Computer networks can also be classified according to the hardware technology that is used to connect the individual devices in the network such as Optical fibre , Ethernet , Wireless LAN , HomePNA , or Power line communication.
Ethernet uses physical wiring to connect devices. Often deployed devices are hubs, switches, bridges, and/or routers.
Wireless LAN technology is designed to connect devices without wiring. These devices use radio wavesas transmission medium.
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