Open systems are computer systems that provide either interoperability, portability, or freedom from proprietary standards, depending on user's perspective. Interoperability can be defined in a technical way or in a broad way, taking into account social, political and organizational factors. ... In computer science, porting is the adaptation of a piece of software so that it will function in a different computing environment to that for which it was originally written. ... Proprietary software is software that has restrictions on using and copying it, usually enforced by a proprietor. ...
For years the term was applied loosely to the many flavors of Unix. Since the emergence of The Open Group's Single UNIX Specification, any operating system that supports the Unix APIs (z/OS, for example) can reasonably be classed as an open system. Wikibooks has more about this subject: Guide to Unix Unix or UNIX is a computer operating system originally developed in the 1960s and 1970s by a group of AT&T Bell Labs employees including Ken Thompson, Dennis Ritchie, and Douglas McIlroy. ... The Open Group is a vendor- and technology- neutral industry consortium with a vision of Boundaryless Information Flow that will enable access to integrated information within and between enterprises based on open standards and global interoperability. ... The Single UNIX Specification (SUS) is the collective name of a family of standards for computer operating systems to qualify for the name Unix. The SUS is developed and maintained by the Austin Group, based on earlier work by the IEEE and The Open Group. ... API may refer to: In computing, application programming interface In petroleum industry, American Petroleum Institute In education, Academic Performance Index This page concerning a three-letter acronym or abbreviation is a disambiguation page — a navigational aid which lists other pages that might otherwise share the same title. ... z/OS Welcome Screen seen through a terminal emulator The title of this article begins with a capital letter due to technical limitations. ...
Unix vendors for years used the term as a marketing advantage — who, after all, doesn't want an "open system"? The term gained particular traction in opposition to 1970s and 1980s vintage IBM mainframes. However, in a remarkable turnabout, Linux-oriented vendors are now claiming the term as their own. Consequently the IBM mainframe with its open sourceLinux on zSeries is now widely regarded as a truly open system — it runs more Linux instances than any server, after all — while servers running proprietary, closed source UNIX and Microsoft Windows are not. In fact, this new market pressure has encouraged Sun Microsystems to start opening up the source code to its Solaris UNIX operating system. An IBM mainframe is a large, high-performance computer made by International Business Machines (IBM). ... Unix systems filiation. ... Open source refers to projects that are open to the public and which draw on other projects that are freely available to the general public. ... Linux on zSeries (or Linux on System z9) is the preferred collective term for the Linux operating system and GNU/Linux software compiled to run on IBM mainframes, especially zSeries servers. ... The text below is generated by a template, which has been proposed for deletion. ... Microsoft Windows is a series of popular proprietary operating environments and operating systems created by Microsoft for use on personal computers and servers. ... Sun Microsystems, Inc. ... Source code (commonly just source or code) is any series of statements written in some human-readable computer programming language. ... This article or section contains information that has not been verified and thus might not be reliable. ... An operating system is a special computer program that manages the relationship between application software, the wide variety of hardware that makes up a computer system, and the user of the system. ...
Since the emergence of The Open Group's Single UNIX Specification, any operating system that supports the UnixAPIs (z/OS, for example) can reasonably be classed as an opensystem.
In computing, an opensystem (computing) is a computer operating system that provides interoperability, portability or both, particularly Unixsystems.
In management science, an opensystem (system theory) is a system that takes in (raw materials, capital, skilled labor) and converts them into goods and services (via machinery, human skills) that are sent back to that environment, where they are bought by customers.
In the physical sciences, an opensystem (system theory) is a system where matter or energy can flow into and/or out of, in contrast to a closed system, where no energy or matter may enter or leave.
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