The hardware provides the raw power and functionality that enables the computer to work, and the operating system controls the bulk of the hardware's activity.

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

New York Times writer Joe Nocera argues that the Windows operating system doesn't matter any more, because webapps are rendering all operating syste ...

Buried deep inside your computer's Intel chip is the MINIX operating system and a software stack, which includes networking and a web server. It's slow, hard to get at, and insecure as insecure ...

Emulators are a class of computer software that allow one computer system, the host, to simulate a different operating system, in order to run an application meant for the foreign system. There's ...

The first passwords were easily compromised, but Corbató's pioneering time sharing and operating system work led to the LAN, email, file sharing, and other technologies computer users now take ...