介绍了云计算的基本原理和核心技术，阐述了云计算在广播电视网中数字电视互动的技术应用。分析了云计算在广电行业中的典型应用，云计算模式通过整合广电系统中的计算资源，将各种应用建在云端，降低了终端的要求，同时能够有效地扩展和升级，推进三网融合。% The basic principle and the key technologies of cloud computing are introduced. The technology application of cloud computation in the digital television interaction of broadcast &TV networks is elaborated. The typical application of cloud computation in broadcast &TV industry is analyzed. By integrating the computing resources in broadcast &TV networks,the cloud computing mode can construct the applications in the clouds,reduce the terminal requirements,realize the effective ex⁃pansion and upgrade simultaneously,and promote the three⁃network fusion.
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