In a computing context, an open system is an
open source operating system, typically composed of coordinated modular components from a number of sources and not reliant upon any
proprietary elements. Characteristics of
open systems include the exposure of the
source
code, which is thus available for understanding and possible modification and improvement;
portability, which allows the system to be used in a variety of environments, and
interoperability, which allows the system to function with other systems. According to the Open Systems Joint Task Force, an open system "uses widely supported and consensus-based standards for its key
interfaces, and has been subjected to successful validation and verification tests to ensure the openness of its key interfaces." Today,
Linux is generally considered a prime example of an open system.
In a more general context, an open system is one that accepts input from external sources and produces output. In the physical sciences, for example, an open system is one that matter and/or energy may enter and exit, such as a human body. A closed system, on the other hand, allows nothing to enter or escape its boundaries.
This was last updated in April 2005
Dig Deeper
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Open Compliance Program promises to make it easier to distribute infringement-free open source code.
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