IEEE 855-1990
IEEE Standard for Microprocessor Operating System Interfaces (MOSI)
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- Language: English
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About This Item
IEEE 855-1990 is the standard for Microprocessor Operating System Interfaces (MOSI), defining a technical framework for how software and system components interact at the operating-system level in microprocessor-based environments. It is relevant to computing and processing applications where interface consistency, compatibility, and predictable behavior matter. For engineers and technical teams, IEEE 855-1990 can help clarify interface expectations and reduce ambiguity during design, implementation, and evaluation of system software.
About IEEE 855-1990
IEEE 855-1990 addresses the interface layer between a microprocessor operating system and related system functions, making it a focused reference for MOSI-related design considerations. In practice, this type of standard is useful when defining how operating-system services should be accessed or coordinated within a microprocessor-based system. The specification supports clearer technical communication across development, integration, and testing activities by providing a common baseline for interface behavior and expectations.
Where is IEEE 855-1990 used?
IEEE 855-1990 is most relevant in computing and processing environments that rely on microprocessor-controlled systems and structured operating system interfaces. It may be used in embedded platforms, control-oriented computing equipment, and other systems where software must interact consistently with underlying operating-system services. The standard is also useful during specification review, procurement, and technical evaluation when teams need a clear reference for interface-related requirements in microprocessor-based designs.
Importance in practice
In practice, IEEE 855-1990 helps reduce uncertainty around operating-system interface expectations, which can improve consistency across development and verification work. A defined standard is valuable when comparing implementations, checking compliance, or coordinating work between hardware and software teams. For organizations that depend on stable microprocessor system behavior, IEEE 855-1990 supports more controlled design decisions, better test planning, and lower risk of integration mismatch. As an inactive standard, it is especially useful as a reference for legacy or historical technical documentation.
- Microprocessor operating system interfaces
- Computing and processing applications
- Interface consistency and integration
- Design, testing, and evaluation reference
- Legacy technical documentation support
- Publication Date: 1990
- Standard Status: Inactive
- Publisher: IEEE
- Subject: Computing and Processing; Components, Circuits, Devices and Systems
- Official IEEE: Doi link
- This Version: 855 (1990)
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