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NOTE: In the following descriptions the ASCII character corresponding to a hexadecimal value is sometimes placed next to it within brackets. This is done to indicate the mnemonic nature of the values used. For example ($4E,"N") represents the single hexadecimal value $4E, the "N" is mnemonic for DT_NAM, the name record type.
Major types
DM_RAMDEV ($81) RAM device (internal use only)
DM_DEVCHD ($82) Character Device (pseudo type, internal use only)
(SCR.0, PRT.0, COM.0, NUL.0, INP.0, OUT.0)
DM_ROM ($83) ROM Information, consists of three record types:
DT_INF ($40,"@") application information
DT_HLP ($48,"H") help information
DT_NAM ($4E,"N") name of application
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