Apple Newton Connection Utilities (for Macintosh) - Manual (Page 21)

Previous backups
Every time you back up, the Newton Connection Utilities make a copy of the
previous backup file and store it in a folder called Previous Backups. This
folder is located in your Backups folder.
For example, if the owner’s name for your Newton device is Mike Chen,
the Newton Connection Utilities create a file named Mike Chen’s
Newton Device the first time you back up. The next time you back up, the
Newton Connection Utilities copy the original file and place it in a Previous
Backups folder.
The Newton Connection Utilities maintain a current and previous backup file
for all information in your Newton device’s internal memory and a current
and previous backup file for each storage card you back up.
21 Backing Up and Restoring Information
Most recent backup
of your Newton
Most recent backup
of a storage card
Previous backup of your Newton
Previous backup of
a storage card