The Microsoft Windows family of operating systems originated as a graphical layer on top of
the older MS-DOS environment for the IBM PC. Modern versions are based on the newer Windows
NT core that first took shape in OS/2 and borrowed from OpenVMS. Windows runs on 32-bit and
64-bit Intel and AMD computers, although earlier versions also ran on the DEC Alpha, MIPS, and
PowerPC architectures (some work was done to port it to the SPARC architecture).
As of 2004, Windows held a near-monopoly of around 90% of the worldwide desktop market share,
although this is thought to be dwindling due to the increase of interest focused on open source
operating systems. [1] It is also used on low-end and mid-range servers, supporting applications
such as web servers and database servers. In recent years, Microsoft has spent significant marketing and R&D money to demonstrate that Windows is capable of running any enterprise application (see
the TPC article).
the older MS-DOS environment for the IBM PC. Modern versions are based on the newer Windows
NT core that first took shape in OS/2 and borrowed from OpenVMS. Windows runs on 32-bit and
64-bit Intel and AMD computers, although earlier versions also ran on the DEC Alpha, MIPS, and
PowerPC architectures (some work was done to port it to the SPARC architecture).
As of 2004, Windows held a near-monopoly of around 90% of the worldwide desktop market share,
although this is thought to be dwindling due to the increase of interest focused on open source
operating systems. [1] It is also used on low-end and mid-range servers, supporting applications
such as web servers and database servers. In recent years, Microsoft has spent significant marketing and R&D money to demonstrate that Windows is capable of running any enterprise application (see
the TPC article).
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