What are the five main functions of an operating system?

1.	What are the five main functions of an operating system?
Answer» Five main functions of an OS are – System boot – starting (or restarting) a computer. Load and execute programs – FACILITATES loading of user and system programs into the memory to execute them efficiently. Managing memory –efficiently allows memory to different programs that run parallelly on a computer. Without OS, there will be CHAOS amongst various programs. Scheduling – If there are many processes to be run, the OS prioritizes and decides which method should GET the CPU first. Security – OS prevents a user from accessing system files that should be protected from accidental or illegal MODIFICATION or deletion.

Answer»

Five main functions of an OS are –

System boot – starting (or restarting) a computer.
Load and execute programs – FACILITATES loading of user and system programs into the memory to execute them efficiently.
Managing memory –efficiently allows memory to different programs that run parallelly on a computer. Without OS, there will be CHAOS amongst various programs.
Scheduling – If there are many processes to be run, the OS prioritizes and decides which method should GET the CPU first.
Security – OS prevents a user from accessing system files that should be protected from accidental or illegal MODIFICATION or deletion.

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