| Array support | Array related functions. |
| Basic I/O | Functions providing basic interface. |
| Dictionary support | Dictionary related functions. |
| Directory functions | Directory and file names functions. |
| Environment support | Functions used to access the process environment variables. |
| Functional programming support | ETA functions and functional constructs. |
| Math functions. | Functions providing math support to Falcon. |
| Message oriented model functions | Functions supporting Message Oriented Programming (MOP) |
| Out of band items support | Handle out of band items. |
| Random functions | Functions providing random numbers and sequences. |
| Serialization functions | Function used to store items persistently. |
| Stream factory functions | Function creating or opening file and system streams. |
| String functions | Functions manipulating strings |
| Transcoding functions | Functions needed to transcode texts into various character sets. |
| Type mangling | Functions managing item conversions, type detection, item structure management and generically manipulating Falcon items. |
| Variable parameters support | Functions giving informations on variable parameters. |
| Virtual Machine Informations | Generic informations on the Virtual Machine. |