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2. List of operating systems - Wikipedia

   en.wikipedia.org/wiki/List_of_operating_systems

   Business Operating System (BOS) – developed to be ported across microcomputers. EOS – developed by ETA Systems for use in their ETA-10 line of supercomputers. EMBOS – developed by Elxsi for use on their mini-supercomputers. GCOS – a proprietary operating system originally developed by General Electric.

3. Operating system - Wikipedia

   en.wikipedia.org/wiki/Operating_system

   A hobby operating system may be classified as one whose code has not been directly derived from an existing operating system, and has few users and active developers. [ 132 ] In some cases, hobby development is in support of a " homebrew " computing device, for example, a simple single-board computer powered by a 6502 microprocessor .

4. Kernel (operating system) - Wikipedia

   en.wikipedia.org/wiki/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 in memory [2] and ...

5. Comparison of open-source operating systems - Wikipedia

   en.wikipedia.org/wiki/Comparison_of_open-source...

   Comparison of operating systems. Comparison of Linux distributions. Comparison of BSD operating systems. Comparison of kernels. Comparison of file systems. Comparison of platform virtualization software. Comparison of DOS operating systems. List of operating systems. Live CD.

6. C (programming language) - Wikipedia

   en.wikipedia.org/wiki/C_(programming_language)

   C (pronounced / ˈsiː / – like the letter c) [6] is a general-purpose programming language. It was created in the 1970s by Dennis Ritchie and remains very widely used and influential. By design, C's features cleanly reflect the capabilities of the targeted CPUs. It has found lasting use in operating systems code (especially in kernels [7 ...

7. Comparison of operating systems - Wikipedia

   en.wikipedia.org/.../Comparison_of_operating_systems

   The article "Usage share of operating systems" provides a broader, and more general, comparison of operating systems that includes servers, mainframes and supercomputers. Because of the large number and variety of available Linux distributions, they are all grouped under a single entry; see comparison of Linux distributions for a detailed ...

8. Process (computing) - Wikipedia

   en.wikipedia.org/wiki/Process_(computing)

   Process (computing) In computing, a process is the instance of a computer program that is being executed by one or many threads. There are many different process models, some of which are light weight, but almost all processes (even entire virtual machines) are rooted in an operating system (OS) process which comprises the program code ...

9. System programming language - Wikipedia

   en.wikipedia.org/wiki/System_programming_language

   System programming language. A system programming language is a programming language used for system programming; such languages are designed for writing system software, which usually requires different development approaches when compared with application software. Edsger Dijkstra referred to these languages as machine oriented high order ...