Wireless advantage and disadvantage

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ecestar
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hello

can anyone helpe me about the wierless advantage and disadvantage

and give me any book title
 


And advantage or disadvantage as compared to what?
 


"The wireless" was the first name used for radio communication. The first practical uses of it were in 1897, when Guglielmo Marconi sent the first ship-to-shore telegraph message, and in 1899, when he established the first wireless telegraph company operating between England and France.
 


russ_watters said:
Wireless what?

Wireless Technologies !
 


jtbell said:
And advantage or disadvantage as compared to what?

compare with wire and optical .