operating system

An operating system (OS) is system software that manages computer hardware, software resources, and provides common services for computer programs. It acts as an intermediary between users and the computer hardware, enabling efficient execution of tasks such as memory management, process scheduling, file handling, and input/output operations. Popular examples include Windows, macOS, Linux, and Android. The OS ensures that different programs and users running on a system do not interfere with each other and that the system operates reliably and securely.