power. You should familiarize yourself with those settings in Windows
to help prevent data loss.
Standby and Hibernate Modes
While both Standby mode and Hibernate mode permit power savings,
each serves a different purpose. The Standby mode uses a trickle of
battery power to keep the RAM active. This option provides you with
a faster resume. Hibernate provides more substantial power savings, as
well as providing the safe mode for switching batteries. Since the sys-
tem is powered-down it takes longer to resume operation. This Suspend
to Disk option will allow you to suspend for a longer time, since it does
not require battery power to hold the session in RAM. Resuming from
RAM is much quicker than resuming from disk. The WinBook notebook
can remain in the hibernate mode for up to a week on a fully charged
battery. You should consider these factors when deciding which mode
to use.
The Hibernate mode, since it does not consume any power, can also be
a useful way to save you time in getting started on your work. If you
like to work with a number of programs open on a regular basis, you
can use the hibernate mode to save the active session with those pro-
grams already opened. Rather than wait for the system to shut down
each program and then manually reloading each program the next time
you are ready to work, you can suspend and be ready to work once the
session has been resumed.
57
Chapter 4: Mobile Computing
If your WinBook note-
book is unable to
Hibernate, which sus-
pends to disk, (for example if
your Save-to-File file is too small
or damaged), it will suspend to
RAM (Standby). When the unit is
suspended to RAM, there will be
a slow trickle of power and the
battery could drain completely
and data could be lost. When
the unit is in Standby, the power
management system cannot
gauge battery charge levels. Since
the Standby mode uses a trickle
of battery power to maintain the
information in RAM, the battery
will slowly discharge in this mode.
As a result, it is possible, if the
unit remains in Standby until the
battery is completely discharged,
for the information in RAM to
be lost. If you will be suspending
the system for a long period, you
should use the Hibernate method.
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