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Learning the Basics
Powering down the computer
5.375 x 8.375 ver 2.4.1
Factors to consider when choosing Turn Off or Shut down:
❖ No power is used while the computer is turned off. This
is the most efficient mode if you will be away from your
computer for an extended time.
❖ Restarting from Turn Off or Shut down uses the most
time and battery power.
❖ When starting up again, the system does not
automatically open the programs and files you were
previously using.
Restart command
Restart is the same as Turn Off or Shut down but
automatically powers up the computer. Use it when you need
to reload the operating system, for example to activate
changes to system settings.
Hibernation command
The Hibernation command powers off the computer, but it
first saves the current state of the computer to the hard disk.
Since Hibernation does not require power to maintain the
saved information, the system settings are retained
indefinitely. Restoring information from the hard disk takes
longer than restoring it from memory. When you restart the
computer, the computer runs a self-test, loads the operating
system, and then returns to the state in which you left it.
Factors to consider when choosing Hibernation:
❖ While in Hibernation mode, the computer uses no battery
power.
❖ Because the state of the system is held on the hard disk,
no data is lost if the battery discharges while the
computer is in Hibernation mode.
❖ When starting up again, this choice uses less time and
battery power than the Turn Off or Shut down option. But
it uses a little more time and battery power to start up