User's Manual Part 4
FILE AUTHENTICATION
Introduction to File Authentication
O
MNI 3600 REFERENCE MANUAL 111
Figure 39 Certificate Replacement Process
File Authentication
and the Omni 3600
File System
Application Memory Logically Divided Into File Groups
The memory of an Omni 3600 terminal is logically divided into two main areas, or
partitions: One partition is for the operating system and the other partition is
reserved for applications. The application partition is further divided into sub-
partitions. These sub-partitions are called file groups or GIDs.
This system of partitions and sub-partitions makes it possible to store multiple
applications in terminal memory and prevent these applications from overlapping
or otherwise interfering with each other’s operation.
There are a total of 16 file groups (Figure 40). Group 0 is the name of the
operating system partition. Group 1 is reserved for the main application. Groups
2–14 are available for related executable files or secondary applications. Group
15 is open, and used for shared files.
NOTE
The process for replacing a signer certificate is the same as for replacing a
sponsor certificate.