invention mode icon 604 shows the espresso machine mode of operation which may include a manual mode a manual program or a volumetric program mode here shown on icon 604 is the volumetric program mode icon vp an espresso machine operating in volumetric program mode is typically controlled on a flow basis as sensed by the flow meter an espresso machine operating in manual program mode mp is typically controlled by the sequence timer with some control by the user manual mode m is typically a mode of operation under full control by the user phase icon 606 indicates a relative duration of each phase of the brewing sequence the phases will be described in more detail with reference to fig7 the embodiment shown uses simple bar graphs to display the relative length of each of three phases memory storage location icon 608 shows the memory portion of computer storage memory 534 that is currently selected for use here icon 608 is a dot which points to a first memory storage location additional storage location icons if available may be arrayed below icon 608 or along the right border of display 600 if the storage memory location is ready to receive data a save icon 610 is shown fig6 b shows a save mode display.