Informatics A versatile, non-proprietary open operating system, which is the industry standard for mainframes, work stations and servers on the Internet, written in C programming language. See OS X. Cf MacOS, Windows.
According to Allen Brown, The Open Group's Chief Operating Officer, the availability of the Single UNIX Specification, Version 2 is the latest in a series of events that demonstrate the substantial investment and commitment of system vendors and software developers to the future growth and enhanced capability of the UNIX operating system.
The Single UNIX Specification brand program has achieved critical mass: vendors whose products have met the demanding criteria for and have been awarded the UNIX 95 brand now account for the majority of UNIX systems by value," said Brown.
This will result in products that conform to the next version of the Single UNIX Specification in about two years time.
The common 64-bit definition for UNIX application environments builds on X/Open's Single UNIX Specification (previously known as SPEC1170) by removing data size dependencies in the application programming interfaces (APIs).
The X/Open brand for UNIX 95 is awarded to products that conform to X/Open Company's Single UNIX Specification, the most comprehensive standard-based operating system specification available in the industry," said Mike Lambert, vice president and chief technical officer of X/Open Company Limited.
The UNIX 95 brand is the culmination of several years' effort, resulting in the development of X/Open Company's Single UNIX Specification (formerly known as SPEC 1170).
Announced at the same time was IBM's intent to comply with the full Single UNIX Specification in a future release of IBM AIX Version 4.
In order to be granted the right to use the X/Open UNIX 95 brand and name, products must implement the services as specified in the Single UNIX Specification, pass the X/Open test suites for compliance to the specification, and meet the conditions of the trademark license agreement.