Doubt regarding the Ethernet cable

[bhaazee]

Today I am seeing quiet a number of home appliances or entertainment devices (Eg. NEST Module) plugged-in to the Ethernet cable. Since I don't have much knowledge on this topic I have a little doubt.

Just consider the example of NEST. In case, I have a NEST device installed in every room of my house, is it necessary to run the Ethernet cable from the router to every room of my home? Or is there some other way?

Regards

 

[MATLABdude]

Short of not connecting them to the network, you could use bridging adapters:
http://howto.cnet.com/8301-11310_39...r-ethernet-only-gadgets-on-your-home-network/