It is known as many things
It could be a football play, a type of door, or it could be something that conceals you, like fog or darkness. The word is used in the military, the navy, and even in physics.
But right now, to me, it is simply, a shrieking white component of a computer. But at the same time it is so complicated, not only because the buildup of a computer is so complex, but because I feel that trying to write down what I really want to onto this screen seems to be more complicated, confounded, convoluted, and confusing than any computer screen I have ever typed anything onto.