Saturday, April 23, 2011

State the function of OS

Starting a computer

- When we start a computer, it loads the operating system into the computer’s memory.

- This process is called booting. Booting means to load and initialize the operating system on a computer machine. it can happen in two ways: warm boot or cold boot.


Providing a user interface

- When we start a computer, it loads the operating system into the computer’s memory.

This process is called booting. Booting means to load and initialize the operating system on a computer machine. it can happen in two ways: warm boot or cold boot

Managing data and programs

- When we start a computer, it loads the operating system into the computer’s memory.

Multitasking operating systems enables users to work with two or more application programs at the same time

Managing memory

- optimizing the use of random access memory (RAM)

- allocating data and instruction to an area of memory while being processed

- monitoring the contents of memory

releasing data and instructions from being monitored in memory when the process is done

Configuring devices

- Another function of an operating system is handling input and output, as well as enabling communication with input and output devices.

- Most operating systems come with drivers for popular input and output devices.

- These drivers install new devices and check whenever there is conflict with these devices.

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