单词 | open system |
释义 | open systemn. 1. A material system in which the total mass or energy fluctuates; (more widely) an incomplete or alterable system of concepts, doctrines, etc. ΘΚΠ the world > relative properties > order > [noun] > quality of being systematic > systematic arrangement > a system or scheme > specific types of system hierarchy1644 algebra1663 network1839 closed system1896 open system1939 1939 F. H. MacDougall Thermodynamics & Chem. (ed. 3) x. 134 When a transfer of matter to or from a system is also possible, the system may be called an open system. 1962 P. Strevens Papers in Lang. (1965) xii. 152 The study of closed-system items is what we conventionally call ‘grammar’, while the open systems constitute ‘lexis’. 1963 A. K. Rice Enterprise & its Environment iv. xx. 184 Open systems exist and can only exist by the exchange of materials with their environment... An open system can achieve a time-independent steady state. 1971 J. Z. Young Introd. Study Man ii. 26 Organisms are not stable systems..but ‘open’ systems maintained in a steady state by continual expenditure of energy. 1989 W. T. Singleton Mind at Work (BNC) 33 The organisation, like a living organism, maintains a dynamic equilibrium with the environment. Thus it is an open system rather than a closed one. 2. Computing. A computer system in which the components conform to non-proprietary standards rather than to the standards of a specific manufacturer. ΘΚΠ society > computing and information technology > software > [noun] > operating systems software supervisor1956 system program1956 software1958 system1958 systems program1960 operating system1961 monitor1962 system software1962 open system1981 1981 Electronics (Nexis) 25 Aug. 120 Open Systems Interconnection. What is new is that a network architecture has been specifically designed for Intel- and Ethernet-based equipment. 1986 E. L. Space in T. C. Bartee Digital Communications iii. 117 D-channel protocol layering follows the general layering principles of the reference model for open systems interconnection. 1996 Economist 23 Mar. 95/4 NCR was particularly strong in so-called open systems, especially computers running Unix. 2002 N.Y. Times 10 Mar. iii. 11/5 Mr. Gerstner had decided that I.B.M. would move to ‘open systems’. This entry has been updated (OED Third Edition, June 2004; most recently modified version published online March 2022). < n.1939 |
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