- May
-
- Microsoft introduces the Microsoft Project for Windows project management software. [1049.145]
- Microsoft introduces PowerPoint presentation software for Windows. [1049.145]
- Asymetrix introduces ToolBook for Windows, an object-oriented visual development package. [1049.129]
- Digital Research releases DR DOS 5.0. [146] [511.242]
- May 22
-
- At the Center City Theater at Columbus Circle in New York, Microsoft introduces and ships Microsoft Windows 3.0. This version allows addressing memory above 640 kB. Microsoft spends US$3 million for opening-day marketing, as part of a US$10 million promotional campaign. [15] [28] [45] [75] [123] [146] [150] [346.239] [346.272] [379.256] [389.29] [477.161] [479.128] [548.159] [595.26] [606.81] [620.130] [618.296] [721.156] [769.4] [909.232] [1149.359] [1299.1] [1527.176] [1639.114] [1897.129] [2605.173]
- (month unknown)
-
- John Dvorak quote: "I think Windows 3.0 will get a lot of attention; people will check it out, and before long they'll all drift back to raw DOS. Once in a while they'll boot Windows for some specific purpose, but many will put it in the closet with the Commodore 64.". [648.20]
- June
-
- Adobe Systems introduces the Adobe Type Manager for Windows software. [1049.147]
- A US District Court judge rules that Paperback Software's duplicating the menu interface of Lotus 1-2-3 is a violation of copyright (the "look and feel" lawsuit was filed in 1987). [16] [161] [217]
- Microsoft ships PowerPoint 2.0 for Windows, the first application to use OLE (Object Linking and Embedding). [909.232]
- (month unknown)
-
- Timeworks releases the Publish It! Easy 2.0 page-design program for the Macintosh. [675.99]
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- Walt Disney Computer Software releases The Animation Studio for the Amiga computer, for US$179. [645.18] (1989 [2014.C12])
- Claris buys Filemaker from Nashoba Systems, and renames it FileMaker II. [861.21]
- Stac Electronics releases Stacker for DOS. [748.46]
- July
-
- Informix Software introduces the Wingz for Windows software. [1049.147]
- Lotus Development files lawsuits against Borland International (maker of Quattro) and Santa Cruz Operations (maker of SCO Professional) claiming copyright infringement of the Lotus 1-2-3 spreadsheet software. Borland International files a lawsuit against Lotus Development first, hoping to have the trial in California rather than Boston. [217] [453.4] [548.340]
- Accolade releases the Star Control game for personal computers. The game is based on the Space War game of 1961. [1794.63]
- (month unknown)
-
- MacroMind releases the Director 2.0 softwarefor the Macintosh. Price is US$695. [1095.178]
- Borland International introduces the Paradox 3.5 database program for DOS. Price is US$795. [1095.127]
- Borland International introduces the Turbo C++ Professional 1.0 software development package for PC-DOS. Price is US$299.95. Price for Turbo C++ 1.0 is US$199.95. [1095.186]
- Lotus Development introduces the Improv spreadsheet program for the NeXT Computer. Price is US$695. [1095.147]
- August
-
- Microsoft releases LAN Manager for Windows. [772.29] [1186.25]
- September
-
- IBM and Microsoft end co-operative work on operating systems, dividing up work-to-date between them, in a series of cross-licensing agreements. Microsoft will work on Windows, DOS, and a portable version of OS/2. IBM will continue development of 16-bit (v1.x) and 32-bit (v2.0) versions of OS/2. [162] [346.245] [379.256] [477.161] [511.95] [795.15] [909.232] [1299.399] [1897.129] (November [38])
- (month unknown)
-
- Microsoft ships the one millionth copy of Windows 3.0. [1149.362]
- October
-
- IBM releases OS/2 1.3. Code-name during development was Cutter. Code-name at Microsoft was Tiger. [769.306] [1299.383] (December [858.71])
- IBM demonstrates the NeXTSTEP operating system running on an IBM RS/6000 workstation. [734.283]
- Microsoft's Bill Gates quote: "Even for the next ten years, [DOS] will have a significant role to play." [23]
- November
-
- Zortech introduces the Zortech C++ software development package for Windows, DOS, and OS/2. [1049.140]
- Berkeley Softworks releases GeoWorks Ensemble software for IBM PC compatibles. [1129.165] [1897.129] (1991 [909.236])
- Berkeley Softworks releases PC/GEOS 1.0 for MS-DOS, with GeoWorks Ensemble. [477.164] [1639.116]
- (month unknown)
-
- Microsoft announces Microsoft Money personal finance software. [1149.379]
- December 14
-
- Apogee Software releases the Commander Keen game for personal computers, as shareware. [2583.175] [2649.89]
- December
-
- Microsoft begins shipping the first version of the Object Linking and Embedding (OLE) library for Microsoft Windows 3.0. [511.67]
- Ashton-Tate's lawsuit regarding the copyright on the dBase language is dismissed in court. US District Court judge Terry Hatler rules that the dBase language is not copyrightable, because it originated from a public domain program: JPLDIS from the Jet Propulsion Laboratory. [25] [548.344] [676.51] [679.51]
- Year
-
- Shipments of operating system software during the year: DOS 14 million, OS/2 300,000, UNIX 400,000, Mac OS 2,000,000. [1299.420]
- Shipments of Microsoft Windows 3.0 for the year: 2.75 million. [1080.197]
- Market share of PC spreadsheet software: Lotus 1-2-3 47%, Quattro 14%, Microsoft Excel 14%. [527.59]
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