Writing. Long ago, people kept in touch each other by sending letters, as the time passes, people could be able to make calls, this was possible thanks to an awesome invention, the phone, at the beggining was very heavy and ugly but very useful for the people. Nowadays, the cellphone is the most important invention because it's very slender, practical, pretty and it works as well as a computer. The most use the cellphone for everything. On the other hand, the cellphone has changed the people's everyday life as much as people doesn't care about taking long walks at the park with their families anymore. Now, they prefer to chat and surf on the internet every time.