What are the functions of operating systems?

There  are some important functions of operating systems are given below,

• The operating system is provides security and information protection.
• It is manages the processor by scheduling among different program or user.
• The operating system interfaces like constant application program.
• It manages the memory between different program and user.
• The operating systems organizes the file storage i.e. file management.
• The operating system serves allocation and reallocation in memory.
• It is responsible for managing input /output devices connected to computer.
• The operating system allows computer system resources to be used in an efficient manner.
• Execution of users program is also carried out by operating system by allocating the required resources.
• When we connect the device drive to a computer, the operating system controls it.