Data items in the COMPUTING category record details about the
               computer programs used in the crystal structure analysis.
               Data items in this category would not, in general, be used in
               a macromolecular CIF.  The category SOFTWARE, which allows
               a more detailed description of computer programs and
               their attributes to be given, would be used instead.
 
    _computing.entry_id             '1ABC'
    _computing.data_collection      'CAD-4 (Enraf-Nonius, 1989)'
    _computing.cell_refinement      'CAD-4 (Enraf-Nonius, 1989)'
    _computing.data_reduction       'CFEO (Solans, 1978)'
    _computing.structure_solution   'SHELXS86 (Sheldrick, 1990)'
    _computing.structure_refinement 'SHELXL93 (Sheldrick, 1993)'
    _computing.molecular_graphics   'ORTEPII (Johnson, 1976)'
    _computing.publication_material 'PARST (Nardelli, 1983)'
      