What is the primary function of an operating system?

The primary function of an operating system is to act as an intermediary between users and computer resources. This role is crucial as it facilitates user interaction with the system's hardware and software resources. By managing resources such as the CPU, memory, storage, and input/output devices, the operating system ensures that different programs and users can efficiently coexist and share these resources without conflict.

This intermediary function also includes providing a user interface, whether command-line or graphical, and managing system security and access permissions, which enhances usability and protects user data. Overall, the operating system plays a pivotal role in coordinating all aspects of the computing environment, making it essential for the operation of computers and their applications.