Using the System Utilities
Display
Screen Savers
- At one point, screen savers were used to prevent screen burn in. Screen burn in occured in monitors that displayed the exact same image for an extended period of time. Screen savers are no longer required to prevent screen burn in. Modern displays are much less susceptible to screen burn in than older devices.
- Screen savers are now a security mechanism for locking a computer. By default, no screen saver is conf gured in Windows 7 and the screen does not lock.
- To increase security, you should enable the On resume, display logon screen option. After you enable this option, you can define how many minutes of inactivity are required before the screen saver starts. If no screen saver is selected, the screen is blanked instead. When you resume using the computer, you are forced to log on again. This ensures that if you leave your computer unattended no one can access your work.
