Microsoft became the dominant player in personal computer operating systems through the release of MS-DOS for the IBM PC. Microsoft would go on to license DOS to the many manufacturers building PC clones, eventually reaching a market share upwards of 90% in the personal computer operating system space. MS-DOS was the dominant personal computer operating system of the 1980s and early 1990s. All early versions of Windows were built on top of it. Yet, today, young computer users are often not even aware it existed. What was MS-DOS? Where did it come from? What is its legacy? All of that and some good stories in this episode of Kopec Explains Software.

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