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Systems design is a process of defining and engineering the architecture, methods, and interfaces necessary to accomplish a goal or fulfill a set of requirements. In open systems architecture, the design includes intentional provisions to make it possible to expand or modify the system at a later stage after initial operation.
Open architecture is a type of computer architecture or software architecture intended to make adding, upgrading, and swapping components with other computers easy. [1] For example, the IBM PC , [ 2 ] Amiga 2000 [ 3 ] and Apple IIe have an open architecture supporting plug-in cards, whereas the Apple IIc computer has a closed architecture .
The Open Systems Interconnection (OSI) model is a reference model from the International Organization for Standardization (ISO) that "provides a common basis for the coordination of standards development for the purpose of systems interconnection."
Open systems are computer systems that provide some combination of interoperability, portability, and open software standards. (It can also refer to specific installations that are configured to allow unrestricted access by people and/or other computers; this article does not discuss that meaning).
Open-system environment (OSE) reference model (RM) or OSE reference model (OSE/RM) is a 1990 reference model for enterprise architecture. It provides a framework for describing open system concepts and defining a lexicon of terms, that can be agreed upon generally by all interested parties.
RISC-V – an open-source hardware instruction set architecture ; MIPS – a reduced instruction set computer (RISC) instruction set architecture; Color Maximite – open-source single-board computer running the BASIC language as its operating system and compatible with Arduino Uno micro-controller peripherals; Humane Reader and Humane PC
An instruction set architecture (ISA) is an abstract model of a computer, also referred to as computer architecture.A realization of an ISA is called an implementation.An ISA permits multiple implementations that may vary in performance, physical size, and monetary cost (among other things); because the ISA serves as the interface between software and hardware.
Open system of learning, where information is sourced from multiple sources; Open government, system; Open-system environment reference model, one of the first reference models for enterprise architecture; Open Distribution system (Example: Peer-to-peer file sharing system)