Texas Instruments TravelMate 5000 Series User Reference Manual page 221

PC-Doctor Diagnostics
Quit
You can quit PC-Doctor in the following ways:
Remote Operation
This entry opens the Remote Operation menu if you are not
yet online, or closes the remote connection if the system is
already remotely controlled.
When PC-Doctor is operated remotely, it is possible to
perform a remote reboot. Remote rebooting is a
complicated procedure that reloads the operating system
and makes changes to CMOS RAM and configuration files.
For further information on remote operations, refer to
online documentation or help.
D-8 Diagnostics
Exit to DOS (Alt-F4) - takes you back to the DOS
prompt
Reboot - performs a cold boot. PC-Doctor flushes all
files and attempts to flush write-caches
Park HD - prepares a computer for transport