Top 10 Microsoft Moments

Windows 7 drops Oct. 22. With programmers everywhere hoping it will be better than Vista, TIME looks back at some of Microsoft's biggest wins — and its worst mistakes

Microsoft Office Released

Marty Lederhandler / AP
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Although Microsoft Word — developed for use with MS-DOS and later for the Apple Macintosh and Microsoft Windows — had been around since 1983, the first official version of the group of desktop applications (Excel, Powerpoint, Word) known as Microsoft Office was released in 1989 for the Mac. Despite a seemingly good working relationship between the two companies, just a year before, Apple had filed a suit against Microsoft claiming that its Windows interface was illegally similar to Apple's OS. The six-year court battle netted Apple a loss and effectively cemented Microsoft's reign as the world's leading computer software manufacturer.

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