JSR075 (formerly the JSR for the PDA Profile specification) produced specifications for two optional packages that can be implemented on top of CLDC 1.0 or higher. They are the PIM and FileConnection optional packages. Even though they were defined by the same JSR, they can be implemented independently.
The PIM optional package adds the package javax.microedition.pim to CLDC. The purpose of this package is to provide the developer with the ability to access and manage information in the PDA's address book, to do list, and calendar.
The FileConnection optional package adds to CLDC 1.0 or higher the package javax.microedition.io.file. This package adds another connection type to the Generic Connection Framework (GCF), and provides access to the PDA's file system. The file system can be on the device itself, or on memory cards such as CompactFlash (CF) and Secure Digital (SD) cards.