What is a screensaver and how does it work?
A screensaver is a small software application that is automatically activated when you leave your computer unattended without any keyboard of mouse activity, for 5 or more minutes. The first screensavers were build about 15 years ago to save the phosphor of the monitor screen, from being exposed to the electron rays when the users forgot the computer On. Nowadays screensavers are used mostly to show graphic animations when a user does not work with his computer.
