Compaq 1610 Reference Manual page 70

You can back up and restore your C-Series data using the
following utilities:
Microsoft Backup/Restore. For comprehensive and secured
backup protection, use this Windows CE Services utility to
periodically back up your handheld PC data onto your
computer's hard drive. You can manually back up data or set
this utility to back up automatically each time you connect to
your handheld PC. For detailed instructions, see "Backup and
Restore" in the Windows CE Services Help that you installed
on your computer.
Compaq Backup and Restore. For comprehensive and
convenient backup protection, these utilities (preinstalled on
your C-Series) let you back up and restore your entire
handheld PC memory contents to an ATA Flash RAM PC
Card (purchased separately). You can then carry a PC Card–
based copy of your data with you at all times for quick
retrieval. For more on this, see the next section, "Using
Compaq Backup and Restore."
Compaq Flash Memory Manager. When you do not have
access to your computer or a PC Card, use the Flash Memory
Manager utility (preinstalled on your C-Series) to back up as
much data as possible onto your handheld PC. Use this utility
for emergency backups when both the main and backup
batteries are almost depleted. Depending on the amount of
space available in memory, your Contacts, Tasks, Calendar,
and other application and system data can be backed up. For
more on this, see "Using Compaq Flash Memory Manager"
later in this chapter.
To avoid losing your data in the event that your C-Series is
lost, stolen, or becomes defective, Compaq recommends periodic
backups to the computer or ATA Flash RAM PC Card.
Depending on your handheld PC usage, you may want to perform
a backup as often as once a day.