3G/4G
3G is the network expansion which allowed direct internet connections, Wideband data access, simultaneous voice, data, music, and telephone, plus network based apps all rolled into one. 3G is the network which allows you to use the cell phone as a credit card. 3G refers to the third generation of mobile telephony technology. The third generation, as the name suggests, follows two earlier generati
ons.
Bluetooth
Bluetooth technology was designed primarily to support simple wireless networking of personal consumer devices and periherals, including cell phones, PDAs, and wireless headsets. Wireless signals transmitted with Bluetooth cover short distances, typically up to 30 feet (10 meters). Bluetooth devices generally communicate at less than 1 Mbps
Network Interace Cards (NIC)
¨In computer networking, a NIC provides the hardware interface between a computer and a network. Some NIC cards work with wired connections while others are wireless. Most NICs support either wired Ethernet or Wi-Fi wireless standards. Ethernet NICs plug into the system bus of the PC and include jacks for network cables, while Wi-Fi NICs contain built-in transmitters / receivers (transceivers)of the unit.
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