Latest version of SPECTRUM, an award-winning signal processing application. If you took the old version, you should get this. Bug fixes and a few additions. This is a self-extracting compactor file; just double-click on the icon and it will de-compact itself into two files, the program itself and a Teachtext text file outlining the changes made in this version. SPECTRUM won the 1990 EDUCOM/NCRIPTAL awards for Best Chemistry and Best Design, the only double award winner in this national contest for higher education software. Demo version; no save/print. Keywords: science, math, signal, processing, spectrum, chemistry.