由于宽带的限制，在网络宽带受限的网络上，传输速度比较低使用较多，在网站宽带较高的局域网上，可以选择图像质量高的模式，把音频文件以流的形式返回到客户端。
由于 VOD 应用的特殊性，对服务器硬件的占用情况比较复杂，VOD 服务器的负载比其他应用服务器要重。所以在选择VOD 服务器时，要根据系统的需求和选择的软件情况来定，主要考虑的方面包括处理器、内存、磁盘和网络。
市场上现有的流媒体文件主要有：微软的WMV、苹果的Quick Time 和Real network 公司的Real system 三种主要的流媒体格式。其中由于微软的WMV 为免费系统，所以在市场中占据着主要的位置。
VOD 服务器软件也有多种选择，常用的包括：微软操作系统自带的Media Service 流媒体服务器。以及美萍VOD、Real system 格式的Helix Server 流媒体服务器和Apple 公司的Quick Time 等。
常用的客户端软件有：Windows Media、Winamp 和RealPlay 等。
当用户在网络上看电影时，不免常常会因为网络带宽的原因，不能达到同时传输同时播放的要求。所以能够先传输一部分数据在电脑中作为缓冲区进行播放，之后在实现数据的同传同播，以达到流畅的效果。缓冲时播放器的工作就是同点播服务器联接，并下载相应需求的数据到本地。
视频点播的工作过程为：用户在客户端启动播放请求，这个请求通过网络发出，到达并由服务器的网卡接收，传送给服务器。经过请求验证后，服务器把存储子系统中可访问的节目名准备好，使用户可以浏览到所喜爱的节目单。
以上就是小编对于服务器的解析和分析，希望这篇文章可以帮助大家，想要知道更多内容可关注新网。
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Bardzo podoba mi się twoja strona. Dziękuję za świetne informacje i zapraszam na stronę o samochodach. Do zobaczenia!
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