Hi everyone...
In this time , i want to telling you about operating system / OS in computer.
Well , OS in computer was very perfect. Like apple os ( mac os x ) , windows os (windows 8 , 7 ) and opensource os ( linux , etc ).
Operating system is very different kind , i mean there are some big different in use , in theme , in function , and so many. 

Apple os is very exclusive because the operating system is only in the mac computer. With the glossy color , mac computer is very cool. Apple is very good in the security system , it can be proved when we look Ios Devices... In the Ios Devices application must be buy , you can't break it again.

Windows os are very many user use it in their computer, because windows os is simple , functional and very application in here. Windows os was made by Microsoft. I think windows os is stabilizer than other operating system to use like office , game , internet , and work.

Opensource os is free softwar and like android software. Their are many software maker start from this os , because this system is support to made software. In my school , we use opensouce software. I like this os very much , because this software is simple to use office work.

Eventhought many operating system in the world, but i believe there are just one winner operating system in the future.

Thank you :)

There is some operating system picture :

Windows OS

Mac OS