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当人们厌倦了枯燥而难记的DOS命令时,人们义无反顾地选择了图形界面的Windows;当人们对自己桌面电脑上单调的文字和少的可怜的图片感到乏味时,人们又不约而同地想起了多媒体——图文声像及视频的多种信息载体的组合;而让更多的人通过网络分享生动的图文多媒体及视音频影像,无疑将是信息通讯的又一次革命。那么什么是多媒体网络呢?多媒体+网络=多媒体网络?事实上问题没有那么简单。网络结构中的多媒体数据以实时数据流的形式传输,同传统的文件数据不同,多媒体数据流一旦开始传输,它就必须以稳定的速率传送到桌面电脑上,以保
When people are fed up with boring and hard-to-remember DOS commands, people are turning to Windows with a graphical interface; when people are dull with monotonous text and few poor pictures on their desktops, people spontaneously think of multimedia - a combination of multiple audiovisual and video information carriers; and letting more people share vivid multimedia and video and audio and video through the Internet will undoubtedly be another revolution in information and communication. So what is a multimedia network? Multimedia + Network = Multimedia Network? In fact the problem is not that simple. The multimedia data in the network structure is transmitted in the form of real-time data stream. Unlike the traditional file data, once the multimedia data stream begins to be transmitted, it must be transmitted to the desktop computer at a steady rate