Get step-by-step instructions for determining the operating system (OS) version on your devices and why it is so important to keep the OS updated.

These operating systems treat extra features the way budget airlines treat legroom.

HamsterOS fits on just a single 1.44 MB floppy disk, and it's set for a full release this November.

Operating systems are the foundational software that mediate between hardware resources and user applications. At their core, they manage processors, memory, storage and peripherals, enforcing ...

OS X may be retired, but it deserves to be remembered. Take a trip back with these 14 key milestones in the double-decade history of the operating system that helped transform a nearly bankrupt Apple ...