those functions which are concerned mainly with information handling, storing and processing NOTE - By convention, the higher layer functions are layers 4 to 7 of the open systems interconnection reference model. Found on http://www.electropedia.org/iev/iev.nsf/display?openform&ievref=716-01-22
those functions which are concerned mainly with information handling, storing and processing NOTE - By convention, the higher layer functions are layers 4 to 7 of the open systems interconnection reference model.