pailryder,
I will try to give a serious response to your comment. Beyond having drop down menus and radio buttons which make Quickfix feel like Buzz Lightyear, computerization does nothing to enhance your ability to detect deception. Digital is not superior to analog. Analog to Digital Converters (ADC) simply sample the analog signal and convert these samples to numbers which can be stored. Computer software can then perform various mathematical manipulation of these sampled data to relieve the polygraph operator of the task of scoring the charts; the most common is a statistical approach using discriminant analysis. I suppose there could be some utililty to this if there were dozens of charts to be read as in a study, but beyond that it does nothing more than what you are already supposed to know how to do. Digitization may have made housekeeping less tedious, but it hasn't advanced your ability to detect deception one iota.