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四、几种迅速发展的计算机网络计算机网发展初期,主要集中解决远程计算机通信和实现资源共享。ARPA 网的经验使人们看到:(1)本地信息的收集与分配占据了一个资源共享网络业务量的主要部分。例如,在1972年,每天 ARPA 网的平均业务量为1810千个分组,而大约四分之一是在节点内部传输的。这一现象开始还被认为是暂时的,是与人们在进行远距离传输之前进行局部试验有关,但是如表
Fourth, several rapid development of computer networks Early development of computer networks, mainly focused on remote computer communications and resource sharing. The experience of the ARPA network makes it possible to see: (1) The collection and distribution of local information occupies a major part of the volume of resource-sharing network traffic. For example, in 1972, the average daily ARPA network traffic was 1,810 thousand packets, while about one-quarter was transmitted internally within the node. This phenomenon is also considered to be tentative at the beginning, and it is related to the local experiments conducted before people transmit them over long distances. However,