A power-saving mode in which you can place a
laptop or other
power managable device (if you have
OS or
hardware support for it). Unlike
sleep, which uses some power over a long period of time, hibernate shuts the
machine entirely off.
Hibernation is typically writing all of a machine's
memory to disk,
flipping a
flag in the
boot sector, and shutting off. When the machine turns back on, it will write all of the
memory from the
disk, back into memory, and resume processing. I know that Windows 2000 has support for this ( I am not sure about
MacOS or
Linux)
This works prefectly on my
laptop, and is great for long trips. The only
problem with it for me is that my clock tends to get way out of
sync, but the
NT domain fixes that.