There are over 4.3 billion Internet users around the world, over half the world´s population, but do we know how it works?It has been over 50 years since the Internet began to take its first steps –not even the people behind it were aware of the revolution it would bring–, and since then the global communications network has reached 4.3 billion users worldwide (over half the world's population). This invention has meant so much in our day-to-day lives that 60% of households around the world now count on the Internet as another member of the family. A revolution that had not been seen since radio started broadcasting.This global communication channel, which allows us to be in contact with any corner of the world, has thus become one of those everyday tools we only give importance to when it stops working properly due to a fault or an unexpected interruption....