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The first version of Microsoft Word was developed by Charles Simonyi and Richard Brodie, former Xerox programmers hired by Bill Gates and Paul Allen in 1981. Both programmers worked on Xerox Bravo, the first WYSIWYG (What You See Is What You Get) word processor. The first Word version, Word 1.0, was released in October 1983 for Xenix and MS-DOS; it was followed by four very similar versions that were not very successful. The first Windows version was released in 1989, with a slightly improved interface. When Windows 3.0 was released in 1990, Word became a huge commercial success. Word for Windows 1.0 was followed by Word 2.0 in 1991 and Word 6.0 in 1993. Then it was renamed to Word 95 and Word 97, Word 2000 and Word for Office XP (to follow Windows commercial names). With the release of Word 2003, the numbering was again year-based. Since then, Word 2007, Word 2010, and most recently, Word 2013 have been released for Windows. In 1986, an agreement between Atari and Microsoft brought Word to the Atari ST.〔(Atari announces agreement with Microsoft )〕 The Atari ST version was a translation of Word 1.05 for the Apple Macintosh; however, it was released under the name Microsoft Write (the name of the word processor included with Windows during the 80s and early 90s).〔(Feature Review: Microsoft Write )〕〔(Today's Atari Corp.: A close up look inside )〕 Unlike other versions of Word, the Atari version was a one time release with no future updates or revisions. The release of Microsoft Write was one of two major PC applications that were released for the Atari ST (the other application being WordPerfect). Microsoft Write was released for the Atari ST in 1988. In 2014 the source code for Word for Windows in the version 1.1a was made available to the Computer History Museum and the public for educational purposes. ==Word 1990 to 1995== The first version of Word for Windows was released in 1990 at a price of US$498, but was not very popular as Windows users still comprised a minority of the market. The next year, Windows 3.0 debuted, followed shortly afterwards by WinWord 1.1 which was updated for the new OS (WinWord 1.0 had been designed for Windows 2.x and could not operate in protected mode on 286 and up PCs). The failure of WordPerfect to produce a Windows version proved a fatal mistake. The following year, WinWord 2.0 was released which had further improvements and finally solidified Word's marketplace dominance. WinWord 3.0 came out in 1992 and was designed for the newly released Windows 3.1, also requiring a 386-based PC for the first time.〔 〕 The early versions of Word also included copy protection mechanisms that tried to detect debuggers, and if one was found, it produced the message "The tree of evil bears bitter fruit. Only the Shadow knows. Now trashing program disk." and performed a zero seek on the floppy disk (but did not delete its contents). After MacWrite, Word for Macintosh never had any serious rivals, although programs such as Nisus Writer provided features such as non-continuous selection, which were not added until Word 2002 in Office XP. Word 5.1 for the Macintosh, released in 1992, was a very popular word processor, owing to its elegance, relative ease of use and feature set. However, version 6.0 for the Macintosh, released in 1994, was widely derided, unlike the Windows version. It was the first version of Word based on a common code base between the Windows and Mac versions; many accused it of being slow, clumsy and memory intensive. With the release of Word 6.0 in 1993 Microsoft again attempted to synchronize the version numbers and coordinate product naming across platforms; this time across the three versions for DOS, Macintosh, and Windows (where the previous version was Word for Windows 2.0). There may have also been thought given to matching the current version 6.0 of WordPerfect for DOS and Windows, Word's major competitor. However, this wound up being the last version of Word for DOS. In addition, subsequent versions of Word were no longer referred to by version number, and were instead named after the year of their release (e.g. Word 95 for Windows, synchronizing its name with Windows 95, and Word 98 for Macintosh), once again breaking the synchronization. When Microsoft became aware of the Year 2000 problem, it released the entire DOS port of Microsoft Word 5.5 instead of getting people to pay for the update. As of February 2014, it is still available for download from Microsoft's web site.〔(【引用サイトリンク】title=Free version of Microsoft Word 5.5 for DOS (EXE format) )〕 Word 6.0 was the second attempt to develop a common code base version of Word. The first, code-named Pyramid, had been an attempt to completely rewrite the existing product. It was abandoned when it was determined that it would take the development team too long to rewrite and then catch up with all the new capabilities that could have been added in the same time without a rewrite. Supporters of Pyramid claimed that it would have been faster, smaller, and more stable than the product that was eventually released for Macintosh, and which was compiled using a beta version of Visual C++ 2.0 that targets the Macintosh, so many optimizations have to be turned off (the version 4.2.1 of Office is compiled using the final version), and sometimes use the Windows API simulation library included.〔(Buggin' My Life Away: Mac Word 6.0 )〕 Pyramid would have been truly cross-platform, with machine-independent application code and a small mediation layer between the application and the operating system. More recent versions of Word for Macintosh are no longer ported versions of Word for Windows. Later versions of Word have more capabilities than merely word processing. The drawing tool allows simple desktop publishing operations, such as adding graphics to documents. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「History of Microsoft Word」の詳細全文を読む スポンサード リンク
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