Main articles: History of Microsoft and History of Microsoft Windows
Paul Allen and Bill Gates (respectively) on October 19, 1981 in a sea of PCs after signing a pivotal contract. IBM called Microsoft in July 1980 inquiring about programming languages for its upcoming PC line;[1] after failed negotiations with another company, IBM gave Microsoft a contract to develop the OS for the new line of PCs.[2]
Microsoft entered the OS business in 1980 with its own version of Unix, called Xenix.[6] However, it was DOS (Disk Operating System) that solidified the company's dominance. After negotiations with Digital Research failed, IBM awarded a contract to Microsoft to provide a version of the CP/M OS, which was set to be used in the upcoming IBM Personal Computer (IBM PC). For this deal, Microsoft purchased a CP/M clone called 86-DOS from Seattle Computer Products, branding it as MS-DOS, which IBM rebranded to PC-DOS. Following the release of the IBM PC in August 1981, Microsoft retained ownership of MS-DOS. Since IBM copyrighted the IBM PC BIOS, other companies had to reverse engineer it in order for non-IBM hardware to run as IBM PC compatibles, but no such restriction applied to the operating systems. Due to various factors, such as MS-DOS's available software selection, Microsoft eventually became the leading PC OS vendor.[2][7] The company expanded into new markets with the release of the Microsoft Mouse in 1983, as well as a publishing division named Microsoft Press.[8] Paul Allen resigned from Microsoft in February after developing Hodgkin's disease.[9]
1985–1994: Windows and Office
The sign at a main entrance to the Microsoft corporate campus in Redmond. In May 2005 the campus stretched more than 750,000 m² (approx. 8 million square feet) and contained over 30,000 employees.[10]
Microsoft introduced its office suite, Microsoft Office, in 1990. The software bundled separate office productivity applications, such as Microsoft Word and Microsoft Excel.[17] On May 22 Microsoft launched Windows 3.0 with a streamlined user interface graphics and improved protected mode capability for the Intel 386 processor.[18] Both Office and Windows became dominant in their respective areas.[19][20] Novell, a Word competitor from 1984–1986, filed a lawsuit years later claiming that Microsoft left part of its APIs undocumented in order to gain a competitive advantage.[21]
1995–2005: Internet and the 32-bit era
Bill Gates giving his deposition in 1998 for the United States v. Microsoft trial. Once the U.S. Department of Justice 1993 took over from the Federal Trade Commission, a protracted legal wrangling between Microsoft and the department ensued, resulting in various settlements and possible blocked mergers. Microsoft would point to companies such as AOL-Time Warner in its defense.[14]
Bill Gates handed over the CEO position on January 13, 2000 to Steve Ballmer, an old college friend of Gates and employee of the company since 1980, creating a new position for himself as Chief Software Architect.[4][29] Various companies including Microsoft formed the Trusted Computing Platform Alliance in October 1999 to, among other things, increase security and protect intellectual property through identifying changes in hardware and software. Critics decry the alliance as a way enforce indiscriminate restrictions over how consumers use software, and over how computers behave, a form of digital rights management; for example the scenario where a computer is not only secured for its owner, but also secured against its owner as well.[30][31] On April 3, 2000, a judgment was handed down in the case of United States v. Microsoft,[32] calling the company an "abusive monopoly";[33] it settled with the U.S. Department of Justice in 2004.[12] On October 25, 2001 Microsoft released Windows XP, unifying the mainstream and NT lines under the NT codebase.[34] The company released the Xbox later that year, entering the game console market dominated by Sony and Nintendo.[35] In March 2004 the European Union brought antitrust legal action against the company, citing it abused its dominance with the Windows OS, resulting in a judgment of €497 million ($613 million) and to produce new versions of Windows XP without Windows Media Player, Windows XP Home Edition N and Windows XP
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