Long time ago screensavers have been used to prevent the so-called screen-burn-effect - a permanent disfigurement of areas on a CRT display caused by non-moving text or graphics being displayed continuously for long periods of time. To avoid this effect, screen savers have been used to blank the screen or fill it with moving images or patterns when the computer was not in use. Today, screensavers don’t serve their original purpose and are primarily used for entertainment. In fact, we don’t need screensavers any more, however we tend to use them as eye-candy for our coffee breaks.