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随着信息社会的到来,越来越多的人对于建立计算机网络产生了极大的兴趣和强烈的要求。为了迎接即将到来的第四次产业革命,迫使我们尽快地建立计算机网络。建立计算机网络的一个十分突出的问题就是数据传输的媒介问题。根据我国目前的具体情况,在近期内,还不可能建立起专门用于数据传输的数据交换网,至于是否能利用上海市现有的市话网进行计算机数据通信,也是众说纷云,意见不一。最近我所在进行一系列试验的基础上,建成了一个实用的计算机星形网络。这个实用网最大的通信距离为25.4公里,其间跨经了七个电话分局。实际使用证明,上海市话网在目前是基本上能进行实用的数据传输的。
With the advent of the information society, more and more people have had great interest and strong demand for establishing a computer network. In order to meet the forthcoming Fourth Industrial Revolution, we are forced to establish a computer network as soon as possible. One of the most prominent problems in setting up a computer network is the media problem of data transmission. According to the current situation in our country, in the near future, it is impossible to set up a special data exchange network for data transmission. Whether or not to utilize the existing local telephone network in Shanghai for computer data communications is also a matter of opinion and disagreement. . Based on a series of experiments that I conducted recently, a practical computer star network has been built. The maximum communication distance of this utility network is 25.4 kilometers, during which time it has gone through seven telephone branches. The actual use of proof, Shanghai, then the current network is basically able to carry out practical data transmission.