after the invention of Morse code since 1837, it allowed human to communicate with each other remotely. I was start to study aboard when I was 15 and I can communicate with my family at anytime because of telegraph. In recent years it is crazy that people can even have a video chat with their friend/family by your smartphone base on the developed technology. I can’t imagine what will happen if telegraph wasn’t invented, maybe I won’t go to Australia because it is impossible for me to travel to a new country alone when you can’t get in touch with my family/friends. According improvement of technology, mobile phone was not only used in voice communication, but also help us in different area of our life. To me, I am very honored to witness the process from telegraph to cyberspace and I am also very curious about what will happen when 5G come to our life.