Evolution of Windows OS. Windows Operating System was launched… | by Jeewantha Lahiru | Medium
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China launches its first open-source desktop operating system as it moves to cut use of US tech | The Straits Times
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A Brief History of Operating Systems | by Gal Ben-Tovim | PAI-TECH | Medium
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What was the first OS in the world? - Quora
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34 Years Ago, 28 Year Old Bill Gates Launched An Operating System That Made Him The World's Richest Man Today
History of operating systems - Wikipedia
This was Xenix, Microsoft's first operating system, before MS-DOS and Windows - Gearrice
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History of the Operating System - javatpoint
History of the Operating System - javatpoint
Operating system history | PPT
