What does operating system actually mean? Find out inside PCMag's comprehensive tech and computer-related encyclopedia.

An operating system, a graphics program, a browser, and basic utilities people use every day. While Microsoft is anxious to create these bundles, seeing it as opportunity, however, Ubuntu seems to ...

What is going to be the "operating system" of the future? This question was originally answered on Quora by Samantha Radocchia.

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 is developing an all-new operating system codenamed "Charismatic," according to Bloomberg's Mark Gurman. Apple smart ...

Ultimately, your operating system needs to be able to keep up with ongoing security updates and compatibility with current software. An OS released within the past five years should be up to the task.

What Is the Most Secure Operating System? Not all operating systems are built the same, and some have to deal with more threats than others.