Other Uses of Screensavers
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Aside from saving the screen from discoloration and for entertainment purposes, these screensavers can also be used for advertisement. Some companies have developed their own themed screensavers and placed their name on a black screen scrolling up and down.
Another use of screensavers is for security – this is maybe its most important use. When you choose a screensaver, you also have the option to set your own password. What happens is that when your computer exits, the screensaver will actually run, and then before you go back to the desktop you have to supply the previously set password. Many people are now using this option to prevent others from invading their privacy.