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  2. Operating system - Wikipedia

    en.wikipedia.org/wiki/Operating_system

    A real-time operating system (RTOS) is an operating system intended for applications with fixed deadlines ( real-time computing ). Such applications include some small embedded systems, automobile engine controllers, industrial robots, spacecraft, industrial control, and some large-scale computing systems.

  3. Accessory navicular bone - Wikipedia

    en.wikipedia.org/wiki/Accessory_navicular_bone

    Type 1: An os tibiale externum is a 2–3 mm sesamoid bone in the distal posterior tibialis tendon. Usually asymptomatic. Type 2: Triangular or heart-shaped ossicle measuring up to 12 mm, which represents a secondary ossification center connected to the navicular tuberosity by a 1–2 mm layer of fibrocartilage or hyaline cartilage. Portions of ...

  4. What Is an Accessory Navicular Bone? - WebMD

    www.webmd.com/a-to-z-guides/what-is-an-accessory...

    Type 1. This leads to the formation of a small bone-like structure (measuring around 2 to 3 millimeters) within the part of the posterior tibial tendon that meets the navicular bone. This occurs ...

  5. What to Know About Spinal Muscular Atrophy Type 1 - Healthline

    www.healthline.com/health/spinal-muscular...

    Takeaway. Spinal muscular atrophy (SMA) type 1 is the most common and most severe form of SMA. Symptoms typically begin in the first 6 months of life. Life expectancy is less than 2 years without ...

  6. 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.

  7. Comparison of operating systems - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_operating...

    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. OD is an abbreviation for “oculus dexter” which is Latin for “right eye.”. OS is an abbreviation for “oculus sinister” which is Latin for “left eye.”. Your prescription might also ...

  9. Ubuntu - Wikipedia

    en.wikipedia.org/wiki/Ubuntu

    Ubuntu is built on Debian's architecture and infrastructure, and comprises Linux server, desktop and discontinued phone and tablet operating system versions. Ubuntu releases updated versions predictably every six months, and each release receives free support for nine months (eighteen months prior to 13.04) with security fixes, high-impact bug fixes and conservative, substantially beneficial ...