Definition: A computer program that displays aesthetic patterns or images when the computer is not being used, originally intended to prevent screenburn.

Alright class, settle down and listen close, Let’s talk about screensavers, a colorful dose! The dictionary tells us, it's quite clear, “A program that shows pictures, year after year!” When your computer’s idle, quiet and still, It doesn’t just show a blank, empty thrill. Instead, a lovely pattern starts to flow, Like swirling stars or a gentle snow! Now "screenburn," you might have heard it said, Was the reason these screensavers were bred. Back in the days of monitors so new, Leaving an image there could be quite blue! The static display, for hours on end, Could damage the screen, my dear friend! So screensavers came along, a clever design, To keep your display bright and truly shine! They're meant to distract you, while the system’s low, And prevent that old problem – you know! Does that make sense? Any questions so far? Let’s discuss it further, if you really are.