All specific (named) bank classes have TRY_Named_Bank, and therefore TRY_Generic_Bank, as a base class in order to become a manipulatable YBOS bank. All bank classes consist of a header containing a valid bank key and a valid bank size, a valid type specification in array format, and a user data section. Since the Trybos/YBOS data format specification is so loose, allowing any number of data formats to be described, precise discussion of all specific bank classes is impossible. Examples of simpler specific bank classes are given as they are developed.