3G generation mobile communications is a generation of standards for mobile phones and mobile communication services can be used over the whole world with international mobile communications.
4G -
Is the fourth generation. It is a successor to the 3G and 2G. A 4G system is expected to provide a secure IP based mobile broadband laptop computer wireless modems, smart phones, and other mobile devices.
Wireless/Bluetooth -
Bluetooth is a open wireless technology standard for exchanging data over short distances.
Wireless -
Wireless is the transfer of information between two or more points that are physically not connected. Distances can be short, as a few meters or long ranging from thousands to millions of kilometres.
Network Interface Cards (NIC) -
A network interface card is a computer hardware component that connects a computer to a computer network. Most Network interface cards are designed for a particular type of network, media, although some can serve multiple networks.
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