An operating system (OS) is system software that manages computer hardware and software resources and provides common services for computer programs. All computer programs, from games to productivity applications, require an operating system to function, acting as the fundamental interface between the user, applications, and the hardware.

The operating system is fundamental to any computing device. It acts as the intermediary between the user/applications and the hardware, managing memory, processes, files, and input/output. Without an OS, computers would be unable to execute programs or interact with users, making it the bedrock of modern computing that enables all other software to run.

• What is an Operating System?