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... y.
But at present, the broadband network speed of most families is only 200M or 400M broadband. This network speed is too weak compared to the theoretical 500M broadband of 55M per second.
So modifying the line is troublesome and requires a lot of money. With 4G+ mobile communication, there is really not much need for wireless optical communication.
As for mobile phones using cloud computing, wireless optical communications starting with 200M broadband can use cloud c ...
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Chapter 54 (END)
~ Postscript plus new book
