Rockwell Automation 6182 SDK - Manual (Page 17)

Introduction to the RAC6182 1–11
Publication 6182-UM002B-EN-P
During an uncontrolled shutdown (i.e. hard-power down), the system
does not have enough time to flush the registry to persistent storage.
Therefore, the registry must have been flushed by one of the means
described above or else changes to the registry since the last flush will be
lost. It is recommended that the controlled shutdown procedure be used
for shutdown even if other registry flushing by applications is in place.
Local File Systems
The RAC6182 Windows CE operating system provides support for two
separate local file systems. A DOS compatible FAT16 file system is
implemented in one of the two Disk-On-Chip partitions; accordingly, its
files are persistent. A RAM file system (RAMDISK or Object Store) is
implemented in that part of the system DRAM reserved for it. The files
in the RAM file system are not persistent.
The FAT16 and RAM file systems can be viewed and manipulated by the
Windows Explorer utility. Within the Windows Explorer, these systems
appear as parts of one larger system. That is, they appear as directories
under “My Computer”. The FAT16 file system appears as “\Storage
Card”, while the RAM file system includes several directories, including
the most important, the “\Windows” directory, where system binaries are
stored.