What are the functions of the operating system

The operating system (OS) manages a computer's hardware and software resources. Its main functions include:

1. Process Management: It controls the execution of programs, allocating CPU time and resources to different processes.
2. Memory Management: It allocates and deallocates memory space for programs and data, ensuring efficient use of RAM.
3. File Management: It organizes, stores, retrieves, and manages files and directories on storage devices.
4. Device Management: It controls and communicates with hardware devices like printers, keyboards, and monitors through device drivers.
5. User Interface: It provides a way for users to interact with the computer, either through a graphical user interface (GUI) or a command-line interface (CLI).
6. Security: It enforces security policies to protect the system and user data from unauthorized access.