Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • A trademark for a computer operating system.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • Microsoft Disk Operating System, an operating system for IBM-compatible personal computers in the 1980s and 1990s, eventually succeeded by standalone versions of Microsoft Windows.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. an operating system developed by Bill Gates for personal computers

Etymologies

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