Compaq 1610 Reference Manual page 71

Use the Compaq Backup and Restore utilities to save the entire
contents of your handheld PC memory to a PC Card (purchased
separately), which can be carried everywhere your handheld PC
goes for easy retrieval while on the road.
These utilities are designed for use with ATA Flash RAM
PC Cards which are approved by Microsoft as Windows CE 2.0
compatible. A minimum card size of 10 MB is recommended. For
information on ordering the Compaq ATA Flash RAM PC Card,
see the Accessories Flier included in the shipping box. For a list
of other Compaq-tested PC Cards, visit the C-Series home page at
www.compaq.com/products/handhelds.
Each time you use the Compaq Backup utility, your data files,
databases, preferences, Windows CE system data, and
applications are copied to the ATA Flash RAM PC Card. The
subdirectories on your handheld PC are also duplicated on the PC
Card.
To perform a backup, follow these steps:
1. Connect to external power or ensure that you have good
batteries in your handheld PC.
2. Insert the ATA Flash RAM PC Card into the PC Card slot on
your handheld PC.
3. Tap Start Programs Compaq Applications Backup.
4. At the prompt, close all active programs before proceeding.
5. In the dialog box that appears, Check Dual Backup if you
want to operate in dual backup mode. (Dual backup creates
two top-level folders on the PC Card: \BackupA and
\BackupB. It toggles between these folders each time it copies
data, thus retaining copies of the last two backups that you
have made. Single backup copies only to \BackupA and
always overwrites the last backup.)
6. Tap the Backup button to begin the backup process.
7. When backup is complete, remove the PC Card and keep it
close by for easy retrieval.