
operating system (OS)
An operating system (OS) is software that manages a computer's hardware and resources, enabling other programs to run smoothly. It acts as a bridge between the user and the machine, coordinating tasks like running applications, managing files, and controlling devices such as printers and keyboards. Think of it as the foundation that allows various software to work together efficiently, ensuring the computer operates reliably and securely. Popular examples include Windows, macOS, and Linux. The OS handles complexity behind the scenes so users can interact with their devices easily and effectively.