Both Wi-Fi and mobile data are two great inventions that make our lives easier and allow us to see content instantly. As the phrase says, "Information is power." Wifi: We all use it, but we don't know where it comes from, nor where it goes. To begin with, the full name is Wi-Fi Alliance (Wai-Fai in English), it is a company formed by an alliance between the companies 3Com, Airones, Intersil, Lucent Technologies, Nokia and Symbol Technologies, together they created this wireless connection mechanism (IEEE 802.11b Direct Sequence) back in 1999, relatively recently. How did it come about? It really was not invented that way because yes, there was a great need in the face of the great growth of the internet since people needed something stable for home and that allowed them to connect their devices without a lot of cables. That does not mean that today we have forgotten the cables, the devices that are fixed must carry cable since in this way their signal does not lose qu...