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  2. Windows 11 - Wikipedia

    en.wikipedia.org/wiki/Windows_11

    Windows 11 is the latest major release of Microsoft 's Windows NT operating system, released on October 5, 2021. It succeeded Windows 10 (2015) and is available for free for any Windows 10 devices that meet the new Windows 11 system requirements. Windows 11 features major changes to the Windows shell influenced by the canceled Windows 10X ...

  3. Windows 11 version history - Wikipedia

    en.wikipedia.org/wiki/Windows_11_version_history

    Windows 11 is a major release of the Windows NT developed by Microsoft that was released in October 2021. Starting with Windows 10, Microsoft described Windows 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 ...

  4. Windows 10 editions - Wikipedia

    en.wikipedia.org/wiki/Windows_10_editions

    At the time of launch, Microsoft deemed Windows 7 (with Service Pack 1) and Windows 8.1 users eligible to upgrade to Windows 10 free of charge, so long as the upgrade took place within one year of Windows 10's initial release date. Windows RT and the respective Enterprise editions of Windows 7, 8, and 8.1 were excluded from this offer.

  5. 64-bit computing - Wikipedia

    en.wikipedia.org/wiki/64-bit_computing

    In 2003, 64-bit CPUs were introduced to the mainstream PC market in the form of x86-64 processors and the PowerPC G5 . A 64-bit register can hold any of 2 64 (over 18 quintillion or 1.8×10 19) different values. The range of integer values that can be stored in 64 bits depends on the integer representation used.

  6. Comparison of Microsoft Windows versions - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_Microsoft...

    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).

  7. Security Identifier - Wikipedia

    en.wikipedia.org/wiki/Security_Identifier

    Security Identifier. In the context of the Microsoft Windows NT line of operating systems, a Security Identifier ( SID) is a unique, immutable identifier of a user, user group, or other security principal. A security principal has a single SID for life (in a given domain), and all properties of the principal, including its name, are associated ...

  8. Windows 2000 - Wikipedia

    en.wikipedia.org/wiki/Windows_2000

    Windows 2000 is a major release of the Windows NT operating system developed by Microsoft and designed for businesses as the direct successor to Windows NT 4.0.It was released to manufacturing on December 15, 1999, officially released to retail on February 17, 2000, and released on September 26, 2000, for Windows 2000 Datacenter Server.

  9. CPUID - Wikipedia

    en.wikipedia.org/wiki/CPUID

    CPUID EAX=1: Processor Version Information in EAX. Stepping ID is a product revision number assigned due to fixed errata or other changes. The actual processor model is derived from the Model, Extended Model ID and Family ID fields. If the Family ID field is either 6 or 15, the model is equal to the sum of the Extended Model ID field shifted ...