What is wi-fi and how does it work?
Hi,
Sorry to sound so stupid, but what exactly is wi-fi and how does it work? I'm wanting to buy a laptop as I'm working away from home and need to have broadband internet access, but I'm not entirely sure if this is possible without a landline connection. I'm under the impression that wi-fi enabled laptops can access the internet without a landline, provided you can receive a signal from some kind of wi-fi 'hotspot'.
Firstly, is this actually true, or am I under a misapprehension? Secondly, how common are these 'hotspots'? And finally, is there any kind of charge for using this sort of service? I find it too good to be true that genuinely free broadband is widely accessible.
Thanks for your help.