The parameter files (PARAMETER) and internal coordinate files (IC)
can be read as card images or binary files. Specifying CARD signifies
card image input; specifying FILE signifies binary file input. Please
note that topology file must be read in before the parameters can be
read. More information about the Internal Coordinate files can be found
in their I/O routines,
WRITIC, in the file intcor.flx.
Hydrogen bond (HBOND), protein structure files (PSF) files, harmonic constraints (CONSTRAINT), and non bonded lists (NBOND) can only be read as binary files.
The Image file (IMAGES) containing transformation information can only be read in card image format. This is not to be confused with the Images data structure (see Images).