Wireless communication is one of the fastest growing technologies. The demand for connecting devices without the use of cables is increasing everywhere. Wireless LANs can be found on college campuses, in office buildings, and in many public areas.
Wifi (wireless fidelity) has brought a new dimension in the field of wireless networking. The transmission of data is done through the radio waves in the free space. It cuts down the cost of laying down the cables for network connections. The systems which are wifi enabled are mobile and can be used anywhere in the range of the network.
Wireless router.
Router is a connecting device, which receives the data from the source and route the data to its destination. Wireless routers refer to the devices in the wireless network, which receives the signal from a source and rout the signal to its destination by examining its SSID. Routers are generally used to interconnect two networks.
A wireless card.
Some systems which do not have in built wifi devices so they need an external interface card which connects the wifi device (a transmitting device) to the system. These cards can be connected to the PCI slot...
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