Main Page | See live article | Alphabetical index Advanced Power Management (APM) is a feature of some computer displays, usually but not always, on laptop computers, which turns off power to the display after a preset period of inactivity to conserve electrical power. Monitors with this capability are usually referred to as "green monitors", meaning environmentally friendly. Not to be confused with a screensaver which is software that causes the display to go black (by setting every pixel to black) to prevent burn-in. See also power management, ACPI. This article (or an earlier version of it) contains material from FOLDOC, used with permission. This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.