Microsoft
In 1990, Microsoft introduced its office suite, Microsoft Office. The suite bundled separate productivity applications, such as Microsoft Word and Microsoft Excel. On May 22, Microsoft launched Windows 3.0, featuring streamlined user interface graphics and improved protected mode capability for the Intel 386 processor. Both Office and Windows became dominant in their respective areas.
Microsoft
Despite having begun jointly developing a new operating system, OS/2, with IBM in August 1985, Microsoft released Microsoft Windows, a graphical extension for MS-DOS, on November 20. Microsoft moved its headquarters to Redmond on February 26, 1986, and on March 13 went public, with the resulting rise in stock making an estimated four billionaires and 12,000 millionaires from Microsoft employees. Microsoft released its version of OS/2 to original equipment manufacturers (OEMs) on April 2, 1987. In 1990, due to the partnership with IBM, the Federal Trade Commission set its eye on Microsoft for possible collusion, marking the beginning of over a decade of legal clashes with the U.S. government. Meanwhile, the company was at work on a 32-bit OS, Microsoft Windows NT, which was heavily based on their copy of the OS/2 code. It shipped on July 21, 1993, with a new modular kernel and the Win32 application programming interface (API), making porting from 16-bit (MS-DOS-based) Windows easier. Once Microsoft informed IBM of NT, the OS/2 partnership deteriorated.