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 ...

Maintaining a secure Windows environment in the enterprise may seem a daunting task. Though there are many elements to consider — antivirus protection, intrusion detection and personal firewalls — ...

Real operating systems on a tiny microcontroller.

Your PC has more options than the usual household names.

What are open-source operating systems? Underpinning an operating system, for example Windows on your PC or Android on your phone, is many, many lines of code. Allowing anyone to inspect the source ...

What's really the most popular operating system? That depends on how you look at them and who's doing the looking. For example, Net Applications shows Windows on top of the desktop operating system ...