“…Shortly following the advent of the microprocessor and widespread incorporation of them in microcomputers (i.e., personal computers), a number of SISs were developed, including NMR, − IR, − UV–Vis, , X-ray fluorescence, ESR, and HPLC simulators, some of which have a command line interface, while others have a visual interface that was designed to resemble that of the real instrument. Changes in computer technology over the years have necessitated the continued development of interactive software for the teaching of chemistry, and accordingly, a number of SISs with more modern visual interfaces have since been developed for HPLC, , NMR spectroscopy, , Raman spectroscopy, fluorescence spectroscopy, UV–Vis spectroscopy, and FTIR spectroscopy …”