What Are Wireless LAN Adapters?
A local area network (LAN) is a group of computers that are in close physical proximity and connected to one another to transfer data back and forth. One type of connection uses a wireless adapter, which eliminates the need for network cables.
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Appeal
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Wireless LANs evolved as a more convenient way to connect computers in the home or office. You don't have to drill holes through walls or lay down Ethernet cable.
Basics
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The wireless LAN adapter is a device installed inside the computer, or it can be an external device connected with a USB (Universal Serial Bus) cable. It is basically an antenna that tunes in to the network.
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Wireless Routers
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The wireless LAN "antenna" tunes in to a wireless router somewhat like a radio station, which all the computers on the network connect to so that they can "see" each other.
Ad Hoc Networks
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Alternatively, you can create an "ad hoc" network, which doesn't use a router or other hublike network device. However, this type of network might have trouble connecting more than one computer to a residential high-speed modem.
Wireless Modems
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You also can skip a router by tuning in the adapters to a nearby wireless modem. This device is physically attached to the network but receives wireless connections from an adapter.
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