Why is an operating system called disk operating system?

An operating system is / was called a "disk" operating system because it was stored on a floppy disk or hard drive, as opposed to either being embedded in a ROM chip (like early versions of Mac OS were), or stored on a cartridge, cassette, tape reel, or some other storage medium. The usage fell out of favor due to the popularity of MS-DOS: "DOS" was thereafter used to refer only to MS-DOS or compatible operating systems.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.