Oscilloscope is tools for electronic designer must have. Unfortunatelly, the price for this hardware is too expesive especially for stuedent. But you can try Visual Analyzer Oscilloscope created by Sillanum Software.
Visual Analyzer is a free software oscilloscope. They describe it as "A complete professional real time software that transforms your PC into a complete set of instruments. No new hardware is necessary (you can use the Sound Card of your PC)."
Read more and download it click here
