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Paul Allen and Bill Gates create Microsoft and sell their first product.
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Apple II is unveiled, the first personal computer in a plastic case with color graphics.
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MS-DOS operating system is introduced on the IBM computer
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Microsoft Windows graphical user interface is first announced.
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Apple starts selling the desktop computer Lisa
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The Macintosh is announced
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Office for Macintosh, version 1.o, hits the market
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Microsoft ships Windows 3.0
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Sells more than one million copies in four days
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Microsoft's Internet Explorer 4.0 gives users an unparalleled Internet client solution.