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Power management 53
Power management
Computer equipment can account for a significant portion of energy use in
the home and office environment. You may not want to shut down your
computer each time you leave it, especially if you plan to be away for only
a short time. Windows lets you use the following modes to conserve energy
when the system is not in use:
■ Standby - while your computer is in Standby mode, it switches to a low
power state where devices, such as the monitor and drives, turn off and
the entire system uses less power.
■ Hibernate - (also called save to disk) writes all current memory (RAM)
information to the hard drive, then turns the computer completely off.
The next time you turn on the computer, it reads the memory
information from the hard drive and opens the programs and documents
that were open when you activated Hibernate mode.