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.

Just about every piece of technology has some form of an operating system – desktops, laptops, mobile phones, and servers, to name just a few. The Merriam-Webster definition of an operating system?

The certification covers the FACE Technical Standard Edition 3.0 Safety Base and Security Profiles for the Operating System Segment (OSS). PHOENIX – DDC-I Inc. in Phoenix is introducing Future ...

Virtualization technology, whereby multiple operating systems can be run on shared hardware, is extremely well understood if somewhat inefficient in its use of resources. Just a few decades ago, ...

Forbes contributors publish independent expert analyses and insights. I track enterprise software application development & data management. Your computer has an operating system, or OS. You may be ...

The computer's master control program. When a computer is turned on, a small "boot program" loads the operating system. Although additional system modules may be loaded as needed, the main part, known ...