24. August 2017

A young man enters a restaurant and sits at a table. The waitress comes around and he asks for the Wi-Fi password. You must be familiar with the scene. Yes, not only you and me, almost everybody seems to do so. It has become a common phenomenon that when we plan to stay for a while in a store or restaurant, the first thing we do is to ask for the Wi-Fi password. Wireless network really makes it convenient to get access to the network, because you do not need ethernet network cable. We know that...