Windows 7/8/10

  • Windows 7 is a major release of the Windows NT operating system developed by Microsoft. 
    • It was released to manufacturing on July 22, 2009, and became generally available on October 22, 2009. 
    • It is the successor to Windows Vista, released nearly three years earlier. 
    • Windows 7's server counterpart, Windows Server 2008 R2, was released at the same time. 
    • Windows 7 remained an operating system for use on personal computers, including home and business desktops, laptops, tablet PCs and media center PCs, and itself was replaced in November 2012 by Windows 8, the name spanning more than three years of the product. 
  • Windows 8 is a major release of the Windows NT operating system developed by Microsoft. 
    • It was released to manufacturing on August 1, 2012, and was made available for download via MSDN and TechNet on August 15, 2012. 
    • Nearly three months after its initial release, Windows 8 finally made its first retail appearance on October 26, 2012.
    • Windows 8 introduced major changes to the operating system's platform and user interface with the intention to improve its user experience on tablets, where Windows competed with mobile operating systems such as Android and iOS.
  • Windows 10 is a major release of Microsoft's Windows NT operating system. 
    • It is the direct successor to Windows 8.1, which was released nearly two years earlier. 
    • It was released to manufacturing on July 15, 2015, and later to retail on July 29, 2015.[18] Windows 10 was made available for download via MSDN and TechNet, as a free upgrade for retail copies of Windows 8 and Windows 8.1 users via the Windows Store, and to Windows 7 users via Windows Update. 
    • Windows 10 receives new builds on an ongoing basis, which are available at no additional cost to users, in addition to additional test builds of Windows 10, which are available to Windows Insiders. Devices in enterprise environments can receive these updates at a slower pace, or use long-term support milestones that only receive critical updates, such as security patches, over their ten-year lifespan of extended support.