The document discusses the main purposes and functions of an operating system. An operating system controls and organizes the general operation of a computer by performing key functions like memory management, device management, storage management, and providing a user interface. It manages the processor by controlling which programs and tasks are loaded into the CPU for processing. An operating system also utilizes virtual memory to load programs from the hard drive into RAM for execution by the processor.

1. PURPOSE OF
OPERATING SYSTEM

2. PURPOSES OF OS
Where might you find an Operating System?
They are found in the personal computer, sat nav, game console, cars, phone. A
system program that controls and organises the general operation of the
computer.
What are the main functions of an Operating System?
Memory management, device management, store management, user interference.
What role does the OS play in managing the processor?
The OS controls what goes into the CPU, like music, documents and more.
What is virtual memory?
When you run a program on your computer, you use RAM to run it. You tell the
computer to run the program and the processor pulls it from the hard drive and
loads it into RAM so it can be worked with.

3. PROCESSOR MANAGEMENT
SLIDESHARE