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近年来,随着电子计算机的广泛应用,计算机联机、计算机网络在国外已越来越普遍,我国也开展了这方面的工作,我们研制成功的PDP 11/34与DJS 130联机系统也是在这方面的一个初步尝试. PDP 11/34机是美国DEC公司生产的、功能较强的小型机,也是国外引进的具有代表性的小型机,而DJS130是我国自行设计制造、使用广泛的小型机,将这两台异种机组成联机系统,实现两机之间的数据传送,实现资源共享,对于充分发挥现有设备的作用,灵活地使用系统资源,具有一定的实际意义。我们研制的联机系统,属于非直接耦合系统,即在两台计算机之间配备有直接的通讯线路,彼此把对方看作是本身的输入输出设备,采用输入、输出操作就可以在两机之间实现信息传输.
In recent years, with the widespread application of electronic computers, computer online, computer networks in foreign countries has become more and more common, our country has also carried out this work, we have successfully developed PDP 11/34 and DJS 130 online system is also in this regard PDP 11/34 machine is the United States DEC company produced more powerful minicomputer, but also the introduction of foreign representative minicomputer, and DJS130 is our own design and manufacture of a wide range of minicomputer, the The two heterogeneous machines form an online system, which realizes the data transmission between two machines and realizes the resource sharing. It has certain practical significance for fully exerting the function of the existing equipment and flexibly using the system resources. The online system we developed belongs to non-direct coupling system, that is, there is a direct communication line between the two computers, each other regard each other as their own input and output devices, the input and output operations can be between the two machines Realize information transmission.