Domestic prototypes of computer networks in air defence systems in the 50-60s of the last century.
The author considers the initial stage of the history of the telecommunications network with nodes for processing radar information of dynamic objects in real time. The conception of building operation computer systems in real-time to control processing. The architecture of complex functional software is represented for processing and communication of radar data in real time of dynamic objects in the global network, developed at SRI-5 of the USSR Ministry of Defence. Considerable attention is paid to the problems of dynamic testing and software testing, efficiency and dynamic use of computing resources in a computer network in real time.