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English definition of “open system”

open system

noun [C]
 
 
IT
a computer system that anyone can use: On an open system like the internet, the only way to keep data safe is to scramble it.
a computer system on which you can use programs that were designed to be used on other systems: The group has continued to invest substantial amounts in the development of its open system application software packages.
(Definition of open system from the Cambridge Business English Dictionary © Cambridge University Press)
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