Types of Computer Operating Systems?

There are several operating systems, however must of them are under Windows. Starting from old to new, there is Windows CE, Windows 3.x (series included 3.0, 3.1 , 3.11 and so on), Windows 95, 98, 98 SE, Windows ME, Windows NT, Windows 2000, Windows XP, Vista and 7. There is also Linux and the different versions, MAC Operating system, MS-DOS, IBM OS/2 Warp and Unix with different versions. Most .
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