You probably use Wi-Fi all the time to connect to the internet through your laptop tablet or phone. It's easy. Wi-Fi hotspots surround you as you go through your day - from school to a pizza place or coffee shop and then back home. Not so long ago the internet wasn't as accessible.
Find out how Wi-Fi works how it became commonplace and what it might do for you in the future.
Buy How Does Wi-Fi Work? by Mark Weakland from Australia's Online Independent Bookstore, BooksDirect.