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2. 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 other ...

3. System software - Wikipedia

   en.wikipedia.org/wiki/System_software

   System software was usually supplied by the manufacturer of the computer hardware and was intended to be used by most or all users of that system. Many operating systems come pre-packaged with basic application software. Such software is not considered system software when it can be uninstalled without affecting the functioning of other ...

4. Software - Wikipedia

   en.wikipedia.org/wiki/Software

   The application software layer interfaces with the operating system, which in turn communicates with the hardware. The arrows indicate information flow. There are two main types of software: Operating systems are "the layer of software that manages a computer's resources for its users and their applications". [10]

5. Kernel (operating system) - Wikipedia

   en.wikipedia.org/wiki/Kernel_(operating_system)

   Kernel (operating system) The kernel is a computer program at the core of a computer 's operating system and generally has complete control over everything in the system. The kernel is also responsible for preventing and mitigating conflicts between different processes. [1] It is the portion of the operating system code that is always resident ...

6. Unix - Wikipedia

   en.wikipedia.org/wiki/Unix

   By including the development environment, libraries, documents and the portable, modifiable source code for all of these components, in addition to the kernel of an operating system, Unix was a self-contained software system. This was one of the key reasons it emerged as an important teaching and learning tool and has had a broad influence.

7. Open-source software - Wikipedia

   en.wikipedia.org/wiki/Open-source_software

   This is an accepted version of this page This is the latest accepted revision, reviewed on 12 September 2024. Software licensed to ensure source code usage rights Open-source software shares similarities with free software and is part of the broader term free and open-source software. For broader coverage of this topic, see Open-source-software movement. It has been suggested that this article ...

8. History of operating systems - Wikipedia

   en.wikipedia.org/wiki/History_of_operating_systems

   Because of its utility, it inspired many and later became one of the roots of the free software movement and open-source software. Numerous operating systems were based upon it including Minix, GNU/Linux, and the Berkeley Software Distribution. Apple's macOS is also based on Unix via NeXTSTEP [11] and FreeBSD.

9. Software system - Wikipedia

   en.wikipedia.org/wiki/Software_system

   A software system is a system of intercommunicating components based on software forming part of a computer system (a combination of hardware and software). It "consists of a number of separate programs, configuration files, which are used to set up these programs, system documentation, which describes the structure of the system, and user documentation, which explains how to use the system".