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Power management
This computer has a built-in power management unit that monitors 
system activity. System activity refers to any activity involving one or 
more of the following devices: keyboard, mouse, floppy drive, hard 
disk, peripherals connected to the serial and parallel ports, and video 
memory. If no activity is detected for a period of time (called an 
inactivity timeout), the computer stops some or all of these devices in 
order to conserve energy.
This computer employs a power management scheme that supports 
ACPI (Advanced Configuration and Power Interface), which allows for 
maximum power conservation and maximum performance at the same 
time. Windows handles all power-saving chores for your computer.