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  2. ConceptDraw DIAGRAM - Wikipedia

    en.wikipedia.org/wiki/ConceptDraw_DIAGRAM

    ConceptDraw DIAGRAM is cross-platform compatible when running on macOS and Windows operating systems: files created on a computer power by macOS can be opened and edited on a Windows computer, and vice versa. [9] The Developer's end-user license agreement allows for cross-platform installation with a single license.

  3. OSI model - Wikipedia

    en.wikipedia.org/wiki/OSI_model

    The application layer is the layer of the OSI model that is closest to the end user, which means both the OSI application layer and the user interact directly with a software application that implements a component of communication between the client and server, such as File Explorer and Microsoft Word.

  4. Architecture of Windows NT - Wikipedia

    en.wikipedia.org/wiki/Architecture_of_Windows_NT

    The Windows NT operating system family's architecture consists of two layers (user mode and kernel mode), with many different modules within both of these layers.. The architecture of Windows NT, a line of operating systems produced and sold by Microsoft, is a layered design that consists of two main components, user mode and kernel mode.

  5. Dia (software) - Wikipedia

    en.wikipedia.org/wiki/Dia_(software)

    Dia has special objects to help draw entity-relationship models, Unified Modeling Language (UML) diagrams, flowcharts, network diagrams, and simple electrical circuits. It is also possible to add support for new shapes by writing simple XML files, using a subset of Scalable Vector Graphics (SVG) to draw the shape.

  6. Operating system abstraction layer - Wikipedia

    en.wikipedia.org/wiki/Operating_System...

    An operating system abstraction layer (OSAL) provides an application programming interface (API) to an abstract operating system making it easier and quicker to develop code for multiple software or hardware platforms. It can make an application less dependent on any one specific operating system.

  7. Operating system - Wikipedia

    en.wikipedia.org/wiki/Operating_system

    An operating system (OS) is system software that manages computer hardware and software resources, and provides common services for computer programs. Time-sharing operating systems schedule tasks for efficient use of the system and may also include accounting software for cost allocation of processor time , mass storage , peripherals, and ...

  8. OpenHarmony - Wikipedia

    en.wikipedia.org/wiki/OpenHarmony

    It is also an extensive collection of free software, which can be used as an operating system or in parts with other operating systems via Kernel Abstraction Layer subsystems. [ 3 ] [ 4 ] OpenHarmony supports various devices running a mini system, such as printers, speakers, smartwatches, and other smart device with memory as small as 128 KB ...

  9. Exokernel - Wikipedia

    en.wikipedia.org/wiki/Exokernel

    Exokernel is an operating system kernel developed by the MIT Parallel and Distributed Operating Systems group, [1] and also a class of similar operating systems. Operating systems generally present hardware resources to applications through high-level abstractions such as (virtual) file systems.