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Wireless Network Interface Card




A WNIC is an essential component for wireless Desktop Computer . This card uses an Antenna to communicate through Microwaves . A WNIC in a desktop computer is mostly located in the PCI slot. Other options are USB WNIC, PCMCIA WNIC and integrated WNIC.

A WNIC can operate in two modes known as infrastructure mode and ''' Ad Hoc Mode '''.

In an infrastructure mode network the WNIC needs an s in an infrastructure mode network connect to an access point. All nodes connecting to the access point must have the same Service Set Identifier (SSID) as the access point, and if the access point is enabled with WEP they must have the same WEP key or other Authentication parameters.

In an ad-hoc mode network the WNIC doesn't require an access point, but rather can directly interface with all other wireless nodes directly. All the Peer Node s in an ad-hoc network must have the same Channel and SSID.