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.

Modern PCs, tablets and smartphones have an easy-to-use, graphical veneer that hides the complexity of the operating system software beneath that enables them work. While the developers of your device ...

NEEDHAM, Mass.--(BUSINESS WIRE)--International Data Corporation (IDC) today published its annual server operating system environment (OSE) market share and forecast reports as well as in-depth survey ...