I'm going to plunge into the world of slightly more advanced electronics, and one of my teaching tools is a Velleman PCS64i that I just inherited. It's an o-scope front end that interfaces to a PC to provide the display. I'm looking for the DOS software - it is not available on Velleman's web site any more. I found the Windows software, but I'd rather keep it simple for now. If you have the DOS software please let me know .. Thanks, Mike