P3.
Net work protocol;
a way to send and receive information and data over a wireless network.
Short range protocol.
IrDA = infrared.
Bluetooth
you have to be close to another device to use it and phones computers tablets ipod all use blutooth, most devices don’t use IrDA anymore
3G
The term 3G refers to the third generation of mobile phone standards, as set by the International Telecommunications Union (ITU). 3G technologies allow mobile operators to offer more service options to their users, including mobile broadband.
Recent 3G releases, often denoted 3.5G and 3.75, also provide mobile broadband access of several Mbit/s to smartphones and mobile modems in laptop computers.
3G finds application in wireless voice telephony, mobile Internet access, fixed wireless Internet access, video calls and mobile TV.
bbm
bbm is a blackberry messenger, which a faster way to text and can only have on a blackberry.
whatsapp is like bbm which you can get on all phones with wifi.
