code system — кодовая система
automated system control — асу
ethical system — система этики
system hole — ошибка в системе
bad system — система с ошибками
English-Russian dictionary of Information technology. 2005.
Packet switching — is a digital networking communications method that groups all transmitted data – regardless of content, type, or structure – into suitably sized blocks, called packets. Packet switching features delivery of variable bit rate data streams… … Wikipedia
Packet switched network — A Packet Switched Network, or PSN, refers to the packet switched networks that existed before the Internet. The history of such networks can be divided into three eras:early networks before the introduction of X.25 and OSI,the X.25 era when many… … Wikipedia
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Data link layer — The OSI model 7 Application layer 6 Presentation layer 5 Session layer 4 Transport layer 3 Network layer 2 … Wikipedia
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