Abbreviated "OS", an operating system is software that provides the user with an interface as well as hardware support and support to run and use applications. Operating systems also accept input and display output by communicating with hardware and interacting with any respective applications or system software that might be using that hardware.
Windows, Windows NT, MacOS, UNIX, Novell Netware, DOS, BSD and BeOS are all examples of operating systems. Linux on the other hand, is a kernel.
by Gary Destruction June 21, 2003
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An operating system (OS) is the basic structure on which your computer runs. The most common operating systems used on Web servers are FreeBSD (UNIX), Windows®, Linux, and Solaris.
See Also: UNIX, FREEBSD
My operating system is Windows.
by Jak Dude May 06, 2005
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A combiniation of command interpreters which runs between the central processing unit and software that allow a users to interact with a computer or other electronic device. A phrase that can never refer to any Microsoft product. By its very definition, an operating system must operate, which is the complete opposite of any Microsoft product.
Linux, FreeDOS, DRDOS, BEOS, Unix, OS/400, are all operating systems.
by Kyle December 23, 2003
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Human Operating System, HOS is a system of operation or procedure of living of human beings, like religion, way of life in cities, belief, etc,.
Human Operating System, HOS is like DOS, the Disk Operating System of Personal Computers.

Religious way of life is like an operating system of human beings believing some religion to protect them and develop them to the highest levels of life with the most happiness and peace and health !
It is also comparable to Vegetarian-system of life.
It can also be LOS, a Living-beings' Operating System.

The HOS is researched and developed continuously for finding out and following the best possible practical way of life for achieving one's own goals in life !
It is to try leverage the co-operative power of communities for safe, healthy, prosperous and peaceful life of every one.
HOS can also be so simple as better ways for a human being to progress in life happily --
Sample Daily routine procedure like, Wake up early, drink plenty of water, finish toiletry & washing up, meditation or peaceful planning for the day ahead, break fast, safe travel, planned work in a good team spirit and respect for every fellow living being, humane leadership, healthy conclusion, safe-journey-home, washing-up, lovely chat with family members, dine together, relax , study, research, develop further and meditatively sleep early to get up early for another day of better life !
by faruqhsj July 09, 2011
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Prejudice that one operating system is inferior to another, usually to ones favorite operating system.

Such prejudice can arise when one is accustomed to a particular platform, whether he or she be end-user, or programmer. It can also occur, when there's too much diversity in a particular family of operating system, that one attempts (at no avail) to define the core (one might call soul) of it.
It's purely operating system racist when you chant socket over STREAMS, scream poll over select, advocate Linux over BSD, and trys to trump your Unix over Windows.
by DNJF March 15, 2017
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