Sometimes it annoys you, but without them you could do anything. Without operating systems, the computer is as smart as a rock.
We want to have powerful computers with more RAM and processors fast performance graphics cards and so on. They would be smarter than a rock but if we did not have and Software as, which help us the most of the money I give the hardware facilities. Here come into play operating systems, those programs that often when we boscorodim computer crashes.