Bluetooth is a system that phones use to send files to other phones. Much like Streetpass/Spotpass on the 3DS, if you have bluetooth turned on on your phone and another person has bluetooth on on their phone and is close enough to you, you can send them files wirelessly without the use of the internet.
WiFi means Wireless Fidelity, and it is where a wireless internet connection is emitted from a box that is connected to the internet by broadband. People can use the WiFi by connecting to it using a password (but in some cases, none is needed)
3G is similar to Bluetooth, except that it connects to the internet rather than to other phones. It works mainly on IPads and Ipods and other Apple products.
Infrared is used in TV remotes and other controllers. The TV/Console sends signals to the remote/controller and then they send commands back, to change channel or to make Kitana unleash a Fatality on Sub-Zero.
www. a very good start.
ReplyDeleteebi
you now cover infra-red, 3g, and SMS and explain what they are for and the likely range of each.