Wifi works by transmitting pulsed microwaves at a frequency of 2.45 GHz. This form of radio frequency radiation is capable of delivering information via the internet and intranet to personal computers or laptops.
The alternative is cabled connection. For busy teachers, wifi means ‘have laptop, can travel’ – between classrooms, playgrounds, staffroom and offices. Wherever students or teachers are, with the flick of a button they can log on!