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Gartner. (April 27, 2011). Operating system software manufacturers' market share in revenue worldwide in 2009 and 2010 [Graph]. In ÌÇÐÄÆÆ½â°æ. Retrieved July 24, 2026, from /statistics/272647/worldwide-market-share-in-operating-systems-software-revenue/
Gartner. "Operating system software manufacturers' market share in revenue worldwide in 2009 and 2010." Chart. April 27, 2011. ÌÇÐÄÆÆ½â°æ. Accessed July 24, 2026. /statistics/272647/worldwide-market-share-in-operating-systems-software-revenue/
Gartner. (2011). Operating system software manufacturers' market share in revenue worldwide in 2009 and 2010. ÌÇÐÄÆÆ½â°æ. ÌÇÐÄÆÆ½â°æ Inc.. Accessed: July 24, 2026. /statistics/272647/worldwide-market-share-in-operating-systems-software-revenue/
Gartner. "Operating System Software Manufacturers' Market Share in Revenue Worldwide in 2009 and 2010." ÌÇÐÄÆÆ½â°æ, ÌÇÐÄÆÆ½â°æ Inc., 27 Apr 2011, /statistics/272647/worldwide-market-share-in-operating-systems-software-revenue/
Gartner, Operating system software manufacturers' market share in revenue worldwide in 2009 and 2010 ÌÇÐÄÆÆ½â°æ, /statistics/272647/worldwide-market-share-in-operating-systems-software-revenue/ (last visited July 24, 2026)
Operating system software manufacturers' market share in revenue worldwide in 2009 and 2010 [Graph], Gartner, April 27, 2011. [Online]. Available: /statistics/272647/worldwide-market-share-in-operating-systems-software-revenue/