With the development of wide band and popularization of intellectualized service, digital TV service becomes diversified day by day with integrating live programs, entertainment, games, travel and business in one system.
With the development of social informatization, people are no longer satisfied with a single voice, TV or Internet service, and diversified business needs put forward higher requirements for network operators.
With the development of social informatization, people have more and more demand for information, such as VR, HDTV, HD video, 3D games, cloud computing, big data, Internet of Things, cloud storage, etc., and new applications emerge one after another.
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