The first OS installed in a computer. In a virtual machine environment, there may be a host operating system that interacts with the virtual machine monitor, which manages the virtual machines.

A system software component that is external to the operating system kernel. If the phrase is used to refer to the operating system itself, it is redundant because an operating system "is" software.

They’ve closed down these “windows” for the last time. As of October 14, 2025, Microsoft’s Windows 10 has reached the end of its usable life, prompting an outpouring of tributes from tech-heads ...

Windows 7 was first available for consumers to purchase in October of 2009, and nearly more a decade later, its time is finally coming to end. Today, January 14, officially marks the end of support ...

VMware's 3.0 version goes on sale Monday and will allow a Linux "virtual machine" to run on Microsoft's Windows XP system, among other operating system twists. Stephen Shankland worked at CNET from ...

VMware, whose software lets computers run numerous operating systems simultaneously, expects a boost from Windows XP with its coming version 3.0. VMware Workstation 3.0, going on sale Monday, is ...

BEDFORDSHIRE, UNITED KINDOM - MAY 6: The Lamborghini Aventador SVJ leaving the Sharnbrook Hotels Charity event '30k in a day' in Bedfordshire. Unveiled at the 2018 Pebble Beach Concours d'Elegance, ...

Sun Microsystems is working hard to ensure that Linux and Solaris play well together. The server seller is continuing its effort to integrate Linux interfaces into its Solaris operating system, a move ...