说明：  ，人们提出了“服务质量”（Quality of Service，简称Q o S） 的概念。Q o S实际是一系列组件，允许对网上的数据进行不同处理，并可为其分配不同的优 先级。若一个网络具备Q o S功能，便可根据实际需要，对其进行配置
(People put forward the quality of service (Quality of Service, referred to as Q o S) concept. Q o S is actually a series of components, allow for online data of different treatments, and its distribution of different priority. If a network with Q o S function can be based on actual needs, their configuration)