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In 1986 Microsoft invented their own operating system it was called MS-DOS. This disk operating system was an operating system for x86 based personal computers. MS-DOS was the main operating system for IBM PC compatible personal computers.
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IBM and Microsoft were developing an operating system called OS/2. This system was intended to protect the computer from more harmful threats. It was also said to allow more applications, such as text applications. OS/2 is no longer produced, production stopped in 2006.
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Windows came out with windows 3.0 to improve the graphics interface, and an improved protected mode. This release started the rivalry with apple because it soon beat out the macintosh.
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Windows 95 released pre-emptive multitasking, and yet again improved the interface. This also included 32-bit compatability. Windows 95 integrated MS-DOS and other windows products
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This operating system was made especially for those whose computers had low memory. This operating system was intended for handheld devices and so on.
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Windows XP allows use of personal computers. This allowed people to use XP on laptops and desktops. This was the first consumer-oriented operating system produced by Microsoft
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