Answer:
The three main functions include:
Process management
Memory management
File system management
Step-by-step explanation:
The three main functions of an operating system are:
Process management: The operating system manages and controls the execution of processes (programs) on a computer. It allocates system resources such as CPU time, memory, and input/output devices to ensure efficient and orderly execution of multiple processes simultaneously.
Memory management: The operating system is responsible for managing the computer's memory resources. It allocates and deallocates memory space to different processes, ensuring that each process has sufficient memory to run effectively. It also handles memory protection to prevent one process from accessing the memory assigned to another process.
File system management: The operating system provides a file system that organizes and manages files stored on the computer's storage devices. It handles file creation, deletion, and access permissions. The file system also ensures data integrity, reliability, and security by managing file storage and retrieval operations.
They all have their own uses and I explained them a bit right there.
Hope I helped :))