Top definition
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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Cleveland Steamer Plush

The vengeful act of crapping on a lover's chest while they sleep.

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2
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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The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

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3
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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Donkey Punch Plush

10" high plush doll.

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by Gary Destruction June 23, 2003
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Dirty Sanchez Plush

It does not matter how you do it. It's a Fecal Mustache.

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