Wavy Data
     Upon first observation, oscilloscopes seems a bit ho-hum. After all, 
     devices that graphically represent electrical waveforms on a display
     screen tend to fall a bit short on the sex appeal scale. But if you
     spend some time exploring the ways high-end oscilloscopes can visualize
     data, you may start to think the machines are on drugs . . . 
     Cthugha 5.1, an oscilloscope program for PC sound cards, has tuned in, 
     turned on, and decidedly dropped out from the humdrum world of scientific
     analog signal processing. The product of Australian code jock Kevin 
     "Zaph" Burfitt, Cthugha takes your sound card's CD, line, or microphone 
     input and displays it as a swirling, hypnotic, 256-color confection for 
     your eyes. Although Cthugha currently requires MS-DOS, a VGA monitor, and
     a Sound Blaster or Gravis UltraSound sound card, the complete C source 
     code is part of the package, so you can port it, if you're so inclined. 

                                                       HotWired - March 1995