What is Operating System on Computer

What is Operating System on Computer

what is the operating system on an ibm computer what is the operating system on a pc computer what is the most important operating system on the computer what operating system is installed on your computer what operating systems are available for pc what is operating system on a computer what is an operating system on a pc what is an operating system pc ... https://www.youtube.com/watch?v=PL0tvmm7wqU