What Is an Operating System? An operating system (OS) is the fundamental software that acts as the brain of your computer. It's the master program that orchestrates all the computer's operations ...

Called ZARDOS, the operating system is built to run on an Arduino MEGA although a smaller version is available for the Uno. The Arduino is connected by a serial cable to the Minitel terminal.

Patrick Marshall answers questions about how to find out if you have a pirated version of a Windows operating system and how secure are VPNs.