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  1. Operating system - Wikipedia

    An operating system (OS) is system software that manages computer hardware and software resources, and provides common services for computer programs.

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  2. OS Definition & Meaning - Merriam-Webster

    The meaning of OS is bone.

  3. OS - Definition by AcronymFinder

    118 definitions of OS. Meaning of OS. What does OS stand for? OS abbreviation. Define OS at AcronymFinder.com.

  4. What is an Operating System (OS)? | Definition from TechTarget

    Oct 31, 2024 · An operating system (OS) is the program that, after being initially loaded into the computer by a boot program, manages all the other application programs in a computer. The …

  5. What Is an Operating System? - Computer Hope

    Apr 7, 2025 · An operating system or OS is software installed on a computer's hard drive that enables the computer hardware to communicate and operate with the computer software.

  6. Operating system (OS) | Definition, Examples, & Concepts

    Jan 16, 2026 · operating system (OS), program that manages a computer ’s resources, especially the allocation of those resources among other programs. Typical resources include the central …

  7. What does OS stand for? - Abbreviations.com

    Find out what is the full meaning of OS on Abbreviations.com! 'Open Source' is one option -- get in to view more @ The Web's largest and most authoritative acronyms and abbreviations …

  8. OS definition and meaning | Collins English Dictionary

    os in American English (ɑs ) noun Word forms: plural ossa (ɑsə ) Origin: L: see ossify a bone

  9. OS Definition & Meaning | Dictionary.com

    Origin of os 4 First recorded in 1840–50 as osar (plural); from Swedish ås (plural åsar ) “ridge (of a hill),” from Old Norse áss “thick pole or main beam; rocky ridge”

  10. What Does OS Stand For? All OS Meanings Explained

    OS commonly refers to Operating System, which is software that manages computer hardware and software resources and provides services for computer programs. Additionally, OS can …