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Comparison of Microsoft Windows versions. Microsoft Windows is the name of several families of computer software operating systems created by Microsoft. Microsoft first introduced an operating environment named Windows in November 1985 as an add-on to MS-DOS in response to the growing interest in graphical user interfaces (GUIs).
Some older operating systems, for example MS-DOS, rely on the BIOS to carry out most input/output tasks within the PC. [39] Calling real mode BIOS services directly is inefficient for protected mode (and long mode) operating systems. BIOS interrupt calls are not used by modern multitasking operating systems after they initially load.
A "personal computer" version of Windows is considered to be a version that end-users or OEMs can install on personal computers, including desktop computers, laptops, and workstations. The first five versions of Windows– Windows 1.0, Windows 2.0, Windows 2.1, Windows 3.0, and Windows 3.1 –were all based on MS-DOS, and were aimed at both ...
2001-10-25 Windows XP Embedded: 2002-01-30 Windows XP Media Center Edition: 2002-10-28 Windows XP Tablet PC Edition: 2002-11-07 Windows XP 64-bit Edition: 2003-03-28 Windows Server 2003: 2003-04-24 Windows Small Business Server 2003: 2003-10-09 Windows XP Starter: 2004-08-11 Windows XP Professional x64 Edition: 2005-04-25 Windows Embedded for ...
ReactOS 0.4.14 running the Firefox web browser. ReactOS is a free and open-source operating system for i586/amd64 personal computers intended to be binary-compatible with computer programs and device drivers developed for Windows Server 2003 and later versions of Microsoft Windows.
Windows 10 is a major release of the Windows NT operating system developed by Microsoft.Microsoft described Windows 10 as an "operating system as a service" that would receive ongoing updates to its features and functionality, augmented with the ability for enterprise environments to receive non-critical updates at a slower pace or use long-term support milestones that will only receive ...
OS/2 1.x (developed jointly with IBM until version 1.3) LAN Manager; Windows (16-bit and 32-bit preemptive and cooperative multitasking, running atop MS-DOS) Windows 1.0 (Windows 1) Windows 2.0 (Windows 2 – separate version for i386 processor) Windows 3.0 (Windows 3) Windows 3.1x (Windows 3.1) Windows for Workgroups 3.1 (Codename Snowball)
Windows is still the dominant desktop OS, but the dominance varies by region and it has gradually lost market share to other desktop operating systems (not just to mobile) with the slide very noticeable in the US, where macOS usage has more than quadrupled from Jan. 2009 to Dec. 2020 to 30.62% (i.e. in Christmas month; and 34.72% in April 2020 ...