An interactive system for debugging programs in which a persistent data base system responds to update queries containing debugging information from a debugging information source and to read queries on the debugging information from an interactive interface. The patient rests on an ergonomically designed table with a hole or two holes to allow one breast or two breasts to extend through the table such that the gantry frame surrounds that breast. A staple magazine is carried on the housing for containing a clip of staples so that a leading staple of the clip is disposed in a staple discharge path below the driving blade. The subordinated account holder would optionally require permission from the master account holder to complete a purchase. The capacity and density enhancement circuit is composed of a first enhancement transistor, a second enhancement transistor, a first mask transmission gate, a second mask transmission gate, a first logic memory capacitor and a second logic memory capacitor. A method of adapting a conventional ADC to adaptively sample the signal by adding a transformation means run off the same clock as the ADC is also provided.